06-15-2020 09:08 AM - edited 06-15-2020 09:11 AM
Hey everyone,
In this lab I'm trying to run OSPF over a DMVPN tunnel but the routers won't become neighbours.
R1#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 2.2.2.2 0 INIT/ - 00:00:32 172.16.0.2 Tunnel0 R1#sh crypto isakmp sa IPv4 Crypto ISAKMP SA dst src state conn-id status 192.168.0.2 192.168.0.6 QM_IDLE 1018 ACTIVE 192.168.0.2 192.168.0.6 MM_NO_STATE 1017 ACTIVE (deleted) *Jun 15 23:39:00.867: OSPF-1 PAK : Tu0: OUT: 172.16.0.1->224.0.0.5: ver:2 type:1 len:48 rid:1.1.1.1 area:0.0.0.0 chksum:E694 auth:0 R1# *Jun 15 23:39:06.768: OSPF-1 PAK : Tu0: IN: 172.16.0.2->224.0.0.5: ver:2 type:1 len:44 rid:2.2.2.2 area:0.0.0.0 chksum:E89A auth:0
zR2#sh ip ospf neighbor R2# R2#sh crypto isakmp sa IPv4 Crypto ISAKMP SA dst src state conn-id status 192.168.0.2 192.168.0.6 QM_IDLE 1018 ACTIVE *Jun 15 23:46:05.472: OSPF-1 PAK : Tu0: OUT: 172.16.0.2->224.0.0.5: ver:2 type:1 len:44 rid:2.2.2.2 area:0.0.0.0 chksum:E89A auth:0 R2# *Jun 15 23:46:15.515: OSPF-1 PAK : Tu0: OUT: 172.16.0.2->224.0.0.5: ver:2 type:1 len:44 rid:2.2.2.2 area:0.0.0.0 chksum:E89A auth:0 R2# *Jun 15 23:46:24.868: OSPF-1 PAK : Tu0: OUT: 172.16.0.2->224.0.0.5: ver:2 type:1 len:44 rid:2.2.2.2 area:0.0.0.0 chksum:E89A auth:0
Anyone can tell me what I'm doing wrong?
Here is the confirmation on R1 and R2.
!--- R1 Config --- interface Loopback0 ip address 1.1.1.1 255.255.255.0 ! interface Tunnel0 ip address 172.16.0.1 255.255.255.0 no ip redirects ip nhrp authentication cisco ip nhrp map multicast dynamic ip nhrp network-id 1 ip nhrp holdtime 300 tunnel source Ethernet0/0 tunnel mode gre multipoint tunnel key 100000 tunnel protection ipsec profile offices ! interface Ethernet0/0 description ISP ip address 192.168.0.2 255.255.255.252 ! router ospf 1 network 1.1.1.0 0.0.0.255 area 0 network 172.16.0.0 0.0.0.255 area 0 !
!--- R2 Config --- interface Loopback0 ip address 2.2.2.2 255.255.255.0 ! interface Tunnel0 ip address 172.16.0.2 255.255.255.0 no ip redirects ip nhrp authentication cisco ip nhrp map multicast 192.168.0.2 ip nhrp map 172.16.0.1 192.168.0.2 ip nhrp network-id 1 ip nhrp holdtime 300 ip nhrp nhs 192.16.0.1 tunnel source Ethernet0/0 tunnel mode gre multipoint tunnel key 100000 tunnel protection ipsec profile offices ! interface Ethernet0/0 ip address 192.168.0.6 255.255.255.252 ! router ospf 1 network 2.2.2.0 0.0.0.255 area 0 network 172.16.0.0 0.0.0.255 area 0 !
Thank you!
Solved! Go to Solution.
06-16-2020 12:03 AM - edited 06-16-2020 12:05 AM
Hi,
May I know, why R2 configured with "ip nhrp nhs 192.16.0.1"?
Also, the OSPF area type makes it broadcast under all tunnel interfaces.
06-16-2020 12:03 AM - edited 06-16-2020 12:05 AM
Hi,
May I know, why R2 configured with "ip nhrp nhs 192.16.0.1"?
Also, the OSPF area type makes it broadcast under all tunnel interfaces.
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