SD-WAN

  • 1.  Troubleshooting DHCP Server on 128T

    Posted 09-02-2019 06:44
    Hi All, 

    I have recently had an issue at 2 sites, within a few days of each other, where the 128T device would stop leasing IPs to the customer LAN devices. 

    Upon further investigation, it didn't seem like there were any issues, apart from the kea-dhcp service restarting every now and then - this didn't really intrigue me because it seems like there is a watchdog of some sort keeping tabs on it. I also don't know if it's normal for the service to restart often, here is a snippet of some logs for reference. 

    2019-09-02 12:00:50.562 INFO  [kea-dhcp4.dhcp4/22069] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:00:50.571 INFO  [kea-dhcp4.lease-cmds-hooks/22069] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:00:50.571 INFO  [kea-dhcp4.hooks/22069] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:00:51.334 INFO  [kea-dhcp4.hosts/22482] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:00:51.336 INFO  [kea-dhcp4.dhcpsrv/22482] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:00:51.336 INFO  [kea-dhcp4.dhcpsrv/22482] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:00:51.338 INFO  [kea-dhcp4.dhcpsrv/22482] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:00:51.340 INFO  [kea-dhcp4.lease-cmds-hooks/22482] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:00:51.340 INFO  [kea-dhcp4.hooks/22482] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:00:51.340 INFO  [kea-dhcp4.dhcp4/22482] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:00:51.340 INFO  [kea-dhcp4.dhcpsrv/22482] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:00:51.340 INFO  [kea-dhcp4.dhcpsrv/22482] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:00:51.342 INFO  [kea-dhcp4.dhcpsrv/22482] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:00:51.348 INFO  [kea-dhcp4.dhcp4/22482] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:00:52.273 INFO  [kea-dhcp4.commands/22482] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:02:10.607 INFO  [kea-dhcp4.leases/22482] DHCP4_INIT_REBOOT [hwtype=1 34:de:1a:99:2e:ec], cid=[01:34:de:1a:99:2e:ec], tid=0x4d3ea3f1: client is in INIT-REBOOT state and requests address 10.100.5.34
2019-09-02 12:02:10.608 INFO  [kea-dhcp4.leases/22482] DHCP4_LEASE_ALLOC [hwtype=1 34:de:1a:99:2e:ec], cid=[01:34:de:1a:99:2e:ec], tid=0x4d3ea3f1: lease 10.100.5.34 has been allocated
2019-09-02 12:02:52.951 INFO  [kea-dhcp4.dhcp4/22482] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:02:52.958 INFO  [kea-dhcp4.lease-cmds-hooks/22482] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:02:52.959 INFO  [kea-dhcp4.hooks/22482] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:02:53.700 INFO  [kea-dhcp4.hosts/22933] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:02:53.702 INFO  [kea-dhcp4.dhcpsrv/22933] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:02:53.702 INFO  [kea-dhcp4.dhcpsrv/22933] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:02:53.704 INFO  [kea-dhcp4.dhcpsrv/22933] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:02:53.706 INFO  [kea-dhcp4.lease-cmds-hooks/22933] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:02:53.706 INFO  [kea-dhcp4.hooks/22933] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:02:53.706 INFO  [kea-dhcp4.dhcp4/22933] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:02:53.706 INFO  [kea-dhcp4.dhcpsrv/22933] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:02:53.707 INFO  [kea-dhcp4.dhcpsrv/22933] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:02:53.708 INFO  [kea-dhcp4.dhcpsrv/22933] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:02:53.720 INFO  [kea-dhcp4.dhcp4/22933] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:02:54.641 INFO  [kea-dhcp4.commands/22933] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:04:42.533 INFO  [kea-dhcp4.leases/22933] DHCP4_LEASE_ADVERT [hwtype=1 58:20:b1:41:fa:7a], cid=[01:58:20:b1:41:fa:7a], tid=0x9449be8: lease 10.100.5.37 will be advertised
2019-09-02 12:04:42.535 INFO  [kea-dhcp4.leases/22933] DHCP4_LEASE_ALLOC [hwtype=1 58:20:b1:41:fa:7a], cid=[01:58:20:b1:41:fa:7a], tid=0x9449be8: lease 10.100.5.37 has been allocated
2019-09-02 12:04:42.899 INFO  [kea-dhcp4.leases/22933] DHCP4_LEASE_ALLOC [hwtype=1 58:20:b1:41:fa:7a], cid=[01:58:20:b1:41:fa:7a], tid=0x61eb3f81: lease 10.100.5.37 has been allocated
