Access to modem behind Router N66U

[Sharbe]

Hi,
I am still having problems to get access to my speedtouch modem behind the RT-N66U.
I tried to step through the guide by RMerlin in this thread but on the IP I expect to get the modem webinterface i just get the webinterface of the ASUS Router.

I am sorry to duplicate the posting also in this Forum, but I got no answers in the other thread
Your help is really appreciated.

Thanks a lot, Sharbe

 

[Martineau]

Hi,
I am still having problems to get access to my speedtouch modem behind the RT-N66U.
I tried to step through the guide by RMerlin in this thread but on the IP I expect to get the modem webinterface i just get the webinterface of the ASUS Router.

I am sorry to duplicate the posting also in this Forum, but I got no answers in the other thread
Your help is really appreciated.

Thanks a lot, Sharbe

I used nat-start and wan-start to configure access to my modem:

nat-start

# Access to the TP-LINK TD-8816 ADSL modem (whilst in bridge mode) can be extremely useful to check statistics/line noise/errors etc.
# NOTE: wan-start script is also required!!!

# TP-LINK TD-8816 default I/P address is 192.168.1.1 so we must have defined interface 192.168.1.2 ...see wan-start
logger -t "($(basename $0))" $$ Adding NAT route for Martineau TP-LINK TD-8816 ADSL modem : 192.168.1.1 `nvram get wan0_ifname` 

iptables -t nat -I POSTROUTING -o `nvram get wan0_ifname` -j MASQUERADE

wan-start

   # Access to the TP-LINK TD-8816 ADSL modem (whilst in bridge mode)can be extremely useful to check statistics/line noise/errors etc.
   # NOTE: nat-start script is also required!!!

   # TP-LINK TD-8816 default I/P address is 192.168.1.1 so we need to define 192.168.1.2

   # So now we have (a minimum of) two subnets; Martineau LAN (10.88.8.*) and DSL Modem (192.168.1.*) 
   # If it doesn't work, then sometimes  a modem will only serve its web interface to devices on the same subnet.
   # You could try to change the modem's subnet mask to 255.255.254.0 (or 255.255.0.0), maybe that helps. 

   logger -t "($(basename $0))" $$ Adding ifconfig for Martineau TP-LINK TD-8816 ADSL modem : 192.168.1.1
   ifconfig `nvram get wan0_ifname`:0 192.168.1.2 netmask 255.255.255.0

Regards,

 

[scajjr2]

or just change the ip address of the router. I changed mine to 192.168.1.4 so 192.168.1.1 takes me to my SB6141 cable modem.

sam

 

[Sharbe]

Thanks for your help.
The hint in Martineaus script helped:
# If it doesn't work, then sometimes a modem will only serve its web interface to devices on the same subnet.
# You could try to change the modem's subnet mask to 255.255.254.0 (or 255.255.0.0), maybe that helps.

Now I am able to connect directly to the modems webinterface @ 192.168.1.1