From: Radoslav Vasilev (deckland@gmail.com)
Date: Tue Oct 17 2006 - 18:21:01 ART
Hi,
By the way - I have done this scenario with two separate
virtual-templates with the same addresses. I know - it's weird but
works with some IOSes. The other solution that you should try is to
use ip unnumbered, but then you need to keep the neighbor peer route.
Rado
On 10/16/06, Danny Cox <dandermanuk@gmail.com> wrote:
> I'm most of the way through a lab which uses virtual-templates over the
> frame relay, so we have R1, R2, R5 with R5 as the hub in a hub and spoke
> setup.
>
> R5 has a circuit to each of R1 and R2 - DLCIs are 501 and 502 respectively.
> In order to use a single IP address on R5, we need to use a single virtual
> template for both the DLCIs, so something like:
>
> interface Serial0/0
> no ip address
> encapsulation frame-relay
> no frame-relay inverse-arp
> !
> interface Serial0/0.125 multipoint
> frame-relay interface-dlci 501 ppp Virtual-Template1
> frame-relay interface-dlci 502 ppp Virtual-Template1
>
> virtual-template1
> ip address a.b.c.5 255.255.255.0
>
> But the routing tables on R5 do seem to get in a bit of a knot and one
> route in particular comes up as
>
> O E1 128.1.14.0/24 [110/21] via 128.1.125.1, 00:01:06, Virtual-Access2
> [110/21] via 128.1.125.1, 00:01:06,
> Virtual-Access1
>
> I have NO idea why virtual-access2 (pointing to R2) gets involved, because
> there's nothing out that way to advertise that route. it seems, I think, to
> be an odditiy of using virtual-templates this way. it should be solidly out
> R1. The routing table on R2 shows that R2 thinks this as well.
>
> Any comments folks? I can bungle my way around it (and have done so) but
> I'd like to understand this properly. All configs I've seen so far with
> virtual-templates only have one DLCI per virtual-template per interface and
> not this sort of setup. I'm slightly at a loss to know how to diagnose it
> and would apreciate any pointers.
>
> many thanks
> Danny
>
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