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[Resolved]:UTM 9 IPSec VPN can't resolve DNS internal hostnames

Frederic STOCK

Hello,

using a UTM 9.

VPNSSL connections from Sophos connect are configured and worked well.

I create a VPN IPSec connection always from Sophos connect.

The connection establish, I can see in the Sophos connect client the DNS and the domain name suffix configured in the UTM.

I can ping the network allowed in the UTM, put I can't resolve the internal hostname with or without domaine name suffix.

If I lookup a internal hostname, the DNS server is our internal DNS server configured, but it times out.

So why the VPNSSL can resolv internal hostname and not VPN IPSec ?

Thank's.

Regards.

Fred.



Resolved.
[edited by: Frederic STOCK at 10:35 AM (GMT -7) on 14 Mar 2025]
  • 0

    Hello,

    I thought I had checked "Automatic firewall rules", but not.

    So the DNS request didn't pass the FW.

    After creationg FW rules, it works well.

    Regards.

    Fred.

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