04-26-2019 12:22 PM - edited 04-26-2019 12:23 PM
Hi,
I've configured a VPN tunnel between two routers via a third, but am having some trouble using the tunnel.
In this scenario I have two sites connecting via a VPN through a third router acting as an ISP, however when issuing a traceroute it comes up as having passed through the ISP router. Would I be correct in thinking that a functioning tunnel would not show this middle step in the traceroute? This makes me think the tunnel is not being used and it is just using OSPF which I'd already set up between the three routers.
If anyone could help fix this, I'd be very grateful!
Here are the configurations for the three routers:
Site1:
interface Tunnel0
ip address 172.16.12.1 255.255.255.252
mtu 1476
tunnel source Serial0/0/0
tunnel destination 10.5.5.1
!
!
interface GigabitEthernet0/0
ip address 10.1.1.2 255.255.255.252
duplex auto
speed auto
!
interface GigabitEthernet0/1
ip address 10.1.2.2 255.255.255.252
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
ip address 198.222.123.17 255.255.255.240
clock rate 128000
!
interface Serial0/0/1
no ip address
clock rate 2000000
shutdown
!
interface Vlan1
no ip address
shutdown
!
router ospf 1
log-adjacency-changes
network 10.1.1.0 0.0.0.3 area 0
network 198.222.123.16 0.0.0.15 area 0
!
ip classless
ip route 0.0.0.0 0.0.0.0 198.222.123.18
!
ISP:
interface Loopback0
ip address 209.165.200.225 255.255.255.224
!
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
shutdown
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
ip address 198.222.123.18 255.255.255.240
!
interface Serial0/0/1
ip address 10.5.5.2 255.255.255.252
clock rate 2000000
!
interface Vlan1
no ip address
shutdown
!
router ospf 1
log-adjacency-changes
network 198.222.123.16 0.0.0.15 area 0
network 10.5.5.0 0.0.0.3 area 0
!
ip classless
ip route 0.0.0.0 0.0.0.0 Loopback0
!
Site 2:
interface Tunnel0
ip address 172.16.12.2 255.255.255.252
mtu 1476
tunnel source Serial0/0/1
tunnel destination 198.222.123.17
!
!
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
shutdown
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
no ip address
clock rate 2000000
shutdown
!
interface Serial0/0/1
ip address 10.5.5.1 255.255.255.252
!
interface Vlan1
no ip address
shutdown
!
router ospf 1
log-adjacency-changes
network 10.5.5.0 0.0.0.3 area 0
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.5.5.2
!
I'm fairly new to this, so I appreciate you taking the time to help.
-Stuart
Solved! Go to Solution.
04-26-2019 12:54 PM
04-26-2019 12:54 PM
Did you ping 172.16.12.2 source 172.16.12.1?
Thanks.
04-26-2019 12:58 PM
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