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SSL VPN DNS Issue

Mohammad Khalil

Hi

We have recently setup the remote access VPN on the UTM9 and have a small issue.

A user connects to the VPN from home without issues. But they cannot ping hostnames on the network but can ping the IP addresses. This is intermittent as sometime it starts working but then stops again.

I have noticed from testing when I connect to the VPN, at first I am unable to ping hostnames, then I do a dnsflush and then all of a sudden I can ping hostnames. But the dns flush again resolves the issue sometimes and only lasts until the user logs off and back on again.

Has anyone experienced similar issues?



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    Hi,

    you might set DNS in Remote Access / Advanced Clientoptions.

    If've got the UTM-IP of SSL-VPN-Pool (e.g. 10.242.2.1) as DNS-Server#1 and the local DNS IP as DNS-Server#2 and the local domainname (domain.local).

    I use dns request routing to the interal DNS-Server - maybe it's used for this, too.

    Regards Nathan

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  • 0

    Hi,

    you might set DNS in Remote Access / Advanced Clientoptions.

    If've got the UTM-IP of SSL-VPN-Pool (e.g. 10.242.2.1) as DNS-Server#1 and the local DNS IP as DNS-Server#2 and the local domainname (domain.local).

    I use dns request routing to the interal DNS-Server - maybe it's used for this, too.

    Regards Nathan

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