2019-09-02 12:04:55.334 INFO  [kea-dhcp4.dhcp4/22933] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:04:55.340 INFO  [kea-dhcp4.lease-cmds-hooks/22933] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:04:55.340 INFO  [kea-dhcp4.hooks/22933] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:04:56.068 INFO  [kea-dhcp4.hosts/23396] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:04:56.070 INFO  [kea-dhcp4.dhcpsrv/23396] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:04:56.070 INFO  [kea-dhcp4.dhcpsrv/23396] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:04:56.073 INFO  [kea-dhcp4.dhcpsrv/23396] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:04:56.075 INFO  [kea-dhcp4.lease-cmds-hooks/23396] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:04:56.075 INFO  [kea-dhcp4.hooks/23396] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:04:56.075 INFO  [kea-dhcp4.dhcp4/23396] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:04:56.075 INFO  [kea-dhcp4.dhcpsrv/23396] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:04:56.076 INFO  [kea-dhcp4.dhcpsrv/23396] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:04:56.078 INFO  [kea-dhcp4.dhcpsrv/23396] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:04:56.084 INFO  [kea-dhcp4.dhcp4/23396] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:04:57.010 INFO  [kea-dhcp4.commands/23396] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:06:57.710 INFO  [kea-dhcp4.dhcp4/23396] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:06:57.716 INFO  [kea-dhcp4.lease-cmds-hooks/23396] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:06:57.716 INFO  [kea-dhcp4.hooks/23396] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:06:58.458 INFO  [kea-dhcp4.hosts/23824] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:06:58.460 INFO  [kea-dhcp4.dhcpsrv/23824] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:06:58.460 INFO  [kea-dhcp4.dhcpsrv/23824] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:06:58.462 INFO  [kea-dhcp4.dhcpsrv/23824] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:06:58.464 INFO  [kea-dhcp4.lease-cmds-hooks/23824] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:06:58.464 INFO  [kea-dhcp4.hooks/23824] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:06:58.464 INFO  [kea-dhcp4.dhcp4/23824] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:06:58.464 INFO  [kea-dhcp4.dhcpsrv/23824] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:06:58.464 INFO  [kea-dhcp4.dhcpsrv/23824] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:06:58.466 INFO  [kea-dhcp4.dhcpsrv/23824] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:06:58.472 INFO  [kea-dhcp4.dhcp4/23824] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:06:59.394 INFO  [kea-dhcp4.commands/23824] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:07:11.623 INFO  [kea-dhcp4.leases/23824] DHCP4_INIT_REBOOT [hwtype=1 d8:5d:e2:ef:db:0f], cid=[01:d8:5d:e2:ef:db:0f], tid=0xa3777098: client is in INIT-REBOOT state and requests address 10.100.5.32
2019-09-02 12:07:11.624 INFO  [kea-dhcp4.leases/23824] DHCP4_LEASE_ALLOC [hwtype=1 d8:5d:e2:ef:db:0f], cid=[01:d8:5d:e2:ef:db:0f], tid=0xa3777098: lease 10.100.5.32 has been allocated
2019-09-02 12:08:19.609 INFO  [kea-dhcp4.leases/23824] DHCP4_LEASE_ADVERT [hwtype=1 74:df:bf:41:e7:f5], cid=[01:74:df:bf:41:e7:f5], tid=0x910a24b1: lease 10.100.5.38 will be advertised
2019-09-02 12:08:19.617 INFO  [kea-dhcp4.leases/23824] DHCP4_LEASE_ALLOC [hwtype=1 74:df:bf:41:e7:f5], cid=[01:74:df:bf:41:e7:f5], tid=0x910a24b1: lease 10.100.5.38 has been allocated
2019-09-02 12:09:00.085 INFO  [kea-dhcp4.dhcp4/23824] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:09:00.091 INFO  [kea-dhcp4.lease-cmds-hooks/23824] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:09:00.091 INFO  [kea-dhcp4.hooks/23824] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:09:00.842 INFO  [kea-dhcp4.hosts/24237] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:09:00.844 INFO  [kea-dhcp4.dhcpsrv/24237] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:09:00.844 INFO  [kea-dhcp4.dhcpsrv/24237] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:09:00.846 INFO  [kea-dhcp4.dhcpsrv/24237] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:09:00.848 INFO  [kea-dhcp4.lease-cmds-hooks/24237] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:09:00.848 INFO  [kea-dhcp4.hooks/24237] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:09:00.849 INFO  [kea-dhcp4.dhcp4/24237] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:09:00.849 INFO  [kea-dhcp4.dhcpsrv/24237] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:09:00.850 INFO  [kea-dhcp4.dhcpsrv/24237] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:09:00.852 INFO  [kea-dhcp4.dhcpsrv/24237] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:09:00.858 INFO  [kea-dhcp4.dhcp4/24237] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:09:01.779 INFO  [kea-dhcp4.commands/24237] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:09:33.095 INFO  [kea-dhcp4.leases/24237] DHCP4_INIT_REBOOT [hwtype=1 d8:5d:e2:ef:db:0f], cid=[01:d8:5d:e2:ef:db:0f], tid=0x786db634: client is in INIT-REBOOT state and requests address 10.100.5.32
