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dslr595148
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Posts: 6,077
Registered: ‎09-24-2008

Re: Brand new GT784WNV to Bridge Mode Successfully

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@VZCustomer3 wrote:

cr006f did you ever figure out this issue:

 


1.  Last night I couldn't get into the modem at 192.168.99.1 after I put it to Bridge mode.  Have to mess around with it a little bit more I guess, maybe I'm doing something wrong.

I can also no longer login to my modem after putting it into bridge mode... does putting it in bridge mode change the username / password or something?


I know every single method to get into a modem while it is in bridge mode (not configured to handle a WAN IP).

 

a) what »DSLR User Teddy Boom (user number 1434918) said in another thread.

 

Summary: NIC gets disconnected from the RJ-45 WAN router, a static IP is setup on that NIC with-in the same subnet as the modem combo and NIC gets re-connected to the modem combo.

 

Or Just factory reset it & log in normally

 

And - summary: RJ-45 WAN port router's LAN and the modem combo's LAN are not in the same subnet, your computer must have two NICs (one of them must a wired NIC), the NIC that is connected to the modem combo is in the same subnet as the modem combo LAN IP.

 

---

 

#1 As long as you only need access to the router and the modem in bridge mode without disconnecting your computer from the RJ-45 WAN router:

 

a) Make sure that the RJ-45 WAN port router's LAN and the modem combo's LAN are not in the same subnet.

 

For example the RJ-45 router's IP LAN 192.168.1.1 (mask 255.255.255.0) and your modem combo LAN is 192.168.0.1 (mask 255.255.255.0)

 

b) Setup a Static WAN IP of the RJ-45 router so that is in the same subnet as the modem combo.

 

For example the RJ-45 router's LAN 192.168.1.1 (mask 255.255.255.0), your modem combo LAN is 192.168.0.1 (mask 255.255.255.0)., and your RJ-45 router's WAN 192.168.0.1 (mask 255.255.255.0)

 

c) Be strongly advised as long as the RJ-45 router's WAN IP is set to Static and is in the same subnet as the modem combo and this RJ-45 router is not a Dual WAN port router of any kind (RJ-45 WAN1 and RJ-45 WAN2, RJ-45 WAN and 4G/LTE, RJ-45 WAN and POTS dial-up, ETC..) you (and the computers that are behind this RJ-45 WAN port router) are not going to be able to access the Internet!

 

d) To get back online, you need to change the WAN setting back to what it was before you made it a Static IP with-in the same subnet as the modem combo.

 

Possible fix #2 (with access to both and online)

Using third party firmware (either with commands and then rebooting the router OR in the UI option of Route Modem IP field) on the router..

Note by commands and then rebooting the router, I mean - (Third party site) dd-wrt.com -> Community -> Wiki -> Tutorials (Basic and advanced configuration tasks for your router...

By UI option Route Modem IP, I mean with this..

 


9b542ab3e1c2d7d9344e682483f768dd.png

 

While it is possible to do this with third party firmware, it is NOT limited/restricted to only third party firmare.

 

Possible fix #3 (with access to both and online) REF »Re: Access to modem combo while in bridge mode

Primary and secondary router's RJ-45 LAN IP in a different subnet than the modem's LAN IP, secondary router's LAN IP with-in the same subnet as the primary router's LAN IP, secondary router's WAN IP with-in the same subnet as the modem's LAN IP, secondary router's DHCP server disabled, and primary router use a static route in this format..

 

Subnet IP: (the subnet of your modem)
Mask: (the Subnet Mask of the primary and secondary router on the LAN)
Gateway: (the IP address of the secondary router on the LAN)

 

All of the options/possible fixes above that I have tested and I know that work, the options below I am not sure of.

 

Possible fix #4 (with access to both)


If I was on PPPoE, I have heard/read...

»[modem/router] How to access 6100G's interface while connected?

Note: How the OP started the thread.

Short summary since all of the info is not in only post..

RJ-45 WAN port router's LAN and the modem combo's LAN are not in the same subnet, RJ-45 WAN port router has WAN port connected to modem combo: as long as the PPPoE connection is down he/she is able to get into the modem combo.

Possible fix #5 (with access to both and online) The answer to the OP's question without adding more hardware (ex a hub/switch between modem combo and router), without loading DD-WRT/Tomato, without changing to Static IP with-in the same subnet (PC OR Router Level) - the post by wayjac (user #544732)

Direct Link: »Re: [modem/router] How to access 6100G's interface while connect

Short summary:

RJ-45 WAN port router's LAN IP with-in same subnet as the modem combo, RJ-45 WAN port of RJ-45 WAN port router connects to one of the free/not in use RJ-45 LAN ports of the RJ-45 WAN port router, and RJ-45 LAN port of modem combo connects to one of the free/not in use RJ-45 LAN ports of the RJ-45 WAN port router.

 

Note if that works: I would think it works for other connections that require a log-in.

Other examples of types of connections that require a log-in are: PPPoA, PPTP, L2TP, and Big Pond.

All of those examples, but not including PPPoA, are as shown at

http://support.dlink.com/emulators/ebr2310_revB/Basic_WAN.html

 

Also I heard/read (REF = »Re: Access to modem combo while in bridge mode ) that instead of two NAT routers, a Dual WAN port router will work.

Q: Is that true you ask what I was told?

A: Unless I convert a computer into acting as a a NAT router, I can not tell you because all of my RJ-45 WAN port NAT routers only have one WAN port.

 

--

 

Not much of an update to the list of methods (listed above) to get into a modem combo while it is in bridge mode other than:

With my RJ-45 WAN port router connected with it's WAN port to the LAN port of the cable modem and both devices are different LAN subnets - while I have the Route Modem IP option I can access the cable modem as normal (That was not possible on my DSL connection).

Now you have to understand that I am not a cable expert so I can not tell you if that is a cable thing or it is because of the brand (maybe also model) of the cable modem (ARRIS/SURFboard SB6141).

 

^^^

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