bugzilla-daemon at bugzilla.netfilter.org
2012-Mar-20 19:36 UTC
[Bug 779] New: Netfilter on bridge interface containing a defective NIC
http://bugzilla.netfilter.org/show_bug.cgi?id=779 Summary: Netfilter on bridge interface containing a defective NIC Product: netfilter/iptables Version: unspecified Platform: i386 OS/Version: All Status: NEW Severity: major Priority: P5 Component: bridging AssignedTo: netfilter-buglog at lists.netfilter.org ReportedBy: calebc2099 at yahoo.com Estimated Hours: 0.0 If a physical ethernet interface is administratively prevented from rx or tx checksum offloading due to a defect in the NIC eg: ethtool --offload eth2 rx off and the NIC participates in a bridge interface eg: br0 = eth1,eth2 Netfilter appears to causes rx or tx checksum offloading on all NICs participating in the bridge interface resulting in corrupted packets. eg: iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE configuration used for examples: eth0 - Internet interface br0 = eth1,eth2 - Local interface eth0 NIC = Intel eth1 NIC = Intel eth2 NIC = Realtek R8111D -- Configure bugmail: http://bugzilla.netfilter.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. You are watching all bug changes.