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Forum Discussion
bsputnam25
Mar 31, 2020Aspirant
New nighthawk 1750 with existing C3700 cable modem/router
Looking for the least painful way to make a new R6700v2 nighthawk my new wireless router and DHCP server with an existing C3700 cable modem/wireless combo. My existing DHCP config uses class A number...
bsputnam25
Mar 31, 2020Aspirant
Ok, this is going to sound like a stupid question but if I switch the C3700 out of router mode what local network IP do I use to access it's configuration?
antinode
Mar 31, 2020Guru
> [...] currently my mask is 255.0.0.0. [...]
I can't guarantee that that would be fatal, but it's a safe bet that
these routers were not intended to deal with 16M devices/addresses.
(250 seems to be a stretch in some cases.)
> [...] this is going to sound like a stupid question [...]
Nope.
Kasper Gutman : Well, sir, if I told you... If I told you _half_...
you'd call me a liar.
Samuel Spade : No, not even if I thought so.
> [...] but if I switch the C3700 out of router mode what local network
> IP do I use to access it's configuration?
A DOCSIS modem has a special-case address for that: "192.168.100.1".
(No bets, but I'd expect it to work even if your computer is not on that
subnet.) Worst case: Settings reset, and deal with it as a modem+router
again.
(And that's "its configuration".)