2019-09-02 12:09:33.096 INFO  [kea-dhcp4.leases/24237] DHCP4_LEASE_ALLOC [hwtype=1 d8:5d:e2:ef:db:0f], cid=[01:d8:5d:e2:ef:db:0f], tid=0x786db634: lease 10.100.5.32 has been allocated
2019-09-02 12:10:06.559 INFO  [kea-dhcp4.leases/24237] DHCP4_LEASE_ADVERT [hwtype=1 1c:39:47:d1:b4:ca], cid=[01:1c:39:47:d1:b4:ca], tid=0x704867e4: lease 10.100.5.39 will be advertised
2019-09-02 12:10:06.563 INFO  [kea-dhcp4.leases/24237] DHCP4_LEASE_ALLOC [hwtype=1 1c:39:47:d1:b4:ca], cid=[01:1c:39:47:d1:b4:ca], tid=0x704867e4: lease 10.100.5.39 has been allocated
2019-09-02 12:11:02.475 INFO  [kea-dhcp4.dhcp4/24237] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:11:02.482 INFO  [kea-dhcp4.lease-cmds-hooks/24237] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:11:02.482 INFO  [kea-dhcp4.hooks/24237] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:11:03.226 INFO  [kea-dhcp4.hosts/24667] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:11:03.227 INFO  [kea-dhcp4.dhcpsrv/24667] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:11:03.227 INFO  [kea-dhcp4.dhcpsrv/24667] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:11:03.229 INFO  [kea-dhcp4.dhcpsrv/24667] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:11:03.231 INFO  [kea-dhcp4.lease-cmds-hooks/24667] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:11:03.231 INFO  [kea-dhcp4.hooks/24667] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:11:03.232 INFO  [kea-dhcp4.dhcp4/24667] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:11:03.232 INFO  [kea-dhcp4.dhcpsrv/24667] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:11:03.232 INFO  [kea-dhcp4.dhcpsrv/24667] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:11:03.234 INFO  [kea-dhcp4.dhcpsrv/24667] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:11:03.240 INFO  [kea-dhcp4.dhcp4/24667] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:11:04.162 INFO  [kea-dhcp4.commands/24667] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:12:26.083 INFO  [kea-dhcp4.leases/24667] DHCP4_INIT_REBOOT [hwtype=1 d8:5d:e2:ef:db:0f], cid=[01:d8:5d:e2:ef:db:0f], tid=0x3b0da68c: client is in INIT-REBOOT state and requests address 10.100.5.32
2019-09-02 12:12:26.084 INFO  [kea-dhcp4.leases/24667] DHCP4_LEASE_ALLOC [hwtype=1 d8:5d:e2:ef:db:0f], cid=[01:d8:5d:e2:ef:db:0f], tid=0x3b0da68c: lease 10.100.5.32 has been allocated
2019-09-02 12:13:04.843 INFO  [kea-dhcp4.dhcp4/24667] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:13:04.847 INFO  [kea-dhcp4.lease-cmds-hooks/24667] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:13:04.847 INFO  [kea-dhcp4.hooks/24667] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:13:05.621 INFO  [kea-dhcp4.hosts/25081] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:13:05.623 INFO  [kea-dhcp4.dhcpsrv/25081] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:13:05.623 INFO  [kea-dhcp4.dhcpsrv/25081] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:13:05.625 INFO  [kea-dhcp4.dhcpsrv/25081] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:13:05.627 INFO  [kea-dhcp4.lease-cmds-hooks/25081] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:13:05.627 INFO  [kea-dhcp4.hooks/25081] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:13:05.627 INFO  [kea-dhcp4.dhcp4/25081] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:13:05.627 INFO  [kea-dhcp4.dhcpsrv/25081] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:13:05.627 INFO  [kea-dhcp4.dhcpsrv/25081] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:13:05.630 INFO  [kea-dhcp4.dhcpsrv/25081] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:13:05.636 INFO  [kea-dhcp4.dhcp4/25081] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:13:06.562 INFO  [kea-dhcp4.commands/25081] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:13:30.674 INFO  [kea-dhcp4.leases/25081] DHCP4_LEASE_ADVERT [hwtype=1 34:68:95:13:09:db], cid=[01:34:68:95:13:09:db], tid=0x928d497b: lease 10.100.5.40 will be advertised
