Date: Mon, 14 Feb 2000 13:11:17 -0800 From: bmah@CA.Sandia.GOV (Bruce A. Mah) To: Tony Wells <awells@journalstar.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: traceroute question Message-ID: <200002142111.NAA15007@nimitz.ca.sandia.gov> In-Reply-To: <38A85721.D8711D1D@journalstar.com> References: <38A85721.D8711D1D@journalstar.com>
next in thread | previous in thread | raw e-mail | index | archive | help
--==_Exmh_-1757363394P Content-Type: text/plain; charset=us-ascii If memory serves me right, Tony Wells wrote: > I have a machine I'm having a problem getting to. When I do a > traceroute the machines a hop or two away from the target return the > times are followed by a '!N'. I checked the man page for traceroute > and it says that this means 'ICMP unreachable code N'. > > I guess what I'm looking for is a clarification of what exactly 'ICMP > unreachable code N' means. Take a look at /usr/include/netinet/ip_icmp.h. As ou look through the file, you'll see some #define statements for macros beginning with the words "ICMP_UNREACH_". Those are the ICMP unreachable code values, and the comments in each line give a rather terse explanation of what each code value signifies. For more information, you can consult RFC 792 from the IETF web site: http://www.ietf.org/ Hope this helps, Bruce. --==_Exmh_-1757363394P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 5.0i for non-commercial use MessageID: RqZJprzoxk4tljZdq+L/ZVLI8FvgWat4 iQA/AwUBOKhvddjKMXFboFLDEQKkuwCdEavAavXS5cgShIS+enAEkIUWdkIAn3rW 9Yxvg2PFoArjQ3JUU2Bg1L5R =L/Uq -----END PGP SIGNATURE----- --==_Exmh_-1757363394P-- 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?200002142111.NAA15007>