On Fri, 7 Jan 2011, Bjoern A. Zeeb wrote: > On Fri, 7 Jan 2011, Daniel Eischen wrote: > >> When sending multicast packets to a socket that is _not_ >> bound to the multicast address, this generates bad UDP >> checksums. This use to work and was broke sometime between >> the middle of October and late December as far as I can >> tell. > > My very best guess would be: r215110 It doesn't look very harmful, but I'll try backing it out. > Otherwise the usual questions apply though I am almost certain you got > that right: > > - dumps taken on the receiver side not the sender as Yes, dumps were taken on both receiving Solaris 10 and FreeBSD hosts. > - NIC offload capabilities might confuse tcpdump and you might > want to turn them off and test as well w/o them Disabling checksum offloading makes no difference, and the problem occurs on all interfaces I have tested (sis, bfe, wpi). -- DEReceived on Fri Jan 07 2011 - 10:17:49 UTC
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