You can find the default modem password for you model:
| Model | Login | Username | Password |
|---|---|---|---|
| IRX ROUTER | TELNET | !root | (none) |
| LIVINGSTON PORTMASTER 3 | TELNET | !root | (none) |
| OFFICEROUTER | TELNET | !root | (none) |
| PORTMASTER 2R | TELNET | root | (none) |