[nsp] Bridging?

Brian Turnbow b.turnbow at twt.it
Thu Feb 26 11:26:38 EST 2004

the default encapsulation on cisco serial interfaces is hdlc, but it is
proprietary. alot of vendors won't work in hdsl with cisco. set ppp
encapsulation on both the cisco interface and your e1/eth bridge. After that
you need to set up bridging on the interfaces you want to
take a look at


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Vincent De Keyzer
Sent: giovedi 26 febbraio 2004 14.37
To: cisco-nsp at puck.nether.net
Subject: [nsp] Bridging?

Hello guys,

I am trying to do something without even knowing whether it's possible or
not (all I have is a vague promise of a sales guy a few months ago :-).

The set-up is as follows:
 Cisco 3640 with VWIC-2MFT-E1 <----E1 link---> E1/Eth Bridge <----> Ethernet

So what I am trying to do is to turn the E1 interface on the Cisco (or, more
exactly, Serial0/0:0)  into an ethernet host on a remote (i.e. beyond the E1
link) network.


I see problems already like: what will be the MAC address of serial0/0:0 on
the ethernet network? I have seen a "mac-address" command in int.
configuration mode; but before jumping in this I thought I would ask the
ones who know...


1.	Is what I am trying to do completely irrealistic or not?
2.	If no, what commands do I need on the cisco?

Note: on the bridge I can configure either PPP or HDLC; but none of them
could succeed to bring the line protocol up on the cisco side (can produce
the debugs if that helps).


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