From: fwells12 (fwells12@xxxxxxxxxxx)
Date: Sun Mar 04 2001 - 02:11:23 GMT-3
I didn't expect to be able to do regular pings because the source ports were
un-numbered. I did expect to be able to do an extended ping though, and was
surprised to find it did not work. In order to check that I was
configuring it right I ended up putting a PC at each end of the network and
running Netbeui between them!
----- Original Message -----
From: Chuck Larrieu <chuck@cl.cncdsl.com>
To: fwells12 <fwells12@hotmail.com>; <ccielab@groupstudy.com>
Sent: Saturday, March 03, 2001 8:04 PM
Subject: RE: Bridging over frame-relay.
> Frank, I need to start looking at bridging as well. Haven't done much of
> this with routers, but let's look at this from a theoretical standpoint.
>
> If you had a dedicated bridge on a network, how would you know? Do the
> bridge ports have IP addresses? Or mac addresses for that matter?
>
> Even being a layer two device, I don't believe that bridge ports need mac
> addresses. Recall that a bridge operates by listening to traffic, and then
> passing packets to directly connected segments when it hears a packet with
a
> destination mac that resides out one of the bridge ports.
>
> I fooled with cisco bridging a ways back, and I seem to recall that in a
> straight bridging mode, the router end points cannot be pinged. You would
> have to have other devices on both connected segments, and would have to
> ping those end points. This is not true for IRB.
>
> I'm sure I will be corrected if I am misunderstanding this.
>
> Chuck
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> fwells12
> Sent: Saturday, March 03, 2001 2:18 PM
> To: ccielab@groupstudy.com
> Subject: Bridging over frame-relay.
>
> How can I test end to end connectivity when bridging over frame relay? =
> The serial interfaces have no IP addresses on them and the ethernet =
> networks on each router are addresses on the same subnet. I have tried =
> pinging both regularly and using extended pings but neither works. Do =
> pings work for testing this scenario ? Theoretically I should be able =
> to disable routing on both routers and still have bridged connectivity =
> right?
>
> Cheers
>
> Configs if your interested:
>
> Router3:
> interface Ethernet0
> ip address 10.1.1.3
> no ip mroute-cache
> no keepalive
> no cdp enable
> bridge-group 1
> !
> interface Serial0
> no ip address=20
> encapsulation frame-relay
> no ip mroute-cache
> no fair-queue
> frame-relay map bridge 304 broadcast
> frame-relay lmi-type ansi
> bridge-group 1 =20
> !
> bridge 1 protocol ieee
>
> Router4:
> interface Ethernet0
> ip address 10.1.1.4
> no ip mroute-cache
> no keepalive
> no cdp enable
> bridge-group 1
> !
> interface Serial0
> no ip address=20
> encapsulation frame-relay
> no ip mroute-cache
> no fair-queue
> frame-relay map bridge 403 broadcast
> frame-relay lmi-type ansi
> bridge-group 1 =20
> !
> bridge 1 protocol ieee
>
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