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What command should I add to make some of one prefix to go out through particular ISP ?

I'm running a BGP routing in my network.

I have 2 Cisco 7507 .I have 4M to ISP A and 4M to ISP B.One router for one ISP.

Currently , I have 3 prefixes such as below :-

<p>192.168.14.0/24

<p>192.168.15.0/24

<p>192.168.16.0/24

<p>The best routes always come through ISP A and most of the outgoing traffic will select ISP A as their path.I would like to focus one range of my prefix such as 192.168.14.0/24 to go out through ISP B only.

<p>How to use the route-map command ( or any other command ) to force the prefixes mentioned above to go out through ISP B only.

1 REPLY
Anonymous
N/A

Re: What command should I add to make some of one prefix to go o

(Sorry this may be difficult to read, but) Perhaps policy routing will fit the bill:

interface

ip policy route-map ISP_B

!

route-map ISP_B

match ip address 1

set ip next-hop

next_hop_of_ISP_B

-or- set interface interface_facing_ISP_B

access-list 1 permit 203.121.14.0 0.0.0.255

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