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Beginner

Dual ISP Config

Network newbie here, working on a home project.

I have an old Cisco 2600 router running IOS 12.4 with 4 ethernet ports  available. The goal is to put this router in front of a firewall and  have it split traffic between 2 ISPs based on access lists. For example  all traffic on port 25 goes through ISP 1 and the rest of the traffic  goes through ISP 2.

The firewall would only be configured with a single gateway.

What is the best way to go about this? I was thinking a NAT config, but not sure.

2 ACCEPTED SOLUTIONS

Accepted Solutions
Beginner

Dual ISP Config

You have to go with Route Maps and/or PBR ..

Can you share your current topology and config?

View solution in original post

Rising star

Dual ISP Config

Hi,

As Islam mentioned you need to use PBR.

Here is the link with excellent example

https://supportforums.cisco.com/docs/DOC-8313

Hope it will help.

Best regards,
Abzal

Hope it will help. Best regards, Abzal

View solution in original post

4 REPLIES 4
Beginner

Dual ISP Config

You have to go with Route Maps and/or PBR ..

Can you share your current topology and config?

View solution in original post

Rising star

Dual ISP Config

Hi,

As Islam mentioned you need to use PBR.

Here is the link with excellent example

https://supportforums.cisco.com/docs/DOC-8313

Hope it will help.

Best regards,
Abzal

Hope it will help. Best regards, Abzal

View solution in original post

Beginner

Dual ISP Config

WOW!! I'm astonished how people here complete each other!

Highlighted
Beginner

Dual ISP Config

Thank you, that is an excellent post. I have succesfully configured a PBR in a lab environment.

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