A massive online database of default passwords for networking hardware, embedded devices, and operating systems.
A perl script that can retrieve the config files of a variety of network devices for administrative or auditing purposes.
A utility which monitors routers by logging into them, pulling the config files, and comparing them against known-good files to see if anyone's been monkeying with them. Supports Cisco, Juniper, Foundry, Redback, ADC, MRT, Alteon, and HP gear, probably more.