I'm sorry to bother people about this again. What I thought was a solution to an earlier problem turns out not to have been a permanent one. I wanted to open some ports in the above modem, but couldn't access the modem's internal web server using Firefox for Linux. I was, however, able to do so using Internet Explorer (on my dual-boot computer) and to create an appropriate NAT rule. Then, when I restarted the computer and booted into Linux, the rule I'd created in Windows persisted in Linux. However, when I later powered the computer (and modem) down and then powered up again, the rule I'd created was gone. Since the WLUG wiki page on the modem referred to using the CLI and to some material about doing so, I got that material and studied it. I then did the following: - booted into Windows; - (re)created my NAT rule via the Web interface; - restarted in Linux; - tested the rule, which worked; - opened the CLI and issued the command to get me the rule, which worked; - issued the command to delete the rule, which worked; - issued the command to (re)create the rule, which failed. Here's the output: ******************* Welcome to Titanium ******************* D-Link Corp., Software Release R2.01M.B34.AU(021206a/T93.3.44) Copyright (c) 2001-2002 by D-Link Corp. login: admin password: Login Successful $get nat rule entry ruleid 2 Rule Id : 2 Flavor : REDIRECTION Interface : ALL Protocol : ANY Local addr from : 10.1.1.3 Local addr to : 10.1.1.3 Dest addr from : 0.0.0.0 Dest addr to : 255.255.255.255 Global addr from : 0.0.0.0 Global addr to : 0.0.0.0 Dest port from : 5235 Dest port to : 5237 Local port : 0 $delete nat rule entry ruleid 2 Entry Deleted $create nat rule entry ruleid 2 rdr destportfrom 5235 destportto 5237 lcladdrfro m 10.1.1.3 lcladdrto 10.1.1.3 Error: Invalid command $ I then rebooted into Windows and tried to (re)create the rule via telnet. Again, I got the invalid command message. I then tried simply to create a rule which appeared in the material about using the CLI. It wouldn't work either. If anyone can give any suggestion about what I'm doing wrong, I'd be very grateful. Thanks. I don't know what I'm doing wrong.