WAN Failover NAT issue

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WAN Failover NAT issue

L2 Linker

Hello all,

I am trying to set up WAN failover on a Palo Alto PA-3020.  I used the document at the bottom of this post.  When I unplug the interface that is set up in the PBR, it switches over to the secondary ISP like it is supposed to.  The problem is the Primary-NAT policy is still active so traffic doesn't pass because the Backup-NAT never takes effect.  If I manually disable the Primary-NAT rule then I see traffic able to leave the Palo Alto.  I noticed the document is for PANOS 3.1 but it doesn't look like much has changed as far as settings go.  Does this setup still work for 6.0+?  If so is there something I am missing so the Backup-NAT rule takes over?  I didn't see anywhere that tells the NAT policies themselves to failover.

wanfailoverissue.png

Dual ISP Branch Office Configuration

1 ACCEPTED SOLUTION

Accepted Solutions

you have to choose destination interface on Nat rules

This is because you hit always first rule.

View solution in original post

4 REPLIES 4

L6 Presenter

could you please share your nat rules here

Sure.  I basically set it up just like the document stated unless I missed something.

natissue.png

you have to choose destination interface on Nat rules

This is because you hit always first rule.

View solution in original post

That was it.  Yeah I just missed that part in the document.  Works like a charm now.  Thanks panos!

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