Help With Configure PA-220

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Help With Configure PA-220

L1 Bithead

I am trying to build firewall from scratch. Our use case is to secure 3 servers with separate DSP connected to PA-220. We do not have any managed switch or router between ISP to firewall. It is direct from modem to firewall.


Can anyone help with this? Palo Alto's documentation isnt helpful as I am not network guru.


Community Team Member

Hi @PranamShah ,


That a broad request.  I'd recommend checking out some of the getting started guides.  You'll find plenty of those on our LIVEcommunity YouTube channel over a variety of different topics.


There's also the getting started documentation DOC which provides detailed steps to help you deploy a new Palo Alto Networks next-generation firewall.


These should definitely help to get you started.




LIVEcommunity team member, CISSP
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Thanks Kiwi.


Do you know if my use case as below is Valid?


  • 3 servers
  • ISP (Modem) to PA-220 directly
  • No router or switch


Do I need to have Switch (L3) / Router (L3) between my servers and PA-220 or can I directly plug in Servers to PA-220?


L5 Sessionator

A switch would be L2, not L3. You can connect the servers directly to the PA-220, but you will need to decide if each port will be its own network (L3 routing thru the PaloAlto between servers), or if you will try to bridge all 3 server ports together into a single L2 network. See this for bridging L2 ports:

L1 Bithead

Thanks Adrian.


L2 switch is an unmanaged switch isn't it? Managed switch would be L3?


So basically I can not connect Server/VM Hosts directly to one one of 8 available interfaces on PA-220? Do I have to have a switch? And if yes, will unmanaged switch work or do I have to buy a managed switch?


Also for the internet to PA-220, can I connect ISP Modem directly to PA-220 and configure public IP on either management port or one of the interfaces?


Something like below is what I want to achieve. Is it viable?



Sorry to ask some basics but I am a bit new to this.

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