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Routing with Multiple FE interfaces

Matt.Fields
Level 1
Level 1

I have a Cisco 2811 that has 2 Fast Ethernet interfaces. One interface

I want to use to control "Routes" on my local private network

(Basically just routing back throught same same interface).

The other Interface is the LAN side my T1 connection coming in on a WIC

card (WAN).

My issue is that I can only specifly one default-gateway and one

0.0.0.0 0

0.0.0 route for the router.

Ideally, I need to be able to route and specify gateway settings by

interface.

Is this possible?

2 Replies 2

Collin Clark
VIP Alumni
VIP Alumni

You only need one default route (pointing towards your internet connection), all other routes will be directly connected through your FE interface, or you'll have to create static routes/routing protocol for your other internal networks.

This is currently how it looks:

interface Multilink1

ip address 67.xxx.xxx.126 255.255.255.252

ppp multilink

ppp multilink fragment disable

ppp multilink group 1

!

!

!

interface Serial0/0/0

description Quest Internet T1

no ip address

encapsulation ppp

no keepalive

no fair-queue

ppp multilink

ppp multilink group 1

no shutdown

!

interface Serial0/1/0

no ip address

encapsulation ppp

no keepalive

no fair-queue

ppp multilink

ppp multilink group 1

no shutdown

interface FastEthernet0/0

ip address 69.xxx.xxx.65 255.255.255.224

speed auto

full-duplex

no shutdown

speed auto

interface FastEthernet0/1

ip address 192.168.21.1 255.255.255.0

no shutdown

duplex auto

speed auto

For anything traveling though the FE0/1 interface, I want to use the below routes:

ip route 0.0.0.0 0.0.0.0 192.168.21.2 (Back to PIX, then gets filtered by Websense)

ip route 172.16.0.0 255.252.0.0 192.168.21.4

ip route 172.20.0.0 255.252.0.0 192.168.21.4

ip route 192.168.33.0 255.255.255.0 192.168.21.4

For anything traveling though the FE0/0 interface, I want to use the below routes:

ip route 0.0.0.0 0.0.0.0 67.XXX.XXX.125 (WAN Gateway back to ISP)

I would like to segragate the two interfaces, as if they were different routers.

Is this possible?