NetSPoC provides its own language for describing security policy and topology of a network. The security policy is a set of rules that state which packets are allowed to pass the network and which not. NetSPoC is topology aware: a rule for traffic from A to B is automatically applied to all managed packet filters on the path from A to B.
This software was developed as a replacement for Cisco's CSPM (Cisco Secure Policy Manager). See file CSPM.html for a comparison. For CSPM users we have developed an export utility which converts most of the data of a cpm file into NetSPoC's own language.