Is it possible to terminate GRE tunnels on PAN device?
I'm planning to have multiple IPSec tunnels from all branch offices connecting to PA-2020 firewall, in each of these I would like to have GRE tunnel and then OSPF running, so in short: GRE over IPsec + OSPF. Is it possible? Apparently OSPF over IPSec is supported 'out of the box' on PAN OS, but if the other site is not a PAN divece, how would I accomplish that?
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It is not currently possible to terminate GRE tunnels on a Palo Alto Device. However, here is a good document on how to run OSPF over an IPSec tunnel:
Both OSPF and IPSec are standards based. So assuming the other side can match the configuration option, which in theory it should be able to, then you'll have a working solution.
thanks for your replay.
When you say 'other side can match the configuration', do you mean that I need another PAN box on the other side, so I presume that I wouldn't be able t replicate the configuratio on a Cisco box?
I haven't tried anything practically yet, just planning and trying to find the best scenario. I was hoping that Palo will implement GRE tunnels which would make everything much simpler.
Good point, I should have calrified that the "other end" can be any vendor (that support IPSec and OSPF). I meant to imply this by talking about standards based protocols.
I can understand that GRE could be desirable in some instances. Currently, we support IPSec and OSPF which will also be supported by the majority of VPN end points.
I expect the work flow would be:
Of course very high level, as you have the document to refer to.
If you need any further information, please let us know
I hate to resurrect old threads.. but I figured that it would be beneficial in this case.
Yes, we did not support support GRE tunnels in the past.
But, now with the release of PAN-OS 9.0, GRE tunnels are now supported.
For all of the info on using GRE tunnels, please see here:
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