Cisco 3725 Router for Internet Connectivity

Unanswered Question
Mar 20th, 2009
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We have en existing Internet connection using our Cisco 3725 router (ISP A). The router does the NAT and here's the existing default route:

S* [1/0] via

This router has a "16 Port 10BaseT/100BaseTX EtherSwitch".

Now we have a new Internet connection (ISP B). What I did was to configure two ports on the Etherswitch and added route maps:


interface FastEthernet1/0

description "ISP B to provider"

no switchport

ip address


interface FastEthernet1/1

description "ISP B to my network"

no switchport

ip address

ip policy route-map ISPBInternetTraffic


access-list 101 permit ip any

route-map ISPBInternetTraffic permit 101

match ip address 101

set interface FastEthernet1/0

set ip default next-hop


What I want to happen is that when the router sees the traffic coming from the public IPs of ISP B ( /29) it will direct that to go out ISP B on F1/0.

1. Is my configuration correct?

2. Any suggestions, recommendations?

3. Can I do load balancing or load sharing between the two ISPs?



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Overall Rating: 0 (0 ratings)
pkurdziel Sat, 03/21/2009 - 11:15
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It looks ok buthow are you applying the route-map?

Leo Laohoo Sun, 03/22/2009 - 14:23
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