Mailinglist Archive: opensuse-security (520 mails)

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Re: [suse-security] PING when mail arrives
  • From: "Raffy" <suse@xxxxxxxx>
  • Date: Wed, 13 Dec 2000 22:29:48 +0100
  • Message-id: <000701c0654b$d244a300$a26647d4@xxxxxxxx>
> > Thanks for the help in setting up the firewall rules. I was more
concerned
> > about _WHY_ those pings came at all. Should I contact the admin of that
> > DNS-Server or is that a normal behaviour? Any comments?
> It's a normal behaviour. It's part of a process called 'route MTU
discovery'.
> ICMP is a basic part of the IP protocol suite, and you cannot claim to
> be compliant with the IP standards if you do not support ICMP.

Hang on. I am talking about PING (ICMP 8) not any other ICMP!!!!

And I am sure that it is the DNS server which pings me. It's an AIX box...

Raffy




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