From: Justin Menga (Justin.Menga@xxxxxxxxxxxxxxxxxx)
Date: Sun Nov 05 2000 - 18:09:35 GMT-3
By default, ip routing is enabled on a Cisco Router.
If you create a bridge group and assign an interface to that group, by
DEFAULT, all protocols EXCEPT IP will be bridged, as IP routing is ON by
default. If you enabled IPX routing, IPX would then be routed just like IP.
To bridge IP, you must override the default using the global config command
no ip routing.
To answer your question specifically, IP will only be routed in the scenario
you have presented below. Thus, if the router receives a frame that
contains an IP packet, it will be delivered to the routing process rather
than the bridging process.
If you want to bridge and route a protocol on the same router, you need to
use either CRB or IRB.
Regards,
Justin Menga MCSE+I CCNP CCSE ASE
WAN Specialist
Computerland New Zealand
PO Box 3631, Auckland
DDI: (+64) 9 360 4864 Mobile: (+64) 25 349 599
mailto: justin.menga@computerland.co.nz
-----Original Message-----
From: David T. Absalom [mailto:dabsalom@lucent.com]
Sent: Friday, 3 November 2000 11:26 p.m.
Cc: Ccielab
Subject: confusion on bridging
I'm confused (nothing new...)
If an interface is in a bridge group but has an ip address and the "no ip
routing" statement has NOT been issued (additionally, no crb or irb), will
it route or bridge. Is ip routing on by default when an ip address is added
to an interface?
###################################
David T. Absalom, NSE
MCSE, CCNP, CCDA
Lucent Technologies
NetworkCare® Professional Services
Office: 614-760-3400
Pager: 800-572-0409
Cell: 614-783-8555
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