From: Michael Dorion (dorionm@gmail.com)
Date: Mon Oct 20 2008 - 16:30:03 ARST
The example is a little confusing without configs. Looks like you listed 4
device but only 2 IPs and no masks. But to do proxy-arp on the same
interface, the router needs to have local proxy arp enable. This is not
enabled by default, and you can verify with the "sho ip interface
<interface>" command. You should see proxy arp enabled but not local proxy
arp. The router would also need a route to the destination, or a wider mask.
On Mon, Oct 20, 2008 at 2:05 PM, <syedraheel@gmail.com> wrote:
> Hi!
> While doing some labing I came accross an interesting scenario,,,,
>
> R1 and BB1 are connected to the same switch SW1 in same vlan 10. But the
> IPs of
> their interfaces which connect to the switch are of different subnets like
> 101.1.1.1 and 102.1.1.1
>
> its like R1(e0)-----(e1/1)SW1(e1/2)-----(e0)R2 , where e1/1 and e1/2 are
> configured in the same access vlan10
>
> Now, I cant ping between the two router interfaces, I set a static route
> 102.1.1.1 255.255.255.255 e0 on R1 and similarly a route back on
> R2.......I
> still see encapsulation failed on the debug.
>
> So whats happening is that when its arping for the destination address its
> not
> getting a reply back with a mac-address rite?...
>
> Can anyone explain this behaviour? How can I enable communication between
> the
> two routers?
>
> May be its too simple for a ccie forum ....but still we tend to forget the
> basics while studying for advance topics sometimes
>
>
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>
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