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03.11.2008 at 08:18AM PDT, ID: 23232003 | Points: 500

	[x] Attachment Details

Routing for unnumbered ethernet interface

Zones: TCP/IP, Network Routers, Transport

Tags: cisco, 3640, c3640-ix-mz.121-13.bin

I have a 3640 that has two ethernet 10MB interfaces.
interface 2/0 is facing a public IP network.
interface 1/0 is facing a private network.
The private network is connected to another public BGP network.
My question is can I route a public ip from interface 2/0 through the interface 1/0 to the public network that is internal.

Thank you

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Question Stats

Zone: Networking

Question Asked By: neko_prime

Question Asked On: 03.11.2008

Participating Experts: 2

Points: 500

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03.12.2008 at 07:08AM PDT, ID: 21106076

Rank: Master

_jesper_:

The network first has to be routed from the upstream router to your interface 2/0.

On your router:

config t
ip route <network> <mask> interface 1/0

05.13.2008 at 08:38PM PDT, ID: 21561081

rduconsulting:

I think you are asking whether you can tell your private network about the public ip which is located on 2/0, correct?

You could use and internal routing protocol, like ospf, to tell the other routers about that public ip so that your whole network is aware that it exists on your local router.

Please explain further if we are misunderstanding you.

20080236-EE-VQP-29 / EE_QW_2_20070628