DNS in global protect vpn

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
Announcements
Please sign in to see details of an important advisory in our Customer Advisories area.

DNS in global protect vpn

L4 Transporter

Hello Experts

 

In global protect configuration, I provided the DNS IP. After VPN connect, I have two DNS, Physical card DNS and global protect vpn provided DNS. My question is that what DNS would be used for DNS queries for internet and for traffic through global protect vpn?

 

Regards,

 

 

GR

1 accepted solution

Accepted Solutions

Yes even with split tunneling.  naturally you need to be sure that your DNS server addresses are on the split tunnel so they can be reached while connected to the vpn.

 

The IOS example kb is here ignoring the DNS requests on the VPN.  

 

https://live.paloaltonetworks.com/t5/Management-Articles/GlobalProtect-Gateway-DNS-Settings-Ignored-...

Steve Puluka BSEET - IP Architect - DQE Communications (Metro Ethernet/ISP)
ACE PanOS 6; ACE PanOS 7; ASE 3.0; PSE 7.0 Foundations & Associate in Platform; Cyber Security; Data Center

View solution in original post

4 REPLIES 4

L7 Applicator

When you configure the DNS settings for global protect these should take precedence over the local DNS when you are connected.  All queries would go to these servers and you need to confirm they are reachable from the global protect tunnel connection.

 

However, this behavior can be overriden by the local OS of the client.  And there are known issues with some OS like Apple IOS ignoring requests to non-standard domains like .local.

Steve Puluka BSEET - IP Architect - DQE Communications (Metro Ethernet/ISP)
ACE PanOS 6; ACE PanOS 7; ASE 3.0; PSE 7.0 Foundations & Associate in Platform; Cyber Security; Data Center

Hi @pulukas

 

Thanks. So even in split tunneling, all DNS request will go to the DNS provided by global protect? Also how this behavior can be overriden by the local OS of the client?

Yes even with split tunneling.  naturally you need to be sure that your DNS server addresses are on the split tunnel so they can be reached while connected to the vpn.

 

The IOS example kb is here ignoring the DNS requests on the VPN.  

 

https://live.paloaltonetworks.com/t5/Management-Articles/GlobalProtect-Gateway-DNS-Settings-Ignored-...

Steve Puluka BSEET - IP Architect - DQE Communications (Metro Ethernet/ISP)
ACE PanOS 6; ACE PanOS 7; ASE 3.0; PSE 7.0 Foundations & Associate in Platform; Cyber Security; Data Center

Thank you

  • 1 accepted solution
  • 6527 Views
  • 4 replies
  • 0 Likes
Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!