From: Sean C (Upp_and_Upp@hotmail.com)
Date: Sat Apr 30 2005 - 22:44:12 GMT-3
Frank, you lost me:
In you 3rd paragraph, you end with - "From R3 I can ping R1." and then the
next statement is "The problem is I cannot ping R1 from R3 or R3 from R1?"
I'll assume R1 and R3 aren't talking.
3 things:
-have you done a trace route? Does the R1 originated packet at least get to
R2 when trying to ping R3? Are all prefixes in the OSPF topology?
-what if you change your network commands to the true interface mask. IOW,
instead of "network 1.1.1.1 0.0.0.0 area 0" you use "network 1.1.1.0
0.0.0.255 area 0"?
-all 'show' commands are good - OSPF neighbor, virtual-link, etc...
If you really want to troubleshoot, I'd strip the issue down to the core and
build from there. Take the virtual-template out of the equation, take the
virtual-link out of the equation (put everyone in area 0). Then start
adding complexity. But the virtual-template in place, but leave everyone in
area 0. Or, build the virtual link in place, but don't use PPP over frame.
Off the top of my head, I don't see a simple issue (like it's a given that
you won't be able to ping your own interface on a virtual-template), not
sure what it is.
Good luck and HTH,
Sean
----- Original Message -----
From: "Frank Center" <ccahoon@maine.rr.com>
To: "Cisco certification" <ccielab@groupstudy.com>
Sent: Saturday, April 30, 2005 6:26 PM
Subject: Problem with a Virtual-Link
>I have a problem with an OSPF,
>
>
>
> I have configured a frame-relay PPP using a sub-interface and
> Virtual-Template
> between two routers. R1 & R2, the R1 routers is attached to area 0. R2 is
> not
> in area 0 and has a connection to R3. The area between R2 & R3 is a stub
> area.
> I configured a virtual-link between R1 & R2, I've attcahed the
> configuration
> below.
>
>
>
> I can ping between the R1 & R2 over the frame-relay and from R2 I can ping
> all
> the IP's on both R1 & R3. From R3 I can ping R1.
>
>
>
> The problem is I cannot ping R1 from R3 or R3 from R1?
>
>
>
> In my troubleshooting I removed the stub but this did not help. I think my
> problem is with my virtual-link over the PPP but I've tried everything
> that I
> can thing of. Any suggestions?
>
>
>
> R1
> interface Serial0/1
> no ip address
> encapsulation frame-relay
> no frame-relay inverse-arp
> !
> interface Serial0/1.1 point-to-point
> frame-relay interface-dlci 112 ppp Virtual-Template1
> !
> interface Virtual-Template1
> ip address 20.20.20.1 255.255.255.0
> !
> router ospf 1
> router-id 1.1.1.1
> area 15 virtual-link 2.2.2.2
> network 1.1.1.1 0.0.0.0 area 0
> network 10.10.10.2 0.0.0.0 area 0
> network 20.20.20.1. 0.0.0.0 area 15
>
>
>
> (On R1 I have loopback 0 configured 1.1.1.1 and my E0 is connected to the
> backbone in area 0 ip 10.10.10.1)
>
>
>
> R2
> interface Serial1/1
> no ip address
> encapsulation frame-relay
> no frame-relay inverse-arp
> !
> interface Serial1/1.1 point-to-point
> frame-relay interface-dlci 211 ppp Virtual-Template1
> !
> interface Virtual-Template1
> ip address 20.20.20.2 255.255.255.0
> ip ospf priority 0
> !
> interface FastEthernet0/0
> ip address 30.30.30.2 255.255.255.0
> !
> router ospf 1
> router-id 2.2.2.2
> area 15 virtual-link 1.1.1.1
> area 16 stub no-summary
> network 2.2.2.2 0.0.0.0 area 15
> network 20.20.20.2 0.0.0.0 area 15
> network 30.30.30.2 0.0.0.0 area 16
>
>
>
> (On R2 I have loopback 0 configured 2.2.2.2)
>
>
>
> R3
> interface Vlan15
> ip address 30.30.30.3 255.255.255.0
> !
> router ospf 1
> router-id 3.3.3.3
> area 16 stub
> network 3.3.3.3 0.0.0.0 area 16
> network 30.30.30.3 0.0.0.0 area 16
>
>
>
> (On R3 I have loopback 0 configured 3.3.3.3)
>
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