Question { 19346 }

what is the port number for arp,rarp,icmp,igmp?

Answer

* IGMP - Internet Group Management Protocol is a
internet/network layer protocol.
* ICMP - Internet Control Message Protocol is a
internet/network layer protocol.
* ARP - Address resoultion protocol to resolve network layer
address to data link layer address
* RARP - Reverse Address resoultion protocol to resolve data
link layer address to network layer address.

Port numbers are applicable only for application layer
protocols running over UDP or TCP.