Date: Sun, 19 Sep 1999 22:12:11 +0200 From: Barry Irwin <bvi@rucus.ru.ac.za> To: AAKopeyko@rio.ru Cc: freebsd-ipfw@FreeBSD.ORG Subject: Re: what is 'ICMP:3.13' ? Message-ID: <19990919221211.Q5613@rucus.ru.ac.za> In-Reply-To: <19990916152801.7FE51153FA@hub.freebsd.org> References: <3.0.32.19990915164626.02309970@mail.ok-connect.com> <19990916152801.7FE51153FA@hub.freebsd.org>
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On Thu 1999-09-16 (19:30), AAKopeyko@rio.ru wrote: > Hi All! > > Yesterday I add new rule > > ipfw add 802 allow log icmp from any to XXX.XXX.XXX.XXX > > and now have a lot of > > > ipfw: 802 Accept ICMP:3.13 XXX.XXX.XXX.XXX yyy.yyy.yyy.yyy in via tun0 > > in log. > > Can anybody explain what 'ICMP type 3 code 13' message is? rfc 792, 950 never > talk about it. From TCP/IP Illustrated volume I ( Stevens) ICMP Type 3 code 13: communication administritavely prohibited by filter (Error stat) In other words somwhere your traffic is being blocked by a server/router which is being kind enough to tell you that this has been blocked by an adminitritive rule, rather than the service being unavalible etc. Barry -- -------------------------------------------------------------------------- Barry Irwin IRC: balin@zanet (#linux) bvi@moria.org http://rucus.ru.ac.za/~bvi Whois BI414 - PMPN8EZ - http://moria.org -------------------------------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ipfw" in the body of the message
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