2019-09-02 12:13:30.680 INFO  [kea-dhcp4.leases/25081] DHCP4_LEASE_ALLOC [hwtype=1 34:68:95:13:09:db], cid=[01:34:68:95:13:09:db], tid=0x928d497b: lease 10.100.5.40 has been allocated
2019-09-02 12:14:52.130 INFO  [kea-dhcp4.leases/25081] DHCP4_INIT_REBOOT [hwtype=1 d8:5d:e2:ef:db:0f], cid=[01:d8:5d:e2:ef:db:0f], tid=0xed27f718: client is in INIT-REBOOT state and requests address 10.100.5.32
2019-09-02 12:14:52.130 INFO  [kea-dhcp4.leases/25081] DHCP4_LEASE_ALLOC [hwtype=1 d8:5d:e2:ef:db:0f], cid=[01:d8:5d:e2:ef:db:0f], tid=0xed27f718: lease 10.100.5.32 has been allocated
2019-09-02 12:15:07.244 INFO  [kea-dhcp4.dhcp4/25081] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:15:07.254 INFO  [kea-dhcp4.lease-cmds-hooks/25081] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:15:07.254 INFO  [kea-dhcp4.hooks/25081] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:15:08.004 INFO  [kea-dhcp4.hosts/25509] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:15:08.006 INFO  [kea-dhcp4.dhcpsrv/25509] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:15:08.006 INFO  [kea-dhcp4.dhcpsrv/25509] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:15:08.008 INFO  [kea-dhcp4.dhcpsrv/25509] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:15:08.010 INFO  [kea-dhcp4.lease-cmds-hooks/25509] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:15:08.010 INFO  [kea-dhcp4.hooks/25509] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:15:08.010 INFO  [kea-dhcp4.dhcp4/25509] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:15:08.010 INFO  [kea-dhcp4.dhcpsrv/25509] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:15:08.011 INFO  [kea-dhcp4.dhcpsrv/25509] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:15:08.013 INFO  [kea-dhcp4.dhcpsrv/25509] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:15:08.019 INFO  [kea-dhcp4.dhcp4/25509] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:15:08.945 INFO  [kea-dhcp4.commands/25509] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:15:36.060 INFO  [kea-dhcp4.leases/25509] DHCP4_LEASE_ADVERT [hwtype=1 50:65:f3:08:f4:54], cid=[01:50:65:f3:08:f4:54], tid=0xd547d2ed: lease 10.100.5.41 will be advertised
2019-09-02 12:15:36.062 INFO  [kea-dhcp4.leases/25509] DHCP4_LEASE_ALLOC [hwtype=1 50:65:f3:08:f4:54], cid=[01:50:65:f3:08:f4:54], tid=0xd547d2ed: lease 10.100.5.41 has been allocated
2019-09-02 12:16:45.483 INFO  [kea-dhcp4.leases/25509] DHCP4_LEASE_ADVERT [hwtype=1 74:df:bf:41:e8:13], cid=[01:74:df:bf:41:e8:13], tid=0xf65710fa: lease 10.100.5.42 will be advertised
2019-09-02 12:16:45.490 INFO  [kea-dhcp4.leases/25509] DHCP4_LEASE_ALLOC [hwtype=1 74:df:bf:41:e8:13], cid=[01:74:df:bf:41:e8:13], tid=0xf65710fa: lease 10.100.5.42 has been allocated
2019-09-02 12:17:09.661 INFO  [kea-dhcp4.dhcp4/25509] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:17:09.668 INFO  [kea-dhcp4.lease-cmds-hooks/25509] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:17:09.668 INFO  [kea-dhcp4.hooks/25509] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:17:10.471 INFO  [kea-dhcp4.hosts/25980] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:17:10.473 INFO  [kea-dhcp4.dhcpsrv/25980] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:17:10.473 INFO  [kea-dhcp4.dhcpsrv/25980] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:17:10.475 INFO  [kea-dhcp4.dhcpsrv/25980] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:17:10.477 INFO  [kea-dhcp4.lease-cmds-hooks/25980] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:17:10.477 INFO  [kea-dhcp4.hooks/25980] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:17:10.477 INFO  [kea-dhcp4.dhcp4/25980] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:17:10.477 INFO  [kea-dhcp4.dhcpsrv/25980] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:17:10.478 INFO  [kea-dhcp4.dhcpsrv/25980] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:17:10.480 INFO  [kea-dhcp4.dhcpsrv/25980] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:17:10.487 INFO  [kea-dhcp4.dhcp4/25980] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:17:11.401 INFO  [kea-dhcp4.commands/25980] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:17:26.669 INFO  [kea-dhcp4.leases/25980] DHCP4_LEASE_ADVERT [hwtype=1 1c:39:47:d1:b4:3b], cid=[01:1c:39:47:d1:b4:3b], tid=0x97332a97: lease 10.100.5.43 will be advertised
2019-09-02 12:17:27.287 INFO  [kea-dhcp4.leases/25980] DHCP4_LEASE_ADVERT [hwtype=1 1c:39:47:d1:b4:3b], cid=[01:1c:39:47:d1:b4:3b], tid=0xe8ab164d: lease 10.100.5.44 will be advertised
