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Site-to-Site DNS

Hello all,

I have 2 locations (HO & BO) each behind their own XG Firewall. I have created a Site to Site VPN and everything works via IP but not by DNS.

The Setup is as follows:

All servers are hosted in the HO. There are no servers in the BO.
Sophos XG in the BO uses 8.8.8.8 & 4.4.4.4 for DNS lookup and uses internet local (not over the tunnel).
DHCP is also running on the BO XG for clients.

In HO, AD provides DNS & DHCP.

All IP's in each location are reachable and work.

I can achieve what i want using hosts files but that's not easy to maintain.

So how do I configure DNS so that when in the BO location I can ping via NetBios and DNS? I've read a few articles from the community and it seems to be or was an issue. However, there were old posts so I assume resolved.

I could change the primary DNS at the BO location and point it to the DNS in HO but that's seems wrong to me.

Any help as always appreciated. 



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Parents
  • Hi,

    What are the DNS IPs of your clients?

    Test with one client... put in the primary DNS IP the IP of one of your domain controllers that are located in the HO and test.

    If works, change your DHCP settings in your BO to at least include the IP of one domain controller.

    Hope that help.

    Regards.

Reply
  • Hi,

    What are the DNS IPs of your clients?

    Test with one client... put in the primary DNS IP the IP of one of your domain controllers that are located in the HO and test.

    If works, change your DHCP settings in your BO to at least include the IP of one domain controller.

    Hope that help.

    Regards.

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