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Dual Default route

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pepe123

MIS
Feb 26, 2004
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I need help on getting the following application to work. I have a Cisco 1841 with two Fastethernet. One of the FastEthernet 0/0 is connected to my internal network, Fastethernet0/1 is connect to a satellite modem to the internet. I need to have two default routes. the default routes are as follows,

ip route 0.0.0.0 0.0.0.0 fastethernet0/0
ip route 0.0.0.0 0.0.0.0 fastethernet0/1 150

What I am trying to accomplish is in the first default route goes down I need all the traffic to go over the second path. This all for internet access. Can you tell me what I am doing wrong. I cannot get the system to work. Any help will be great.

Thanks,
Jose' Luis
 
Why are you routing everything to your internal network? Wouldn't you want your traffic to go from your internal network outbound?
 
The main internet access is through the internal network. the route is as follows,

ip route 0.0.0.0 0.0.0.0 192.68.50.5 this is the main internet connection.

Thanks,
Jose' Luis
 
So 192.168.50.0 is your internal network?

ip route 0.0.0.0 0.0.0.0 192.68.50.5 will route everything to your primary ISP and then

ip route 0.0.0.0 0.0.0.0 (sat modem) 150 will back up primary route.
 
Correct, My internal network is 192.168.50.0. Would you like a copy of the router configuration. Let me know

Thanks,
Jose Luis
 
Here is the configuration,

Current configuration : 2520 bytes
!
version 12.4

!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
no aaa new-model
ip cef
!
!
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.50.1 192.168.50.59
ip dhcp excluded-address 192.168.50.201 192.168.219.254
!
ip dhcp pool ser
network 192.168.50.0 255.255.255.0
default-router 192.168.50.24
netbios-node-type h-node
domain-name svcfin.com
dns-server 64.80.84.108 64.80.84.98
lease 30
!
!
ip dhcp-server 192.168.50.24
multilink bundle-name authenticated
!
!

!
!
!
!
interface FastEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0$
ip address 192.168.50.24 255.255.255.0
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 72.170.188.253 255.255.255.248
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet0/1/0
no ip address
shutdown
duplex auto
speed auto
!
ip route 0.0.0.0 0.0.0.0 72.170.188.249 150
ip route 0.0.0.0 0.0.0.0 192.168.50.5
ip route 10.70.0.0 255.255.255.0 192.168.50.5
!
!
no ip http server
ip nat inside source list 101 interface FastEthernet0/1 overload
!
access-list 101 deny ip 192.168.50.0 0.0.0.255 host 192.168.50.5
access-list 101 permit ip 192.168.50.0 0.0.0.255 any
 
50.5 is a PIX 506 firewall. I was thing of using the track option to solve this problem.

Thanks,
Jose' Luis Granda
 
I would put a static route on the pix for all outbound traffic and point the pcs to them as a primary default gateway. Put a static route on your router with an outbound route to your sat modem and use the router as your secondary default gateway.

You can configure XP to have 2 default gateways under the advanced tab in tcp/ip settings.

MCC



 

ip route 0.0.0.0 0.0.0.0 192.68.50.5
ip route 0.0.0.0 0.0.0.0 interface FastEthernet0/1 150

The above should work as well though. Make sure your pix has the correct route to send it outbound.

 
I will try it tonight and let you know.

Thanks,
Jose'
 
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