2019-09-02 12:17:27.297 INFO  [kea-dhcp4.leases/25980] DHCP4_LEASE_ALLOC [hwtype=1 1c:39:47:d1:b4:3b], cid=[01:1c:39:47:d1:b4:3b], tid=0xe8ab164d: lease 10.100.5.44 has been allocated
2019-09-02 12:19:12.094 INFO  [kea-dhcp4.dhcp4/25980] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:19:12.101 INFO  [kea-dhcp4.lease-cmds-hooks/25980] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:19:12.101 INFO  [kea-dhcp4.hooks/25980] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:19:12.842 INFO  [kea-dhcp4.hosts/26469] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:19:12.844 INFO  [kea-dhcp4.dhcpsrv/26469] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:19:12.844 INFO  [kea-dhcp4.dhcpsrv/26469] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:19:12.846 INFO  [kea-dhcp4.dhcpsrv/26469] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:19:12.848 INFO  [kea-dhcp4.lease-cmds-hooks/26469] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:19:12.848 INFO  [kea-dhcp4.hooks/26469] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:19:12.848 INFO  [kea-dhcp4.dhcp4/26469] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:19:12.848 INFO  [kea-dhcp4.dhcpsrv/26469] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:19:12.849 INFO  [kea-dhcp4.dhcpsrv/26469] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:19:12.851 INFO  [kea-dhcp4.dhcpsrv/26469] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:19:12.856 INFO  [kea-dhcp4.dhcp4/26469] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:19:13.780 INFO  [kea-dhcp4.commands/26469] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:21:14.477 INFO  [kea-dhcp4.dhcp4/26469] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:21:14.483 INFO  [kea-dhcp4.lease-cmds-hooks/26469] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:21:14.483 INFO  [kea-dhcp4.hooks/26469] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:21:15.245 INFO  [kea-dhcp4.hosts/26884] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:21:15.247 INFO  [kea-dhcp4.dhcpsrv/26884] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:21:15.247 INFO  [kea-dhcp4.dhcpsrv/26884] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:21:15.249 INFO  [kea-dhcp4.dhcpsrv/26884] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:21:15.251 INFO  [kea-dhcp4.lease-cmds-hooks/26884] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:21:15.251 INFO  [kea-dhcp4.hooks/26884] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:21:15.251 INFO  [kea-dhcp4.dhcp4/26884] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:21:15.251 INFO  [kea-dhcp4.dhcpsrv/26884] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:21:15.251 INFO  [kea-dhcp4.dhcpsrv/26884] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:21:15.254 INFO  [kea-dhcp4.dhcpsrv/26884] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:21:15.258 INFO  [kea-dhcp4.dhcp4/26884] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:21:16.174 INFO  [kea-dhcp4.commands/26884] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:23:16.863 INFO  [kea-dhcp4.dhcp4/26884] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:23:16.868 INFO  [kea-dhcp4.lease-cmds-hooks/26884] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:23:16.868 INFO  [kea-dhcp4.hooks/26884] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:23:17.619 INFO  [kea-dhcp4.hosts/27313] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:23:17.621 INFO  [kea-dhcp4.dhcpsrv/27313] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:23:17.621 INFO  [kea-dhcp4.dhcpsrv/27313] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:23:17.623 INFO  [kea-dhcp4.dhcpsrv/27313] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:23:17.626 INFO  [kea-dhcp4.lease-cmds-hooks/27313] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:23:17.626 INFO  [kea-dhcp4.hooks/27313] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:23:17.626 INFO  [kea-dhcp4.dhcp4/27313] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:23:17.626 INFO  [kea-dhcp4.dhcpsrv/27313] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:23:17.627 INFO  [kea-dhcp4.dhcpsrv/27313] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:23:17.629 INFO  [kea-dhcp4.dhcpsrv/27313] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:23:17.636 INFO  [kea-dhcp4.dhcp4/27313] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:23:18.557 INFO  [kea-dhcp4.commands/27313] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:25:19.234 INFO  [kea-dhcp4.dhcp4/27313] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:25:19.240 