RANCID (Really Awesome New Cisco confIg Differ) collects a router's (or device's) configuration, including software and hardware (cards, serial numbers, etc.), and uses CVS to display differences from a previous collection. It supports Cisco routers, Juniper routers, Catalyst switches, Foundry switches, Redback NASs, and ADC EZT3 muxes. The Beta version currently includes support for Bay Networks (nortel) routers and Extreme switches. Rancid also includes a lookingglass and the device login scripts may be used to automate a number of tasks.
Netomata Config Generator (NCG) creates complete, ready-to-install configuration files for network devices and services from a common lightweight model of a network. Because these configuration files are generated programmatically and generated from a shared model, they are more likely to be consistent and complete, making a network more reliable, easier to troubleshoot, and easier to expand in both size and functionality. The inputs to NCG are a model describing the network and templates for the configuration files of the various devices (routers, switches, load balancers, firewalls, etc.) and services (SNMP, DNS, DHCP, etc.). From these inputs, NCG produces complete, consistent, ready-to-install configuration files for those devices and services.