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What Ports Do Ping Use?

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Name: Paul M
Date: February 16, 2005 at 15:22:23 Pacific
OS: Win 2k/XP/redhat9/2003
CPU/Ram: 2Gig/1Gig
Comment:

Can anybody tell me which ports ping uses?
I would like to block ping requests on my routing and remote access server. And on our Cisco firewall in work.



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Response Number 1
Name: tommycoolman
Date: February 16, 2005 at 20:46:44 Pacific
Reply:

Pings use the ICMP protocol and doesn't use ports like TCP or UDP.

You could block all ICMP packets and that would certainly take care of it. It is possible to block only pings, but the way to do that depends on your firewall.

For example, iptables would be

... -p icmp --icmp-type echo-request -j DROP


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Response Number 2
Name: Bryco
Date: February 17, 2005 at 03:46:06 Pacific

Response Number 3
Name: iamc
Date: February 17, 2005 at 09:40:19 Pacific
Reply:

Information != knowledge


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