here's my situation:
my ISP assigns me a dynamic ip address. this is pretty standard. along with my IP, i receive my DNS settings as well. this is completely normal. i totally understand this.
however, i wish to use CUSTOM DNS. in windows, i can accomplish this very easily. in the "network connections" window, i select the properties of my network adapter. if i change the properties of the TCP/IP protocol, i get the dialog that is present in the "windows.png" file attached to this post. here, i am able to ensure that my computer receives the dynamic IP, but i then overwrite the DNS and use my own.
i want to do this on my RVS4000 router. i want to set up custom dns as the subject implies.
before you start screaming about the "Server Settings (DHCP)" section in the "lan" tab under "setup", this is NOT correct. why, you say? because when you set this up this way, the DNS information is forwarded to the DHCP clients. this does NOT change the ROUTER'S dns. i want to know how to change the ROUTER'S dns.
again, using the windows scenario i described above, i should be able to tell the ROUTER to use a custom DNS. BUT WAIT! before you scream "use the Internet Connection Type" in "wan" under "setup", consider the fact that i have a commercial ISP and that i HAVE TO USE DHCP to get an IP and connect to the internet. and belive me, i've already tried workarounds... i set my router in DHCP, got an address, then without rebooting the ISP's modem, i changed my "internet connection type" to "static ip", using the information i got when i was in dynamic mode. THIS DOESNT WORK. PERIOD. THE INTERNET DOES NOT WORK, DESPITE THINKING IT SHOULD. im sure the ISP is forcing something down my throat. also, even if this DID work, this would be COUNTER-INTUITIVE. why? because if my ip were reallocated, i would lose network connection. by design, i should use DHCP, and i shouldn't try to circumvent it.
so now that i've clearly explained the issue and all the hurdles, how can i set up custom DNS on my router while in DHCP mode (just like windows has APTLY SHOWN IS EASILY POSSIBLE SINCE PROBABLY 1995)???
another question you may be asking yourselves-- why not just let my clients get the custom DNS and be happy? because i have some internal network names that i still want to have access to. if the clients have the custom dns shot directly to them, they will never be able to resolve those internal names. if i can just tell my stupid router to use custom DNS, the clients still use the router as their DNS, and when the router receives the requests, it can then determine if DNS request is internal and send it to that nic, or if it needs to go outside.
I'd REALLY appreciate CISCO response on this
I understand your frustration, and would like to assist. If possible, can you send me your email address as I would like to setup a time to discuss one on one with you.