Obtaining Routers IP

[funkyCable]

Hi,
I have two routers, One of them being the Virgin Media Super Hub and another 6 year old wifi router. Now I know the IP address of the SH and have setup its DCHP server for my network. One my old router (which is wired in to the SH) has its DCHP server switched off.

Unfortunately I have forgotten what the IP address was to access the older routers setup pages. I've looked under SH but it doesn't list the device it does however list the devices which are connected via the old router. Any ideas how I could get the IP address of the old router?

[Hom3r]

it should be a combination of 192.168.x.y

x.y could be 0.0, 0.1, 1.0, 1.1

But if its connected to a superhub look at that to see connected devices.

[funkyCable]

I know my SH IP is 192.168.0.1. I've logged to the SH settings and viewed the Device Connection Status on the site.

The old router is not listed under the "Wired connection" but under the Wireless connections I can see a device which is connected to a wifi connection that is broadcasted from the old router.

[Cobbydaler]

Try pinging 192.168.x.x addresses which are not listed as being connected. You may hit it. Not very technical I know...

[thenry]

so the 2nd routers MAC doesn't appear in wired devices (SH interface) ?

ipconfig /all will give you second wired router as default gateway(in command prompt)

[idi banashapan]

Can you not reset the old router to defaults using the regular 'reset button', run a wire from you machine to it to get the DHCP address, then 'ipconfig /all' to find the gateway address, which will be the router? Obviously, make sure your machine is not connected to the SH at the same time!!

[funkyCable]

Originally Posted by tizmeinnit

ipconfig /all will give you second wired router as default gateway(in command prompt)

SorryI forgot to mention that I do not ahve any machines wired to the old wifi router. I did try ipconfig /all from one machine that is connected to to it via wifi. THe default gateway and DHCP are both pointing to the SH.

---------- Post added at 08:26 ---------- Previous post was at 08:24 ----------

Originally Posted by idi banashapan

Can you not reset the old router to defaults using the regular 'reset button', run a wire from you machine to it to get the DHCP address, then 'ipconfig /all' to find the gateway address, which will be the router? Obviously, make sure your machine is not connected to the SH at the same time!!

I was kind of hoping not to reset it else I would need to setup all the wifi connections on it. Like I have locked it down to only allow specific devices to connect to it via wifi.

---------- Post added at 09:03 ---------- Previous post was at 08:26 ----------

Originally Posted by idi banashapan

Can you not reset the old router to defaults using the regular 'reset button', run a wire from you machine to it to get the DHCP address, then 'ipconfig /all' to find the gateway address, which will be the router? Obviously, make sure your machine is not connected to the SH at the same time!!

I was kind of hoping not to reset it else I would need to setup all the wifi connections on it. Like I have locked it down to only allow specific devices to connect to it via wifi.

[Uncle Peter]

Try an arp -a -v on one of the hosts which are supposed to be connected via your old router and see if the address is in that machine's cache.

[Graham M]

Tried .254, that is quite a common one to use?

[qasdfdsaq]

Originally Posted by Cobbydaler

Try pinging 192.168.x.x addresses which are not listed as being connected. You may hit it. Not very technical I know...

Will only work if the router you are trying to ping is on the same subnet as your computer. Otherwise it will disappear into the ether and never reach anything.

Depending on how dumb it is, pinging 192.168.1.255 or 255.255.255.255 might get you an ARP response.

[Waldo Pepper]

This is small script I wrote to see what's connected to my system at any time. Copy the text into a pinger.bat file and run as the echo command suggests.
Put the .bat file into the C:\ directory, open a cmd box and use.
I find it useful to see if any of my fixed IP devices have shut down or stopped. i.e. My SB radios, cameras that are all fixed IP. Laptop, phone and tablet that aren't.
Enjoy!


@echo off
echo Use as "Pinger 192 168 1 10 20 to see attached devices between 192.168.1.10 & 192.168.1.20
SET t=%4
:start
ping -n 1 -l 1 -w 200 %1.%2.%3.%t% >nul
if %errorlevel%==0 echo Host %1.%2.%3.%t% RESPONDED
if %errorlevel%==1 echo Host %1.%2.%3.%t% IGNORED
SET /a t=t+1
If %t%==%5 Goto End
if %t%==254 Goto End
Goto start:
:End
echo COMPLETE
Pause