A WORKAROUND & SPEEDUP + SECURITY method within: Take a read...
But i think i got what you want to say - that your PC's have static DNS server adresses. In that case hijacking router's DNS settings wouldn't wield any results.
I can, for certain, tell you there is a sort of "protective & yet performance adding workaround" for not being able to access your DNS (domain name servers) for URL -> IP Address resolutions...
It's one that gains you added SPEED & SECURITY, right here & I use it, & now many others do on these forums & like it... take a read:
Why use an ADBANNER BLOCKING HOSTS file? Here is why:
http://forums.techpowerup.com/showthread.php?t=25937
* It works, as far as if you can't get a valid DNS resolution for URL's you go to as your 'favorite sites', & get hijacked this way (turning off javascript will help too, because it's probably how this hijack works largely & why I've been turning it off for years in my browsers on the public internet)?
This 'blows you by that'...
(& that is just a 'side-effect' of its primary purpose really, which is the secure you online against malware payload bearing adbanners, & to speed you up for the ISP/BSP linetime access YOU PAY FOR, by not loading adbanners period, & to speed up access to your fav. sites IF you choose to make it active for that (I don't ship it THAT way, that part you have to make active yourself, because your fav. sites are not the ones I go to possibly, in my examples list in the file)).
Besides, even protecting YOURSELF & YOUR ROUTER, if you depend on remote DNS servers? Might not always be the 'end all do all' because the ROOT DNS SERVERS ARE UNDER ATTACK (usually are, all 13), see here:
DNS Root Server under attack:
http://it.slashdot.org/article.pl?sid=07/02/06/2238225
My methods also helps to alleviate THAT problem as well, to fav. sites you go to, should you choose to make that part of the file I put out here, active, by yourself doing it & leveraging that feature in it.
APK
P.S.=> Enjoy... it works! See others' estimations of it (around 15-20 others here by now) in the thread, & judge for yourselves.
ALL I know is, for this particular thing? Heck, who cares if my DNS "goes down" or "gets hijacked"?? I am NOT using it for my favorite sites list I put into this file... I get to them anyhow, & to their RIGHT IP Address, no DNS required... & faster/safer, period... apk