I got a "home" Verizon box, and the first thing I did was change the DNS setting... 1.1.1.1 wasn't working, and I wanted to change it back to default. Verizon's tech support are idiots... they literally wouldn't give me the default DNS IP because they were concerned about security.
replyGoogle's DNS worked fine, but Cloudflare's didn't. No idea if they ever fixed it... I'm using it as a backup for my main connection, eventually I'll setup autofailover on my router (OpnSense). For now, I just swap the cables.
Quantenna used 1.1.1.1 for RPC to their wifi chip in their SDK by default. Should not have been exposed to global routing but of course people screwed that up.
replyhttps://medium.com/@mrtcve/atts-misuse-of-cloudflare-dns-ip-...
My ISP won't give me the router credentials because they claim that that would somehow risk their network interconnectivity or something. I have no idea how this makes any sense since a router (shouldn't) give me that level of access, but maybe I'm missing something?
replyIf the router is also the modem, it can have diagnostic stuff that could (I am careful to point out: theoretically) cause them a big support headache in one way or another.
replyAlso, I had a DSL modem back in the day with its own terrible NAT built-in. I managed to log in (I may have been given the admin password from a friend who worked at the ISP, allegedly) and once I put it into bridge mode, I was able to acquire multiple public IPv4 addresses via DHCP.
Or they didn't want you to know the IP(s) so you could easily block it
replySounds like they blocked Cloudflare but couldn't block Google
Funny enough their problems really began in earnest about seven or eight years ago...
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