Good suggestion about the : instead of the ..
Although, IIRC all Belkin routers and cable/ISDN modems default to 192.168.2.1 on the private/internal network interface if not re-configured by the enduser.
My Linksys router talks to a cable modem and the default gateway address is 192.168.1.1, so they aren't all .2.1. Neither the Linksys router nor the cable modem has a DNS server in it so a DNS query appears (I've just checked with Wireshark) as an access to the correct external address of the ISP's DNS server.
If the OP is indeed running their own private DNS server on 192.168.2.1 one might expect them to know about it, no? - it doesn't sound like the sort of thing you set up by accident?