nwdiag - simple network-diagram image generatorsΒΆ

nwdiag generates network-diagram images from .diag files (similar to graphviz’s DOT files).

You can get diagrams like this:

And, nwdiag package includes more scripts called rackdiag and packetdiag .

rackdiag generates rack-structure diagram images:

packetdiag generates packet header diagram images:

blockdiag 0 8 16 Source Port Destination Port Sequence Number AckNo Offset Reserved