Hi, For unknown reason, the conntrack protocol helper for GRE only supports IPv4 and does not support IPv6. Since the generic helper code won't accept GRE anymore, I am getting "conntrack: generic helper won't handle protocol 47", even when the nf_conntrack_proto_gre module is loaded. No conntrack entry is added for the IPv6 GRE, causing all the inbound packet to be rejected/dropped. Is there a reason why IPv6 is not supported in nf_conntrack_proto_gre? Should I add a nf_conntrack_l4proto_gre6 object and register it, similar to the nf_conntrack_l4proto_gre4 object? Sincerely, Ignatius Cheng | Principal Engineer - Software Broadcom Limited.| (O) 604-233-8513 x38513 ignatius.cheng@xxxxxxxxxxxx
