Date: Mon, 17 Dec 2001 01:11:40 +0100 From: "Frederico Costa" <frederico.costa@tiscali.no> To: "'Oliver, Michael W.'" <oliver.michael@gargantuan.com>, <freebsd-questions@FreeBSD.ORG> Subject: RE: Question about IPFW and ICMP:8.0 Message-ID: <000001c1868f$6c05a880$0301a8c0@maxi> In-Reply-To: <1DA741CA6767A144BAA4F10012536C27A931@LKLDDC01.GARGANTUAN.COM>
next in thread | previous in thread | raw e-mail | index | archive | help
Ok, thanks for the prmpt reply. Ok, i found another one ICMP:11.0. But are these echo request normal? And why are they always for the same server ? Thanks Frederico > -----Original Message----- > From: Oliver, Michael W. [mailto:oliver.michael@gargantuan.com] > Sent: 17 December 2001 01:10 > To: 'Frederico Costa'; freebsd-questions@FreeBSD.ORG > Subject: RE: Question about IPFW and ICMP:8.0 > > > See RFC 792.... > > ICMP 8.0 is an ECHO request, initiated from the source > address in your log file. > > =========== > Michael Oliver > > -----Original Message----- > From: Frederico Costa [mailto:frederico.costa@tiscali.no] > Sent: Sunday, December 16, 2001 7:04 PM > To: freebsd-questions@FreeBSD.ORG > Subject: Question about IPFW and ICMP:8.0 > > > Hi all ... > > I have been using FreeBSD for almost 5 years, and lately > because of the several attempts to penetrate my system, I > have set up ipfw to restrict access from the outside to my network. > > Everything is working quiet well, but I am getting the > following log from ipfw several times: > > server /kernel: ipfw: 65435 Deny ICMP:8.0 213.142.81.223 > 64.4.13.33 out via tun0 > > I have been able to understand most of the logs, but this one > I just understand that ICMP is trying to send something out > to server 64.4.13.33. but it is saying ICMP:8.0 What that means ? > > And why should my server initiate connection without my knowledge ? > > Thanks in advance for any information... > > Frederico > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?000001c1868f$6c05a880$0301a8c0>