02-26-2019 09:27 AM - edited 02-26-2019 09:29 AM
Hi There,
I have a generic question about the Palo alto way of treating sub interfaces? Can I do sub interface on one of the physical interface for one netwrok address? for example, I did sub interface the ethernet1/5 as ethernet 1/5.123 and configured the netwrok 10.11.12.13/24 and no other networks exist on overall that physical interface. Connection to downstream switch is trunk by the way with allowing native vlan and vlan 123?
I believe we can do this, as I couldn't recall exactly what I did preaviuosly, but I did ran into issues with Cisco ASA firewall,
when I ran a trunk from switch to ASA and allowing only native and one custom vlan, ASA didn't accept the packets coming from the custom vlan when I did subinterface for that one vlan.
02-26-2019 11:08 AM
Hello,
You dont need to use native vlans for the PAN. What I do is setup sub-interfaces as L2 and then make the vlan interface L3. Just seems more flexible to me but its just my opinion.
Regards,
02-26-2019 11:37 AM
Yes you can set it up as you describe. Physical interface can be blank.
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