GRE support on PAN-OS 8.0


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L0 Member

GRE support on PAN-OS 8.0


is it possible to terminate a GRE tunnel on a PaloAlto? Parhaps there is something new in 8.0


Best regrads,


Tags (2)
Community Team Member

Hi @sst,


Nope the firewalls don’t terminate GRE, non-encrypted IPSec, or GTP-U tunnels. 

As documented here :


Cheers !


L2 Linker


Slightly off-topic, but Palo Altos can in fact terminate non-encrypted IPSec. Both AH and null-encryption ESP are supported in PAN-OS 8.0.



Cyber Elite

Hello All,

Just curious, why would a GRE tunnel be favored over a non-encrypted one?


Not trying to stir anything up, just asking.



L4 Transporter

Maybe the far end does not have the hardware to support encryption?  Just a guess at one possible reason.


I once had a tunnel to Verizon Wireless for an M2M solution and they specified GRE, would not or could not do IPSEC.

Cyber Elite

Hello Joe,

That makes sense.


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