Есть два девайса с кваггой (роутер с OpenWRT и сервер с дебияном). Между ними прямая Ethernet связность, потерь пакетов нет, настроен OSPF.
В логи постоянно валится:
2015/05/26 07:02:28 OSPF: AdjChg: Nbr 192.168.22.3 on eth0.3:192.168.253.2: Full -> ExStart (SeqNumberMismatch)
2015/05/26 07:02:28 OSPF: nsm_change_state(192.168.22.3, Full -> ExStart): scheduling new router-LSA origination
2015/05/26 07:02:33 OSPF: Packet[DD]: Neighbor 192.168.22.3 Negotiation done (Slave).
2015/05/26 07:02:33 OSPF: AdjChg: Nbr 192.168.22.3 on eth0.3:192.168.253.2: Loading -> Full (LoadingDone)
2015/05/26 07:02:33 OSPF: nsm_change_state(192.168.22.3, Loading -> Full): scheduling new router-LSA origination
2015/05/26 07:13:08 OSPF: AdjChg: Nbr 192.168.22.3 on eth0.3:192.168.253.2: Full -> ExStart (SeqNumberMismatch)
2015/05/26 07:13:08 OSPF: nsm_change_state(192.168.22.3, Full -> ExStart): scheduling new router-LSA origination
2015/05/26 07:13:13 OSPF: Packet[DD]: Neighbor 192.168.22.3 Negotiation done (Slave).
2015/05/26 07:13:13 OSPF: AdjChg: Nbr 192.168.22.3 on eth0.3:192.168.253.2: Loading -> Full (LoadingDone)
2015/05/26 07:13:13 OSPF: nsm_change_state(192.168.22.3, Loading -> Full): scheduling new router-LSA origination
2015/05/26 08:05:59 OSPF: AdjChg: Nbr 192.168.22.3 on eth0.3:192.168.253.2: Full -> ExStart (SeqNumberMismatch)
2015/05/26 08:05:59 OSPF: nsm_change_state(192.168.22.3, Full -> ExStart): scheduling new router-LSA origination
2015/05/26 08:06:04 OSPF: Packet[DD]: Neighbor 192.168.22.3 Negotiation done (Slave).
2015/05/26 08:06:04 OSPF: AdjChg: Nbr 192.168.22.3 on eth0.3:192.168.253.2: Loading -> Full (LoadingDone)
2015/05/26 08:06:04 OSPF: nsm_change_state(192.168.22.3, Loading -> Full): scheduling new router-LSA origination
2015/05/26 08:40:59 OSPF: AdjChg: Nbr 192.168.22.3 on eth0.3:192.168.253.2: Full -> ExStart (SeqNumberMismatch)
2015/05/26 08:40:59 OSPF: nsm_change_state(192.168.22.3, Full -> ExStart): scheduling new router-LSA origination
2015/05/26 08:41:04 OSPF: Packet[DD]: Neighbor 192.168.22.3 Negotiation done (Slave).
2015/05/26 08:41:04 OSPF: AdjChg: Nbr 192.168.22.3 on eth0.3:192.168.253.2: Loading -> Full (LoadingDone)
2015/05/26 08:41:04 OSPF: nsm_change_state(192.168.22.3, Loading -> Full): scheduling new router-LSA origination
На дебияне штатная версия 0.99.22.4-1+wheezy1, на опенврт - 0.99.22.3-1
Конфиги простейшие:
interface eth0.3
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 xxx
ip ospf hello-interval 10
ip ospf dead-interval 20
ip ospf priority 100
ip ospf cost 1
ip ospf network broadcast
router ospf
log-adjacency-changes
ospf router-id 192.168.22.3
network 192.168.22.0/24 area 22
network 192.168.253.0/24 area 0
area 22 stub
area 0 authentication message-digest
Куда бежать? Причем помимо этого роутера ещё есть их штук 5 к этому серверу подрубленных (правда уже по OpenVPN TAP), многие с более древней кваггой 0.99.21-6, проблем с ними нет.