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yuening liao
Beginner

Ospf in VRF

Hi,

i met a very strange phenomena: R1(CE)---OSPF--R2(PE)

they can see routes each other, but CE can't ping the PE routes in its routing table

R1#sh ip ro

     1.0.0.0/32 is subnetted, 1 subnets
C       1.1.1.1 is directly connected, Loopback0
     2.0.0.0/32 is subnetted, 1 subnets
O       2.2.2.2 [110/2] via 12.0.0.2, 00:01:56, FastEthernet0/0
     12.0.0.0/24 is subnetted, 1 subnets
C       12.0.0.0 is directly connected, FastEthernet0/0
R1#


R2(config-if)#do sh ip ro vrf vpn

     1.0.0.0/32 is subnetted, 1 subnets
O       1.1.1.1 [110/2] via 12.0.0.1, 00:00:00, FastEthernet0/0
     2.0.0.0/32 is subnetted, 1 subnets
C       2.2.2.2 is directly connected, Loopback0
     12.0.0.0/24 is subnetted, 1 subnets
C       12.0.0.0 is directly connected, FastEthernet0/0
R2(config-if)#

R1#p 2.2.2.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
R1#

no special configuration to block the traffic ever made?

anybody knows why?

thanks in advance!

4 REPLIES 4

hi ,

Can you confirm the ospf network is point to point under loopback interface in both the routers , if not then make and try to ping

Sent from Cisco Technical Support iPhone App

Yasir Ashfaque
Beginner

Hi,

can you ping 12.0.0.2 from R1, and 12.0.0.1 from R2, ospf routes seem to be normal to me, there could be some filtering or L2 issue, please show us the output of following commands:

on both R1,R2:

show run int f0/0

shivjain
Cisco Employee

Could be icmp replies are blocked. Can u debug and post the details.

Sent from Cisco Technical Support iPhone App

Kishore Chennupati
Rising star

Hi,

Are you trying this on GNS3 or production network? Because if its in GNS3 then I noticed similar issues. the simulators sometimes

dont work they should

Regards