I have talked about this setup before but I am having issues getting it to work in the lab. I would like to position the PAN "inline" between two cisco switches that are connected via a trunked interface with specific allowed vlans. I would like to break it up and apply policies based on the tagged vlans across the trunk.
So far I have configured two physical interfaces as shown below.
Note: Everything is layer2
1/1.10 ZONE: 10-INSIDE
1/1.20 ZONE: 20-INSIDE
1/2.10 ZONE: 10-OUTSIDE
1/2.20 ZONE: 20-OUTSIDE
Now my question is, do I need to create a layer 2 vlan 10 and assign 1/1.10 and 1/2.10 to it? And the same for vlan 20? I tried that with no luck, has anyone had experience with this kind of setup?
the Palo Alto Networks device will work just fine using the setup you describe and operate on all of the IP traffic passing through the device.
There is no need to create any Layer 3 VLAN interfaces and in fact this would create unnecessary complexity. Keep It Simple!
What about assigning the subinterfaces to layer2 vlans on the PAN? Sort of like a layer 2 transport vlan between the subinterfaces? Make sense? There seems to be something I'm doing wrong, or it might be something on the cisco side. Any ideas if you have done this kind of setup before?
Thanks for all the help!
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