INFO  [kea-dhcp4.lease-cmds-hooks/27313] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:25:19.240 INFO  [kea-dhcp4.hooks/27313] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:25:19.983 INFO  [kea-dhcp4.hosts/27727] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:25:19.984 INFO  [kea-dhcp4.dhcpsrv/27727] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:25:19.984 INFO  [kea-dhcp4.dhcpsrv/27727] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:25:19.986 INFO  [kea-dhcp4.dhcpsrv/27727] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:25:19.988 INFO  [kea-dhcp4.lease-cmds-hooks/27727] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:25:19.988 INFO  [kea-dhcp4.hooks/27727] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:25:19.988 INFO  [kea-dhcp4.dhcp4/27727] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:25:19.989 INFO  [kea-dhcp4.dhcpsrv/27727] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:25:19.989 INFO  [kea-dhcp4.dhcpsrv/27727] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:25:19.991 INFO  [kea-dhcp4.dhcpsrv/27727] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:25:19.999 INFO  [kea-dhcp4.dhcp4/27727] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:25:20.928 INFO  [kea-dhcp4.commands/27727] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:27:21.609 INFO  [kea-dhcp4.dhcp4/27727] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:27:21.614 INFO  [kea-dhcp4.lease-cmds-hooks/27727] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:27:21.614 INFO  [kea-dhcp4.hooks/27727] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:27:22.354 INFO  [kea-dhcp4.hosts/28146] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:27:22.356 INFO  [kea-dhcp4.dhcpsrv/28146] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:27:22.356 INFO  [kea-dhcp4.dhcpsrv/28146] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:27:22.358 INFO  [kea-dhcp4.dhcpsrv/28146] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:27:22.360 INFO  [kea-dhcp4.lease-cmds-hooks/28146] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:27:22.360 INFO  [kea-dhcp4.hooks/28146] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:27:22.360 INFO  [kea-dhcp4.dhcp4/28146] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:27:22.360 INFO  [kea-dhcp4.dhcpsrv/28146] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:27:22.360 INFO  [kea-dhcp4.dhcpsrv/28146] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:27:22.363 INFO  [kea-dhcp4.dhcpsrv/28146] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:27:22.368 INFO  [kea-dhcp4.dhcp4/28146] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:27:23.283 INFO  [kea-dhcp4.commands/28146] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:29:23.968 INFO  [kea-dhcp4.dhcp4/28146] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:29:24.144 INFO  [kea-dhcp4.lease-cmds-hooks/28146] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:29:24.144 INFO  [kea-dhcp4.hooks/28146] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:29:24.903 INFO  [kea-dhcp4.hosts/28567] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:29:24.905 INFO  [kea-dhcp4.dhcpsrv/28567] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:29:24.905 INFO  [kea-dhcp4.dhcpsrv/28567] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:29:24.907 INFO  [kea-dhcp4.dhcpsrv/28567] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:29:24.909 INFO  [kea-dhcp4.lease-cmds-hooks/28567] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:29:24.909 INFO  [kea-dhcp4.hooks/28567] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:29:24.910 INFO  [kea-dhcp4.dhcp4/28567] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:29:24.910 INFO  [kea-dhcp4.dhcpsrv/28567] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:29:24.910 INFO  [kea-dhcp4.dhcpsrv/28567] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:29:24.913 INFO  [kea-dhcp4.dhcpsrv/28567] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:29:24.920 INFO  [kea-dhcp4.dhcp4/28567] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:29:25.837 INFO  [kea-dhcp4.commands/28567] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:31:26.542 INFO  [kea-dhcp4.dhcp4/28567] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:31:26.547 INFO  [kea-dhcp4.lease-cmds-hooks/28567] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:31:26.547 INFO  [kea-dhcp4.hooks/28567] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:31:27.280 INFO  [kea-dhcp4.hosts/28987] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:31:27.282 