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Multiple ISP in single ASA

bberry
Level 1
Level 1

Hello,

I hope this is in the right group. I am looking to see if it is possible to have two different IPSs in the same ASA and then statically route traffic over the second ISP. I have an ASA today that is connected to my ISP and is configured to handle just our site-to-site tunnels. I want to see if I can add a second ISP and then statically route specific traffic through this ASA and out the secondary ISP. I have never had an ASA that had two different ISP let alone try to get different traffic to flow to them. Suggestions??

Brent

2 Replies 2

Chakshu Piplani
Cisco Employee
Cisco Employee

Hi Brent,

 

You will need to use PBR (policy based routing) for this, please go through these docs:

https://integratingit.wordpress.com/2020/03/01/asa-policy-based-routing/

https://www.cisco.com/c/en/us/td/docs/security/asa/asa94/config-guides/cli/general/asa-94-general-config/route-policy-based.html

 

There are many other examples available online that will come up on google search for policy based routing on ASA.

Regards,

Chakshu

 

Do rate helpful posts!

Chakshu,

 

Any design guide or documentation on getting the second ISP link working without it being a failover link for the primary ISP? I think I still need to configure routing for the new link but need to make sure I do not effect routing for what is currently in production. This is my first time configuring an ASA for multiple ISPs.

 

Thanks,

 

Brent

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