Sending a "ping": Which (ICMP) ports must be open in firewall to receive answer ?

Ok, I sent a ping to a remote computer which is definitively alive and responding.

However I get a timeout at my local computer because of too restrictive firewall rules.

Which ICMP ports must be open to be able to receive all possible answers from the target machine ?

Peter

On 2007-03-29, Peter Waibel <(E-Mail Removed)> wrote:
> Which ICMP ports must be open to be able to receive all possible
>answers from the target machine ?

echo-request and echo-reply.
Davide

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Hitler was German and Beethoven Austrian.

Hello,

Davide Bianchi a écrit :
> On 2007-03-29, Peter Waibel <(E-Mail Removed)> wrote:
>
>>Which ICMP ports must be open to be able to receive all possible
>>answers from the target machine ?
>
> echo-request and echo-reply.

Add the usual destination-unreachable.
Note : These are ICMP types and codes. There are no ICMP ports.