Am 15.07.2010 13:52, schrieb Michael S. Tsirkin: > This adds a `CHECKSUM' target, which can be used in the iptables mangle > table. > > You can use this target to compute and fill in the checksum in > a packet that lacks a checksum. This is particularly useful, > if you need to work around old applications such as dhcp clients, > that do not work well with checksum offloads, but don't want to > disable checksum offload in your device. > > The problem happens in the field with virtualized applications. > For reference, see Red Hat bz 605555, as well as > http://www.spinics.net/lists/kvm/msg37660.html > > Typical expected use (helps old dhclient binary running in a VM): > iptables -A POSTROUTING -t mangle -p udp --dport bootpc \ > -j CHECKSUM --checksum-fill > > Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx> > Includes fixes by Jan Engelhardt <jengelh@xxxxxxxxxx> Applied, thanks Michael. -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
