ECMP Configuration Questions

justinmoose — Mon, 24 Jan 2022 14:09:31 GMT

Hi,

New to the board. I have two WAN circuits going to two separate ISPs. I would like to run ECMP with weighted round robin over ISP1 & ISP2. However, I want to verify this can be achieved successfully in my environment. I have 15-20 VPN connections to various agencies which all must go out the correct circuit (ISP1) and IP address. I have hard coded these in as destination NAT rules and they work fine but currently I am only using ISP1 and ISP2 is strictly a backup. I have read a few articles stating this is possible but that I would need multiple VRs. I currently only have one VR in place. Is there a good document somewhere with detailed configuration steps or could someone tell me if this configuration would work in my environment?

Thank you very much in advance!

Justin

Re: ECMP Configuration Questions

kiwi — Thu, 27 Jan 2022 10:43:19 GMT

Hi @justinmoose ,

As far as I know you can ECMP using just one VR.

Please check out the following KB on how to implement ECMP:

https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClF8CAK

In this light board presentation, you will learn the benefits of deploying ECMP, and review a basic topology of how to configure ECMP in your network:

https://www.youtube.com/watch?v=KICp-9yXOT0

Hope this helps,

-Kiwi.

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ECMP Configuration Questions

Re: ECMP Configuration Questions