Xref: utzoo comp.dcom.sys.cisco:1349 comp.protocols.appletalk:6144 comp.dcom.lans:8459
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!caen!spool.mu.edu!uunet!emperor!lad
From: lad@emperor.scs.com (Larry Deleski)
Newsgroups: comp.dcom.sys.cisco,comp.protocols.appletalk,comp.dcom.lans
Subject: Re: CISCO Brouters and Appletalk Phase II
Message-ID: <1991Jun25.165133.14006@emperor.scs.com>
Date: 25 Jun 91 16:51:33 GMT
Article-I.D.: emperor.1991Jun25.165133.14006
References: <1991Jun15.193153.18320@Firewall.Nielsen.Com>
Organization: Mentor Graphics IC Group, San Jose, CA
Lines: 49

From article <1991Jun15.193153.18320@Firewall.Nielsen.Com>, by kdenning@genesis.Naitc.Com (Karl Denninger):
> Hello!
> 
> Has anyone seen this?
> 
> We have a CISCO MGS with firmware 8.1(14) and bridging support.  We're
> trying to move some Macs onto their own cable, and having problems.
> 
> The config looks like:
> Interface Ethernet 0
> ip ...
> bridge-group 1
> 
> Interface Ethernet 2
> ip ....
> bridge-group 1
> 
> .....
> 
> bridge 1 protocol dec
> bridge 1 multicast-source
> .....
> 
> 
> I tried IEEE bridging without change...
> Any ideas?  I'm running out fast! :-)
> 
> --
> Karl Denninger - AC Nielsen, Bannockburn IL (708) 317-3285



Try turning appletalk checksums off.  We're running GS Software (GS2-BR),
Version 8.2(3) of the Cisco prom, and we still have to have checksums turned
off to avoid exactly what you're seeing there.

Just type the following line into your config:

no appletalk checksum


and write it out.  Your problem should be cured.


-- 
         Lawrence A. Deleski             |       Mentor Graphics
         lad@emperor.sjc.MENTORG.COM     |       IC Group
         uunet!emperor!lad               |       2045 Hamilton Ave.
         MABELL:  (408) 371-2900 x158    |       San Jose, CA 95125