I have a speedstream 5260 modem using the 5660 router. In an attempt to set up the ip filter system (which didn't quite work for me as I didn't know what I was doing), I decided that the best way to go about it was to use a firewall instead and disable the NAPT system. So far so good.

Disabling the NAPT system, however, resulted in internet being completely cut off. So I went into the notes and it said that the IP had to be changed away from the regular in order for it to work. Specifically:


In the example below, they showed a telnet command for changing the ethernet IP and the netmask, which I did using the "friendlier" interface, setting the IP to change on reboot. I then went to the NAPT and disabled it, and finally reset the modem.

The result? I can no longer access the internet or the router. Which means that unless I can get the modem to manually reset (it has no such button), I have to find a way to telnet back in. I changed the IP from 10.0.0.2 to 192.168.0.1. I'm looking for some suggestions, or maybe someone to tell me that it's hopeless.

You may now laugh.

http://www.geocities.com/scrubbob/tutorial.html

Unfortunately, being the 'crippled' version of the 5260, my modem lacks the serial port for that type of upgrade/fix. Think I'll just have to get a new, better one (it's a free rental, anyway).

192.168.0.1 is not a 'legal' public address either.
are you sure that you actually changed the modem? (the 5260 is really a bridge and doesn't support telnet)
It sound like you changed the routers IP.
if you can get the modem replaced, do it, as the firmware maybe different for each ISP (not user upgradeable)
try connecting directly to it without the router and see what happens

I think it's the router IP, though it could as easily been the modem IP, as the modem and the router are in the same piece of hardware, so I don't think there's any way to connect to the modem or the router directly.

Thanks for the help.

Don't know if this will get you anywhere with your router....

SpeedStream1
also THIS
or THIS
Good Luck

can u have your communications company "push" the modem? they can usually reset it as long as teh MAC address did not change.

uhh.. dude, that tutorial is for the 5660

it seems the problem is you reset the IP of the router and don't know what it is, correct?

Time to do some sniffing- see what's out there. Sniff the non-public ranges and when you get a hit, that should be a very large clue that you've found something.

I'm not sure, but I think purging your ARP cache on a Windows box and renewing it may do the same thing too.