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RE: [coLinux-users] Invalid checksums
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From: peter g. <plu...@bi...> - 2004-10-09 18:55:38
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is there a way to disable hardware checksums for your card? if so does changing it make any difference > -----Original Message----- > From: col...@li... > [mailto:col...@li...]On Behalf Of Xavier > Brouckaert > Sent: 09 October 2004 19:32 > To: col...@li... > Subject: [coLinux-users] Invalid checksums > > > Hi, > > I'm running CoLinux 0.6.2 on Windows 2000 SP4 to run a Debian image. > I've got invalid checksums which makes impossible to run an ssh > session between the host and colinux. I'm using a bridged ethernet > connection. > > My configuration is : > <?xml version="1.0" encoding="UTF-8"?> > <colinux> > <block_device index="0" > path="\DosDevices\e:\colinux\Debian-20040605-mit.ext3.1610mb" > enabled="true" /> > <block_device index="1" path="\DosDevices\e:\colinux\swap_512Mb" > enabled="true"></block_device> > <bootparams>root=/dev/cobd0</bootparams> > <image path="vmlinux" /> > <memory size="128" /> > <!-- <network index="0" type="tap" /> --> > <network index="0" type="bridged" name="Marvell" /> > </colinux> > > A sample tethereal trace (host=192.168.1.100, colinux=192.168.1.102) > of a putty ssh connection: > No. Time Source Destination > Protocol Info > 3 0.008588 192.168.1.100 192.168.1.102 TCP > 1163 > 22 [SYN] Seq=0 Ack=0 Win=65535 Len=0 MSS=1460 > 4 0.008769 192.168.1.100 192.168.1.102 TCP > 1163 > 22 [SYN] Seq=0 Ack=0 Win=65535 Len=0 MSS=1460 > 5 0.023884 192.168.1.102 192.168.1.100 TCP > 22 > 1163 [SYN, ACK] Seq=0 Ack=1 Win=5840 Len=0 MSS=1460 > 6 0.023902 192.168.1.100 192.168.1.102 TCP > 1163 > 22 [ACK] Seq=1 Ack=1 Win=65535 [CHECKSUM INCORRECT] Len=0 > 7 0.024081 192.168.1.100 192.168.1.102 TCP > [TCP Dup ACK 6#1] 1163 > 22 [ACK] Seq=1 Ack=1 Win=65535 Len=0 > 8 0.024373 192.168.1.102 192.168.1.100 TCP > 22 > 1163 [SYN, ACK] Seq=0 Ack=1 Win=5840 Len=0 MSS=1460 > 9 0.024387 192.168.1.100 192.168.1.102 TCP > 1163 > 22 [ACK] Seq=1 Ack=1 Win=65535 [CHECKSUM INCORRECT] Len=0 > 10 0.024564 192.168.1.100 192.168.1.102 TCP > [TCP Dup ACK 9#1] 1163 > 22 [ACK] Seq=1 Ack=1 Win=65535 Len=0 > > As you can see, there are some packets with an invalid checksum and > others with a valid checksum. > > The network card is a "Marvell Yukon Gigabit Ethernet > 10/100/1000Base-T Adapter, Copper RJ-45" running at 100Mbps. > > It only happens between the host and colinux. On colinux, I can > flawlessly install packages and so on... > > Any idea why it happens ? > > Thank you, > Xavier Brouckaert > > > ------------------------------------------------------- > This SF.net email is sponsored by: IT Product Guide on ITManagersJournal > Use IT products in your business? Tell us what you think of them. Give us > Your Opinions, Get Free ThinkGeek Gift Certificates! Click to > find out more > http://productguide.itmanagersjournal.com/guidepromo.tmpl > _______________________________________________ > coLinux-users mailing list > coL...@li... > https://lists.sourceforge.net/lists/listinfo/colinux-users |
