Split Tunnel Routing Config Help

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Split Tunnel Routing Config Help

L1 Bithead

Looking for some help on split tunneling.

We are on PAN os 9.1.9 GP client 5.26, for our LAN we also use Cisco Umbrella to block sites.

What I want to do is when GlobalProtect connects I want all LAN traffic going through the VPN traffic, and all Internet traffic from the client going through their end, not the VPN

When I try and configure split tunneling on my gateway I follow the steps in the Split Tunneling doc, I include all my local LAN subnets in X.X.X.X/24 notation. In the Exclude I put 0.0.0.0/0

However when I connect and test with a known blocked site, I still get a blocked message. Looks like internet requests are still going through the GP client and our local LAN internet connection.

I am not sure what I am doing wrong here. Any one have any ideas?

Thank you in advance.

 

21 REPLIES 21

L4 Transporter

Hello @Dan_Swartz 

Did you check the routes on the client (using "route print")?

L3 Networker

Did you enable access to the Local Network?

L1 Bithead

Yes I did and all the include routes are listed, as far as the 0.0.0.0/0 route that points at the local adapter. also if I do a trace route it goes out the local adapter and does not get passed through the VPN. I did a trace both connected and disconnected from the VPN

You mean beyond the LAN subnets in the include area of split tunneling?

Yes, there is an option to enable/disable local network access when you are connected to the VPN. If you are not allowed LAN access then split-tunnel routes won't matter.

E99D6AD8-F220-49BF-8065-1604A454073C.pngNot sure what of what is causing your issue but we have this on a test gateway. We just include all rfc private nets by using address objects and exclude nothing....... and we only see traffic to private network addresses traversing the vpn.  

 

I assume you are not using a proxy???

 

 

 

No Proxy. But when I read the Palo Alto docs on split tunneling it said if you check the box "No direct access to local network" that in fact that disables split tunneling. Is that right?

I have that box un checked per the Palo Alto directions

No, that does not disable split-tunneling, that just enabled direct LAN access. For instance, if you have that box checked, you cannot reach local printers on the same subnet.

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