On Tuesday 22 May 2007, David Miller wrote: > From: YOSHIFUJI Hideaki / 吉藤英明 <[EMAIL PROTECTED]> > Date: Tue, 22 May 2007 18:36:47 +0900 (JST) > > > In article <[EMAIL PROTECTED]> (at Tue, 22 May 2007 10:57:38 +0200), Eric Dumazet <[EMAIL PROTECTED]> says: > > > > I have tried to set up quagga with tcp-md5 support from kernel. All > > > > seems ok with a intel e100 NIC, but as i testetd with a intel e1000 > > > > NIC the tcp packets have an invalid md5 digest. > > > > If i run tcpdump on the mashine the packets are generated, it shows > > > > on the outgoing interface invalid md5 digests. > > > > Are there known issues about tcp-md5 and e1000 NICs? > > > > > > You could try "ethtool -K tx off", and/or other ethtool -K settings > > > > Disabling offloading should help; currently tcp-md5 stack > > blindly copy md5-signature from the first segment > > which is not appropriate for rest of segments. > > It is clear we should disable TSO for sockets making use of TCP-MD5.
disabling tso works. thanks - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
