What is the Ethernet Type II Protocol number for an ICMP echo request and reply?

Question

Hi I wanted to know what the Ethernet II Protocol number for an ICMP echo request and also for a ICMP echo reply?

score 10 · Answer 1 · answered Feb 09 '10 at 22:07

10

ICMP is an IP protocol not an Ethernet Protocol. It's protocol number is 1, for the rest see the IANA assignments document.

answered Feb 09 '10 at 22:07

Helvick

2

Just to add a little bit, echo-request is ICMP Type 8 and echo-reply is ICMP type 0 – Zypher Feb 09 '10 at 22:45
Sounds more like a little byte to me ;) – einstiien Feb 09 '10 at 22:50
@Zypher nicely clarified. – Helvick Feb 09 '10 at 23:17
In addition, the ICMP code number returned with the type can be invaluable in troubleshooting: http://en.wikipedia.org/wiki/Internet_Control_Message_Protocol – joeqwerty Feb 10 '10 at 03:39

score 2 · Answer 2 · answered Feb 11 '11 at 07:51

2

The Ethernet protocol number would be 0800, as for any IP frame.

answered Feb 11 '11 at 07:51

Simon Richter

2 Answers2