From: Vijaykrishna (vijaykrishna@xxxxxxxxxxx)
Date: Fri Jul 28 2000 - 11:28:30 GMT-3
L2 filter works only when u're bridging on the interface
Put another router as a bridge in between and try !
-----Original Message-----
From: ke Hei <heike9@yahoo.com>
To: ccielab@groupstudy.com <ccielab@groupstudy.com>
Date: Friday, July 28, 2000 10:04 AM
Subject: Layer 2 Filtering for Routing
>Here is the situation:
>
> e0: R1 s0: ----- s0: R2 e0:
> running any IP routing protocol (ospf, rip ...)
>having full ip connection. How can I block the routing
>updates sent from R2 by configuring a Mac address
>level filter on R1 only -- no layer 3 filtering are
>allowed ?
>
>I had tried by using following commands on R1:
> !
> int s0
> ip add ...
> Access-expression IN ( Dmac(700)|Smac(700))
> !
> Access-list 700 permit <mac_add_of_R2_e0>
> !
>It seems to be not working and both routers still be
>able pinging each other.
>
>I couldn't find more info. on layer 2 address
>filtering
>from cisco CD and web.
>
>Thanks in advance for any hints.
>
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