Date: Fri, 8 Jul 2011 12:05:37 +0200 From: "C. P. Ghost" <cpghost@cordula.ws> To: freebsd-questions@freebsd.org Subject: Re: tftp - bad checksum error? can't transfer file Message-ID: <CADGWnjXwK=OrKCtYPSi=ziGZ5ZKEeSsPb=_MrtbSmQTBro9nyw@mail.gmail.com> In-Reply-To: <20110707224435.GA27624@mech-cluster241.men.bris.ac.uk> References: <20110707224435.GA27624@mech-cluster241.men.bris.ac.uk>
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On Fri, Jul 8, 2011 at 12:44 AM, Anton Shterenlikht <mexas@bristol.ac.uk> w= rote: > I'm trying to troubleshoot tftpd(8). (...) > =A0 =A0192.168.232.10.15388 > buzi.tftp: [no cksum] =A025 RRQ "/bsd.rd.IP= 32" octet ( > o > 23:25:21.024160 IP (tos 0x0, ttl 64, id 56, offset 0, flags [none], proto= UDP (1 > 7), length 30, bad cksum 0 (->293a)!) > =A0 =A0buzi.19330 > 192.168.232.10.15388: [udp sum ok] UDP, length 2 > 23:25:51.013759 IP (tos 0x0, ttl 255, id 256, offset 0, flags [none], pro= to UDP > (17), length 53) I've had some trouble netbooting / jumpstaring recently with a similar pattern (using RARP/BOOTP/TFTP/NFS). It turned out to be a dying port on the switch whose errors were masked by TCP in day to day use, but alas were too frequent for UDP. -cpghost. --=20 Cordula's Web. http://www.cordula.ws/
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