DNS Server Return/Lookup when trapped
i am using DHCP which sets the DNS server as pfsense, for some clients like andoid and windows (particularly with antivirus/firewalls) they set their own DNS overrides. e.g. comodo and avast
I created a NAT Rule;
Source: LAN Net
Src Port: *
Dest Port: 53
NAT IP: LAN Net
NAT Port: 53
I block 53 from the WAN/VPNs and the rule works i.e. all PCs can resolve even with DNS overrides.
Only one small thing i notice.
When using nslookup to either resolve the host or the IP, the server is returned as unknown
If the DNS is set to pfsense, the server name and address will be pfsense and the address of pfsense
Am i able to return the DNS server name via a rule (even if trapped) or should i just ignore?