Originally Posted by hellosailor
Interesting, and quite different from the typical home router--which specifies the ISPs own DNS server or another outside service
. I wonder why they do that? And if there's other firmware redirecting it for some reason?
Typical home wireless routers with NAT will almost always by default advertise themselves as a DNS server through DHCP, rather than your ISP's actual DNS server address(es). The DNS process in the router acts as a caching-only DNS server, and handles DNS requests on behalf of the PCs on the private side (LAN side) of it.
On the other hand, most all of them will allow you to override that setting, and manually specify one or more DNS server addresses. It will then advertise that address via DHCP when your client PC's start up and send out a DHCP request for network configuration. I like to use OpenDNS, whose main servers are 126.96.36.199 and 188.8.131.52.
Using OpenDNS' servers used to be a way around some wireless ISP's signup pages, as they used to use DNS re-direction as a cheap
way to force you to sign up, rather than using a commercial
wireless infrastructure with proper security
. Nowadays, as prices have dropped, you don't find that kind of "fake" security/authentication anymore...