Sophos UTM serves DNS on only 1 of 2 internal interfaces - please tell me what I'm doing wrong! Thanks.
UTM has external interface static 192.168.1.100, connected to BT HomeHub3 which is 192.168.1.254.
The Webadmin interface is static 192.168.1.253. 'netsh interface ip show config' shows BT's DNS servers 213.120.234.74 and .78 and browsers resolve DNS fine.
Family interface is static 192.168.2.1. This shows DNS servers as 192.168.1.254. Chrome/google says 'resolving proxy/downloading/proxy script/reolving host', then fails.
UTM DNS service and Firewall rules are on and defined for Internal & Family interfaces. In DNS service, forwarder is 192.168.1.254. Use ISP forwarders is checked, but shows none. Is this correct?
Maybe BT isn't providing DNS settings, so I added Network Definitions for them and assigned them here. Still doesn't work on Family interface ...
Anyone have any ideas please? Would prefer not to change the HomeHub as it does guest unprotected wifi, so could I add in a spare router serving explicit DNS as above on its LAN connection somewhere in the mix?
Is my gateway here 192.168.1.100 or 192.168.1.254?
Am I ok having the external ip in the ip range of the webadmin internal interface (192.168.1.253/24)?
Thanks Judy
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