How to add ARP protocol to basic.p4 program?

[ederollora]

Hi,

Just adding some information, we have a few topics talking about ARP in P4.

How define the arp header in the P4 program

HI @Lululouisa , could you please chare your error and program? here and example of P4 program, tutorials/basic.p4 at master · p4lang/tutorials · GitHub, in general you should define your header and then you can use it in the parser and in the ingress/egress pipeline. More in detail, tutorials/basic.p4 at master · p4lang/tutorials · GitHub here the parser check if the value of the ethernet type is IPV4 if yes the parser start to parse the IPv4 header. You have to do a similar things according …

Make a switch able to resolve an IP address with ARP

Hi steddy, welcome to the forum. This is pretty good that you already achieved it. As a nice extension, you could also play with the P4 code and make the switch behave as a proxy and answer as if the destination hosts did it. But this functionality might not indeed be necessary for your project course. At this point, it would help to determine some of the things you mention. For instance, Who is sending the ARP packet (I think I know what you mean, but I just want to clarify it)? Is the c…

Hope it helps. If you need help with the rules let us know.

Cheers,