INFO  [kea-dhcp4.dhcpsrv/28987] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:31:27.282 INFO  [kea-dhcp4.dhcpsrv/28987] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:31:27.284 INFO  [kea-dhcp4.dhcpsrv/28987] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:31:27.286 INFO  [kea-dhcp4.lease-cmds-hooks/28987] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:31:27.286 INFO  [kea-dhcp4.hooks/28987] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:31:27.286 INFO  [kea-dhcp4.dhcp4/28987] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:31:27.286 INFO  [kea-dhcp4.dhcpsrv/28987] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:31:27.286 INFO  [kea-dhcp4.dhcpsrv/28987] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:31:27.289 INFO  [kea-dhcp4.dhcpsrv/28987] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:31:27.293 INFO  [kea-dhcp4.dhcp4/28987] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:31:28.219 INFO  [kea-dhcp4.commands/28987] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:33:28.944 INFO  [kea-dhcp4.dhcp4/28987] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:33:28.951 INFO  [kea-dhcp4.lease-cmds-hooks/28987] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:33:28.951 INFO  [kea-dhcp4.hooks/28987] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:33:29.694 INFO  [kea-dhcp4.hosts/29426] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:33:29.696 INFO  [kea-dhcp4.dhcpsrv/29426] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:33:29.696 INFO  [kea-dhcp4.dhcpsrv/29426] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:33:29.698 INFO  [kea-dhcp4.dhcpsrv/29426] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:33:29.700 INFO  [kea-dhcp4.lease-cmds-hooks/29426] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:33:29.700 INFO  [kea-dhcp4.hooks/29426] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:33:29.700 INFO  [kea-dhcp4.dhcp4/29426] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:33:29.700 INFO  [kea-dhcp4.dhcpsrv/29426] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:33:29.700 INFO  [kea-dhcp4.dhcpsrv/29426] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:33:29.703 INFO  [kea-dhcp4.dhcpsrv/29426] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:33:29.708 INFO  [kea-dhcp4.dhcp4/29426] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:33:30.636 INFO  [kea-dhcp4.commands/29426] COMMAND_RECEIVED Received command 'list-commands'
2019-09-02 12:37:01.339 INFO  [kea-dhcp4.dhcp4/29426] DHCP4_SHUTDOWN server shutdown
2019-09-02 12:37:01.345 INFO  [kea-dhcp4.lease-cmds-hooks/29426] LEASE_CMDS_DEINIT_OK unloading Lease Commands hooks library successful
2019-09-02 12:37:01.345 INFO  [kea-dhcp4.hooks/29426] HOOKS_LIBRARY_UNLOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully unloaded
2019-09-02 12:37:02.083 INFO  [kea-dhcp4.hosts/30112] HOSTS_BACKENDS_REGISTERED the following host backend types are available: 
2019-09-02 12:37:02.085 INFO  [kea-dhcp4.dhcpsrv/30112] DHCPSRV_CFGMGR_USE_ADDRESS listening on address 10.100.5.1, on interface dh00000008
2019-09-02 12:37:02.085 INFO  [kea-dhcp4.dhcpsrv/30112] DHCPSRV_CFGMGR_SOCKET_TYPE_DEFAULT "dhcp-socket-type" not specified , using default socket type raw
2019-09-02 12:37:02.087 INFO  [kea-dhcp4.dhcpsrv/30112] DHCPSRV_CFGMGR_NEW_SUBNET4 a new subnet has been added to configuration: 10.100.5.1/24 with params: valid-lifetime=43200
2019-09-02 12:37:02.089 INFO  [kea-dhcp4.lease-cmds-hooks/30112] LEASE_CMDS_INIT_OK loading Lease Commands hooks library successful
2019-09-02 12:37:02.089 INFO  [kea-dhcp4.hooks/30112] HOOKS_LIBRARY_LOADED hooks library /usr/lib64/kea/hooks/libdhcp_lease_cmds.so successfully loaded
2019-09-02 12:37:02.089 INFO  [kea-dhcp4.dhcp4/30112] DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added IPv4 subnets: 1; DDNS: disabled
2019-09-02 12:37:02.089 INFO  [kea-dhcp4.dhcpsrv/30112] DHCPSRV_MEMFILE_DB opening memory file lease database: name=/var/lib/128technology/dhcp/server/8/dhcp4.lease type=memfile universe=4
2019-09-02 12:37:02.089 INFO  [kea-dhcp4.dhcpsrv/30112] DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file /var/lib/128technology/dhcp/server/8/dhcp4.lease
2019-09-02 12:37:02.092 INFO  [kea-dhcp4.dhcpsrv/30112] DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to 3600 sec
2019-09-02 12:37:02.098 INFO  [kea-dhcp4.dhcp4/30112] DHCP4_STARTED Kea DHCPv4 server version 1.4.0 started
2019-09-02 12:37:03.025 INFO  [kea-dhcp4.commands/30112] COMMAND_RECEIVED Received command 'list-commands'


