On Sat, 2013-11-23 at 16:29 -0800, Andris Kalnozols wrote: > Package: src:linux > Version: 3.10.11-1 > > Please close bug report #726676 as the observed problem had nothing to > do with proxy-arp. The correct diagnosis was provided by John Hughes > who filed bug report #729567. > > When I used ethtool to turn off the "generic-receive-offload" (GRO)" > network device option, the problem with OpenVPN TCP clients having > their sessions stall disappeared immediately. The problem is bypassed > by having the following statements at the end of `/etc/network/interfaces': > > post-up ethtool -K eth0 gro off > post-up ethtool -K eth1 gro off > > Since my OpenVPN server runs on a bastion host, I found that I had to > disable GRO on both network interfaces to fix the problem. Also, disabling > GRO on the OpenVPN server's tunnel devices had no effect in fixing the > issue. > > Thanks to Mr. Hughes for his diagnostic work and for taking the time > to notify me. This is still a bug, even if you can work around it by disabling GRO. Ben. -- Ben Hutchings Tomorrow will be cancelled due to lack of interest.
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