[Firehol-support] ping vs. ICMP

Costa Tsaousis costa at tsaousis.gr
Sun Jun 26 09:39:32 BST 2005


The ICMP service allows any ICMP message, while the PING service only
allows ICMP echo-request and ICMP echo-reply.



On Wed, June 22, 2005 12:53, Martin Kong said:
> I am using FireHOL to set up the firewall for a standalone server.  I
> would like do ping to Internet from the server AND ping to the server from
> Internet.  So I have:
> client icmp accept
> server icmp accept
> It seems to work.
> I'm just wondering what the "ping" service is for?  Should I use that
> instead of icmp?
> Thanks and Regards,
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