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use of all ethernet ports and access to admin page after changing to bridge mode
I have a nighthawk c6300 modem+router+wifi device. My isp, spectrum, has not bumped the firmware revision up from the V2.01.26 release which makes the web admin UI only accessible from an old internet explorer install and not current chromium based chrome and edge browser installs.
I've purchased a modern router+wifi+wifi mesh device to plug into one of the ethernet ports coming out of the c6300. Since i'm using it for all my wifi and dhcp + router + nat + intrusion detection functionality it would seem to make sense that i turn all that off in my c6300.
q1. If under the c6300 web admin UI | advanced | administration | router settings i change Router Mode = Yes to No will this break ability to use the ethernet ports on my c6300?
q2. Would devices connected to those ethernet ports now end up pulling dhcp addresses from the modern router+wifi+wifi mesh device i have plugged into one of those ethernet ports?
q3. Once configured to be in bridge mode would i be able to access the c6300 web admin UI from a device wifi connected to my modern router+wifi+wifi mesh device i have plugged into one of the c6300 ethernet ports?
> Model: C6300|AC1750 Cable Modem Router Docsis 3.0
C6300[v1] or C6300v2? Look for "Model" on the product label.
> wrt q3 with the c6300 configured with Router = Yes -> No = modem/bridge
> only setting i could not access a c6300 web admin UI at 192.168.0.1 or
> 192.168.100.1 or routerlogin.com from my laptop plugged directly into a
> c6300 ethernet port or connected to a dhcp+router+wifi access point
> device connected to c6300 when in modem/bridge mode."could not" is not a useful problem description. It does not say
what you did. It does not say what happened when you did it. As usual,
showing actual actions (commands) with their actual results (error
messages, LED indicators, ...) can be more helpful than vague
descriptions or interpretations.
If you try that, then I'd expect you to need to configure the
computer manually with an IP address (static) on the same subnet as the
router. In modem-only mode, the C6300 won't provide a DHCP server, so
the computer might self-configure inappropriately. It might be
educational to fetch a User Manual for a plain cable modem (like, say, a
CM500), and look at its "Troubleshooting" section.> [...] Is there a factory reset pin hole located on back or ??? and
> does pressing it flip device back into Router = Yes setting [...]Yes. Visit http://netgear.com/support , put in your (actual) model
number, and look for Documentation. Get the User Manual (at least).
Read. Look for "Factory Default Settings" and/or "Reset button". Also
interesting: "Manage the Modem Router Configuration File".
5 Replies
> [...] will this break ability to use the ethernet ports on my c6300?
Yes. (Except for the one which connects to the WAN/Internet port on
the new router.)> q2. Would devices connected to those ethernet ports now end up pulling
> dhcp addresses from the modern router+wifi+wifi mesh device i have
> plugged into one of those ethernet ports?Huh? All your client devices would need to be connected to the new
router, which would also act as your DHCP server. The C6300 would be a
modem only.> q3. Once configured to be in bridge mode would i be able to access the
> c6300 web admin UI from a device wifi connected to my modern
> router+wifi+wifi mesh device [...]The C6300-as-modem should be accessible at "192.168.100.1".
Thanks for the responses that helps.
Wrt q3 response would the c6300-as-modem only device web admin UI at 192.168.100.1, vs 192.168.0.1 its currently accessible at, be reachable from a device connected to my new dhcp+router+wifi access point device that is plugged into c6300 ethernet port 1? In other words would i have to plug something directly into c6300 ethernet port 1 to access that web admin UI or should it be accessible by device plugged into new router+wifi access point device?
Wrt q2. response thanks for clarification didn't know whether c6300 in router = No / as a modem only device would enable ethernet ports 2, 3 and 4 to operate like switch ports leveraging whatever was plugged into ethernet port 1 as upstream feed.
Wrt q1 response just to confirm does new dhcp+router+wifi access point have to be plugged into the c6300-as-modem ethernet port 1 or will it work using any of the other ethernet ports also? I ask because my c6300 is currently located in attic where my house cableop coax house terminates and i have cat6 ethernet runs orginating from there to other parts of house. So i'm not sure exactly which c6300 ethernet port the run currently feeding new dhcp+router+wifi access point device is connected to.
> Wrt q3 response would the c6300-as-modem only device web admin UI at
> 192.168.100.1, vs 192.168.0.1 its currently accessible at, be reachable
> from a device connected to my new dhcp+router+wifi access point device
> that is plugged into c6300 ethernet port 1? [...]I believe so. Have you tried "192.168.100.1" when it's in
modem+router mode? "192.168.100.1" is a special DOCSIS address. I'd
expect it to work in either mode.> Wrt q2. response thanks for clarification didn't know whether c6300 in
> router = No / as a modem only device would enable ethernet ports 2, 3
> and 4 to operate like switch ports leveraging whatever was plugged into
> ethernet port 1 as upstream feed.In modem-only mode, you can use only one of the LAN Ethernet ports.
The remaining LAN ports on the C6300-as-modem are not connected to the
LAN ports on the new router.> q4. Does new dhcp+router+wifi access point have to be plugged into
> c6300-as-modem ethernet port 1 or will it work using any of the other
> ports also?I don't know. I'd guess that you could use any one of them, but I'd
use 1. It should be easy to run the experiment. No matter which one
you use, you can use only one of them.