what is the port numbers for ICMP,TCP,UDP

[praveennoc]

hi

[Rolf Fischer]

Hi,

for these protocols, the correct term is (IP) protocol number; the numbers are 1, 6 and 17.

http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml

HTH
Rolf

Sent from Cisco Technical Support Android App

[Antonio Moraes]

I agree with Rolf Fischer.

It seems questions about icmp having port numbers are recurrent.

Check out these links for mote details:

https://learningnetwork.cisco.com/thread/31935

https://learningnetwork.cisco.com/thread/39021

As for TCP and UDP por numbers, they range from 0 to 65535. You can't use port zero though. It's reserved.