RE: Not able to ping loopback interface

Thanks Piotr, you are right. I check the OSPF config and it seems to work now.
But, the loopback0 is not working now :(-

!
router ospf 24 vrf R2_VRF_24
 log-adjacency-changes
 network 150.1.24.2 0.0.0.0 area 0
 network 150.1.124.2 0.0.0.0 area 0
!
router ospf 42 vrf R2_VRF_42
 network 150.1.42.2 0.0.0.0 area 0
 network 150.1.142.2 0.0.0.0 area 0
!
router ospf 1
 network 150.1.2.2 0.0.0.0 area 0
!

The R4 Loopback0 (150.1.4.4, on the other side) is not in any VRF.

R2#ping 150.1.4.4

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 150.1.4.4, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

-Yuri

> Date: Tue, 6 Oct 2009 21:38:48 +0200
> Subject: Re: Not able to ping loopback interface
> From: piotr_at_ccie1.com
> To: ebay_products_at_hotmail.com
> CC: ccielab_at_groupstudy.com
>
> Hi,
>
> You should have VRF aware OSPF configured. Take a look at your example
> and check if you have OSPF neighbor relationship established. I bet
> you don't.
>
>
> R2:
> no router ospf 1
> router ospf 1 vrf R2_VRF_24
> network 150.1.24.2 0.0.0.0 area 0
> network 150.1.124.2 0.0.0.0 area 0
> router ospf 2 vrf R2_VRF_42
> network 150.1.42.2 0.0.0.0 area 0
> network 150.1.142.2 0.0.0.0 area 0
>
>
>
> R4:
> no router ospf 1
> router ospf 1 vrf R4_VRF_24
> network 150.1.24.4 0.0.0.0 area 0
> network 150.1.124.4 0.0.0.0 area 0
> router ospf 2 vrf R4_VRF_42
> network 150.1.42.4 0.0.0.0 area 0
> network 150.1.142.4 0.0.0.0 area 0
>
>
> HTH,
>
> --
> Piotr Matusiak
> CCIE #19860 (R&S, SEC)
>
>
>
> 2009/10/6 Cisco Fanatic <ebay_products_at_hotmail.com>:
> > All, I have configured MPLS VRF on the interfaces. But, I am not able to
ping
> > the loopback interfaces. Can someone let me know as why? Am I missing
> > something here.
> >
> > Thanks,
> > -Yuri
> >
> > R2
> > ++
> > !
> > mpls label protocol ldp
> > !
> > ip vrf R2_VRF_24
> > rd 24:24
> > !
> > ip vrf R2_VRF_42
> > rd 42:42
> > !
> > interface Loopback0
> > ip address 150.1.2.2 255.255.255.255
> > !
> > interface Loopback24
> > ip vrf forwarding R2_VRF_24
> > ip address 150.1.124.2 255.255.255.255
> > !
> > interface Loopback42
> > ip vrf forwarding R2_VRF_42
> > ip address 150.1.142.2 255.255.255.255
> > !
> > interface Ethernet0/0
> > ip address 150.1.24.2 255.255.255.0
> > mpls ip
> > !
> > interface Ethernet0/0.24
> > encapsulation dot1Q 24
> > ip vrf forwarding R2_VRF_24
> > ip address 150.1.24.2 255.255.255.0
> > !
> > interface Ethernet0/0.42
> > encapsulation dot1Q 42
> > ip vrf forwarding R2_VRF_42
> > ip address 150.1.42.2 255.255.255.0
> > !
> > router ospf 1
> > log-adjacency-changes
> > network 150.1.2.2 0.0.0.0 area 0
> > network 150.1.24.2 0.0.0.0 area 0
> > network 150.1.124.2 0.0.0.0 area 0
> > network 150.1.142.2 0.0.0.0 area 0
> > !
> >
> > R4
> > ++
> > !
> > mpls label protocol ldp
> > !
> > ip vrf R4_VRF_24
> > rd 24:24
> > !
> > ip vrf R4_VRF_42
> > rd 42:42
> > !
> > interface Loopback0
> > ip address 150.1.4.4 255.255.255.255
> > !
> > interface Loopback24
> > ip vrf forwarding R4_VRF_24
> > ip address 150.1.124.4 255.255.255.255
> > !
> > interface Loopback42
> > ip vrf forwarding R4_VRF_42
> > ip address 150.1.142.4 255.255.255.255
> > !
> > interface Ethernet0/0
> > no ip address
> > mpls ip
> > !
> > interface Ethernet0/0.24
> > encapsulation dot1Q 24
> > ip vrf forwarding R4_VRF_24
> > ip address 150.1.24.4 255.255.255.0
> > !
> > interface Ethernet0/0.42
> > encapsulation dot1Q 42
> > ip vrf forwarding R4_VRF_42
> > ip address 150.1.42.4 255.255.255.0
> > !
> > router ospf 1
> > log-adjacency-changes
> > network 150.1.4.4 0.0.0.0 area 0
> > network 150.1.24.4 0.0.0.0 area 0
> > network 150.1.45.4 0.0.0.0 area 0
> > network 150.1.124.4 0.0.0.0 area 0
> > network 150.1.142.4 0.0.0.0 area 0
> > !
> >
> > Success rate is 0 percent (0/5)
> > R2#ping vrf R2_VRF_24 150.1.24.4
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 150.1.24.4, timeout is 2 seconds:
> > .!!!!
> > Success rate is 80 percent (4/5), round-trip min/avg/max = 1/1/4 ms
> >
> > R2#ping vrf R2_VRF_42 150.1.42.4
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 150.1.42.4, timeout is 2 seconds:
> > .!!!!
> > Success rate is 80 percent (4/5), round-trip min/avg/max = 1/1/4 ms
> >
> > R2#ping vrf R2_VRF_24 150.1.124.4 <--
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 150.1.124.4, timeout is 2 seconds:
> > .....
> >
> > R2#sh ip vrf int
> > Interface IP-Address VRF
> > Protocol
> > Lo24 150.1.124.2 R2_VRF_24
up
> > Et0/0.24 150.1.24.2 R2_VRF_24
up
> > Lo42 150.1.142.2 R2_VRF_42
up
> > Et0/0.42 150.1.42.2 R2_VRF_42
up
> >
> > R4#sh ip vrf int
> > Interface IP-Address VRF
> > Protocol
> > Lo24 150.1.124.4 R4_VRF_24
up
> > Et0/0.24 150.1.24.4 R4_VRF_24
up
> > Lo42 150.1.142.4 R4_VRF_42
up
> > Et0/0.42 150.1.42.4 R4_VRF_42
up
> >
> >
> >
> >
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Received on Tue Oct 06 2009 - 13:15:32 ART