I am having trouble changing the DNS servers on the Zoom model 5345 cable modem. The aim is free filtering for all devices within range of our wireless router (i.e., I have 3 kids, with friends, with multiple devices).
Specifically, I'm to change the servers to use the OpenDNS IPv4 addresses. Do I need someone at TWC have to unlock this modem, or do I need to get a different modem that allows this?
P.S. Im not much concerned about which DNS is faster....
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What servers? You won't get any different routing and TWC's DNS works better as they have a pipeline route and no local exit paths to other ISP's, to get to your next door neighbor on Uverse, it takes 15+ hops.
In the router, you need to uncheck autodetect WAN settings and load in your own...
TWC will have 188.8.131.52 & 62
First you would need to learn which devices stores and uses that information. Hint: It's NOT the modem, it's the router.
Next, as MsRaye says, you should use the TWC DNS located at 184.108.40.206 & 62 (which are automatically updated per the worldwide internet standards) so your data packets move across Spectrum's transport paths to the proper IXP location somewhere in the USA. That's the place where your packets jump onto the worldwide web and then are routed to the specified destination.
"Open DNS" allows you to set up an account and filter your DNS lookups that go through your personal router. The user in your house gets a canned (or custom) message that an address has been blocked if it is. Works great to keep the basic "bad websites" away form the household (there are better kid specific blockers). You can actually block quite a lot if you desire. You use their DNS servers (220.127.116.11, 18.104.22.168) and your account to specify which subjects you want blocked (nudity, pornography, phishing, etc.). Really works well and is also continuously updated (as are the IP addresses to be blocked) and actually has worked better than TWC when TWC's DNS servers went out a year or two ago.
AND... I guess no one answered the real question. I have always had my own routers but from the manual for the Zoom 5345:
On your computer, open a browser and type in the address 192.168.100.1 Enter
User Name: admin
You can then go into the DNS settings to change. Somewhere in the menus, probably Advanced settings.
still doesn't help you, you need to go into all devices and force them to use it, not the router...
You can only do intercepts with a DDWRT or openwrt router, not an all in one combo