Hi, As I can''t reply properly to an old thread I''m creationg a new one. Sorry about that please refer to: http://lists.xen.org/archives/html/xen-users/2012-06/msg00240.html I had a very similar issue on Debian. Upgrading the guest with recent kernels and userland tools didn''t helped unfortunately. The solution I found was to disable the TCP checksumming on the virtual interface (using ethtool). You can have it done automatically using a slightly custom vif-scritp: #!/bin/sh dir=$(dirname "$0") . $dir/xen-script-common.sh evalVariables "$@" : ${type_if:=vif} [ "$type_if" = "vif" ] && ethtool -K $vif tx off ethtool -k $vif >> /tmp/debug $dir/vif-bridge "$@" Works here. _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users