Sub-Interface for one IP address

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L2 Linker

Sub-Interface for one IP address

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.

 

 

 

L7 Applicator

Re: Sub-Interface for one IP address

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,

L7 Applicator

Re: Sub-Interface for one IP address

Yes you can set it up as you describe. Physical interface can be blank.

 

Enterprise Architect @ Cloud Carib www.cloudcarib.com
ACE (3.0, 5.0, 6.0, 7.0), PCNSE (6, 7), PCNSI
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