[ 1161.023321][T28490] gre: GRE over IPv4 demultiplexer driver
[ 1161.298737][T28515] ip_gre: GRE over IPv4 tunneling driver
[ 1166.653213][T28900] ip (28900) used greatest stack depth: 23728 bytes left
[ 1173.059529][T29088] ip6_gre: GRE over IPv6 tunneling driver
[ 1176.717143][T29337] ping (29337) used greatest stack depth: 23576 bytes left
[ 1180.555100][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1182.220099][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1183.756100][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1185.355094][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!