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SD WAN using loopback on Palo Alto

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SD WAN using loopback on Palo Alto

L1 Bithead

I configuring a HUB for SDWAN with vpn, however this firewall currently have vpn tunnels to 3rd parties.  Due to this I am planning on using a separate wan ip for sd-wan.  However I do not have free ports on my firewall for this.  Is it possible to configure a SDWAN HUB to use a natted loopback?  If so I am not seeing any place to configure teh sd-wan interface profile for the loopback

4 REPLIES 4

L2 Linker

In my similar situation, I used an untagged sub-interface to terminate non-SDWAN tunnel connections. 

Douglas Elliott
Security Implementation Engineer
delliott@sayers.com

wouldnt this cause a conflict? if the parent interface has an ip of 1.1.1.1/24 and the sub interface has an ip of 1.1.1.2/24 wouldnt that cause an issue?

I tried doing this but I am getting an ARP issue, can you please go into detail regarding this setup?

L1 Bithead

Capability to use multiple IPs on SD-WAN participating interfaces was introduced with 11.1.0+ and plugin 3.2, so make sure you use those versions as minimum. Also, SD-WAN terminating IP will need to be first added then all additional IPs that you will have up to 4.
You can't terminate SD-WAN on a loopback currently, only on Physical Ethernet, AE, or Ethernet or AE subinterface.

SR
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