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SSL VPN use Windows DNS server fail

Jeff x

I switched from a workgroup to a domain. I was using the UTM as a DNS server with static network definitions for the servers that are hosted behind the UTM. Some of the servers are accessible from both local and external clients so I went with the second option as listed in post #1 of the DNS Best Practices.

I was able to get everything working since switching to a Windows DNS server (DC) but I can’t get the SSL VPN to use the Windows DNS server. I have to keep the static network definitions and specify the UTM as one of the DNS servers under Remote Access -> Advanced in order to access the servers via the VPN.

I do not have a WINS server. Under Network Services -> DNS -> Request routing, I tried adding 2.242.10.in-addr.arpa -> the Windows DNS server but it did not make any difference. I have cleared the cache on the UTM and devices after each change.

What am I missing or doing wrong?



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    I believe you have to remove in the DNS 'Allowed Networks' the VPN Pool network if you are using an internal DNS.  Take it out if you are.  If you are not using an internal DNS server, it should look like this below:

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    I believe you have to remove in the DNS 'Allowed Networks' the VPN Pool network if you are using an internal DNS.  Take it out if you are.  If you are not using an internal DNS server, it should look like this below:

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