Rws generates a pcap from a simple packet descriptor language. The pcaps can then be used for testing together with tools such as tcpreplay. It is especially use full to generate invalid packets that no off-the-shelf traffic generator would be able to generate, e.g a corrupt TCP packet that is tunneled inside a Teredo tunnel that is sent over GTP-u. If a field in a protocol isn't specified resonable defaults are used.

RWS supports:

• Ethernet
• Fragv6 option
• GRE
• GTP-u
• Hexpayload
• HopByHop option
• Icmp
• IcmpV6
• IPv4
• IPv6
• L2TP
• PadN option
• PPP
• TCP
• Teredo
• UDP

Numerous examples are provided in the samples dir.

Example: Given the file simple.pkt which contains: (eth (ipv4 src=2.2.2.2 dst=10.10.10.10 (udp))) the command: ./dist/build/rws/rws -i simple.pkt -o out.pcap

will generate a pcap file with a single UDP packet from 2.2.2.2 to 10.10.10.10.