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Community Member

Ping over specified ports?

Can I monitor which ports a ping is using, resp. am I able to determine the ports which a ping request and the reply have to use? Background is: HTTP from hosts at e0 of router A over WAN to router B and from there over proxy to web is running well, but HTTPS is not working. Proxy has two NICs wich belong to different network numbers.

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Community Member

Re: Ping over specified ports?

Pings don't use port numbers as such. Ping uses the ICMP protocol (neither UDP nor TCP).

ICMP uses "types" and "codes".

A Ping request is type 8 while an echo reply is type 0.

Codes are used to add detail to a type.

Type 3 is "destination unreachable"

Code 4 (of type 3) is "Fragmentation Needed and Don't Fragment was Set"

That said, You need to be sure that your proxy can manage https and that you don't have any access lists blocking it in or out. do you have any firewalls? Can the proxy machine itself use https?

Mick.

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