1. NETwork DUmp data Displayer and Editor for tcpdump trace files It is a GUI-based tool that allows you to make detailed changes to packets in tcpdump trace files, in particular, it can currently do the following: * Set the value of every field in IP, TCP and UDP packet headers. ICMP support will be finished shortly. * Copy, move and delete packets in the trace file. * Fragment and reassemble IP packets. * Netdude constantly communicates with a tcpdump process to update the familiar tcpdump output that corresponds to the trace. This also means that any changes made to your local version of tcpdump are reflected in Netdude. * Plugin architecture: people can easily add plugins for specific tasks. The code comes with a plugin for checksum correction in IP, TCP and UDP, and a dummy plugin. * Through the plugin mechanism, Netdude provides a good facility for writing tcpdump trace file filters. From Debian 3.0r0 APT