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xen-users
Re: [Xen-users] bad udp cksum by dns request in domU
On Fri, 2006-02-03 at 12:51 +0100, Nadja Kick wrote:
> try: ethtool -K eth0 tx off in domU.
This is also needed in dom0! I edited /etc/xen/scripts/network-bridge,
adding this command to the end of the op_start() function:
add_to_bridge2 ${bridge} ${pdev}
do_ifup ${netdev}
+ # disable ip checksum offloading for veth device
+ ethtool -K ${netdev} tx off
else
# old style without ${vdev}
For my Ubuntu/Debian Linux domU's, I just added a "post-up" line to the
file /etc/network/interfaces:
auto eth0
iface eth0 inet dhcp
post-up ethtool -K eth0 tx off
Note: the same line works for static IPs too
Note: I don't know how to do the same type of thing for any other Linux
distribution (RedHat, Suse, Mandrive, etc) - sorry
FreeBSD 6.0 apparently doesn't enable checksum offloading by default,
because I don't have a problem with him at all.
All my connectivity issues have now been eliminated.setup
Thanks!
--
Patrick Wolfe
email: pwolfe@xxxxxxxxxxxxxx
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