What is this?

This is the microcode for a forwarding ASIC written in p4 that converts ipv4 packets into ipv6 packets.

Dependencies

In order to build+install, you need p4c and bmv2 installed and available in $PATH.

How to run.

• Run make to build the switch, and run ./eth to set up the virtual ethernet ports. Then, run make switch to start the switch process.
• Use simple_switch_CLI, then enter table_add ipv4_match to_port_action 187.187.0.0/16 => 2 to add a route.
• Use tcpdump -xx -i veth2 to check the output of virtual port 1. Then, run ./sendp to send traffic to the router!
• You can check port1, the ingress port using tcpdump to watch the ipv4 packet coming in, and the egressing packet should be an IPv6 packet with an identical payload!