To access the modem you have two IP addresses:

• you telnet to 10.0.0.138, or
• you telnet to 192.168.1.254

afterwords you type in username: Administrator and the password that you've setup when you've configured the modem.

Here is a quick guide on how to work with CLI on Thomson Speedtouch modems: http://www.sdharris.com/speedtouch510/

Here is how to enable configuration for FW Level:Standard with CLI:

{Administrator}=>:firewall level modify name=Standard index=2 readonly=disabled

Here you can read more about IDS and SIF on Thomson GW devices: ConfigGuide_SIF (.pdf) via http://forums.whirlpool.net.au/archive/1223082