Re: Can't get translational bridging to work!!

From: Daniel C. Young (ccie7999@xxxxxxxxx)
Date: Tue Nov 06 2001 - 01:40:25 GMT-3


   
Albert,

Rivron and Richard are correct. First, if routing is enabled, remember that
Cisco routers will route by default and bridge only when it has to bridge.
If you do a 'no ip routing' then yes, it will bridge. However, you will
still not be able to ping since the interfaces are in different networks.

Alternatively, you can configure IRB and place the IP address on the IRB.
Also remember to hard-code which protocols get bridged and which get routed.
For example:

bridge 1 bridge ip
no bridge 1 route ip

Double-check the syntax. Best wishes -Daniel

----- Original Message -----
From: "Rivron Francois" <Francois.Rivron@ei-rsi.fr>
To: "Albert Lu" <albert_ccie@yahoo.com>; <ccielab@groupstudy.com>
Sent: Wednesday, October 31, 2001 9:37 PM
Subject: RE: Can't get translational bridging to work!!

> Don't forget that on ethernet when ip routing is enabled, an ip packet is
> forward to ip_input process and so is not bridged.
>
> You have to enter
> no ip routing
> on the bridge router
>
> > -----Message d'origine-----
> > De: Albert Lu [SMTP:albert_ccie@yahoo.com]
> > Date: mercredi 31 octobre 2001 12:15
> > @: ccielab@groupstudy.com
> > Objet: Can't get translational bridging to work!!
> >
> > Could someone look at my config. My Translational Bridging doesn't seem
to
> > work.
> >
> > R1 --- R2 --- R3
> >
> > Am I suppose to be able to ping the R3's ethernet from R1? I've used
'show
> > span' and 'show bridge' and they all look fine, with a desginated root
> > etc,
> > etc.
> >
> > Thanks
> >
> > Albert
> >
> >
> > R1:
> > interface FastEthernet0/0
> > ip address 10.3.0.1 255.255.0.0
> > no ip route-cache
> > no ip mroute-cache
> > no keepalive
> > duplex auto
> > speed auto
> > bridge-group 1
> > !
> > interface Serial0/0
> > no ip address
> > no ip route-cache
> > no ip mroute-cache
> > bridge-group 1
> > !
> > bridge 1 protocol ieee
> >
> > R2:
> > interface Ethernet0
> > ip address 10.1.0.1 255.255.255.0
> > no ip directed-broadcast
> > no ip route-cache
> > no ip mroute-cache
> > no keepalive
> > bridge-group 1
> > !
> > interface Serial0
> > no ip address
> > no ip directed-broadcast
> > no ip route-cache
> > no ip mroute-cache
> > clockrate 64000
> > bridge-group 1
> > !
> > interface Serial1
> > no ip address
> > no ip directed-broadcast
> > no ip route-cache
> > no ip mroute-cache
> > clockrate 64000
> > bridge-group 1
> > !
> > bridge 1 protocol ieee
> >
> > R3:
> > interface Ethernet0
> > ip address 10.4.0.1 255.255.0.0
> > no ip directed-broadcast
> > no ip route-cache
> > no ip mroute-cache
> > no keepalive
> > bridge-group 1
> > !
> > interface Serial0
> > no ip address
> > no ip directed-broadcast
> > no ip route-cache
> > no ip mroute-cache
> > bridge-group 1
> > !
> > bridge 1 protocol ieee
> >
> >



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