    However, after looking deeper, it seems like the device stops leasing addresses. After looking in /var/lib/128technology/dhcp/server/*/ - I see that the DHCP allocation table is stored in a dhcp4.lease file which 128T then references to read and write leases to. 

    The DHCP service did not successfully lease any IPs (even after systemctl restart 128T and hard reboot), until I manually deleted this dhcp4.lease table and restarted the software. 

    My question is, is this a known issue, or am I troubleshooting DHCP incorrectly? If so, please let me know what the proper troubleshooting steps are.

    Regards,

    ------------------------------
    Morne Vermeulen
    Core Engineer
    +27 (0) 10 141 8512
    ------------------------------


  • 2.  RE: Troubleshooting DHCP Server on 128T

    Posted 09-03-2019 19:37
    Hi Morne,

    Thank you for bringing this to our attention. There are two known issues that you could be hitting that are resolved in the upcoming 4.2.0 release but not in the current 4.1.x releases. One of them is very similar to what you describe, where the script monitoring the DHCP server keeps restarting the server erroneously, even though the server is operating correctly. When this is happening the DHCP leases should still be allocated to the clients except for the window while the server is being restarted (approximately several seconds). The second issue that we have seen in 4.1.x is that there are residual .pid and .lock files that become corrupted which occasionally occurs after an abrupt shutdown. This results in a failure to start the server and it requires manually cleaning these files, which are located in /var/log/128technology/dhcp/server/*/. As I mentioned earlier, we identify and correct this issue in the upcoming 4.2.0 release.

    I have not seen the issue you describe where the lease database itself is corrupted. Did you happen to save a backup of the file before deleting it by any chance? If so I would love if you could file a support ticket and attach the file and I'll take a look right away. If the corruption is detectable we can build in a mechanism to automatically clean it up. I don't see anything obvious in the logs you posted although it could just be failing silently.

    Evan

    ------------------------------
    Evan Carson
    Software Engineer
    MA
    ------------------------------

    Original Message