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echo and echo-reply

aksher
Level 1
Level 1

‎10-11-2006 11:41 AM - edited ‎03-09-2019 04:29 PM

what's the diff between

icmp permit any echo inside

icmp permit any echo-reply inside

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4 Replies 4

stomasko
Level 4
Level 4

‎10-11-2006 12:18 PM

echo is the outgoing ping message.

echo-reply is the response.

Hope that helps.

Steve

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aksher
Level 1
Level 1
In response to stomasko

‎10-11-2006 01:19 PM

does echo means only the ping request?

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aksher
Level 1
Level 1
In response to stomasko

‎10-11-2006 01:31 PM

does echo means only the ping request?

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mmorris11
Level 4
Level 4
In response to aksher

‎10-11-2006 01:51 PM

Yes. Check this doc:

http://www.iana.org/assignments/icmp-parameters

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