[ 1316.663479][T30889] gre: GRE over IPv4 demultiplexer driver
[ 1317.224323][T30912] ip_gre: GRE over IPv4 tunneling driver
[ 1333.705692][T31483] ip6_gre: GRE over IPv6 tunneling driver
[ 1338.359372][T31682] ping (31682) used greatest stack depth: 23664 bytes left
[ 1341.606572][T31826] ping (31826) used greatest stack depth: 23072 bytes left
[ 1344.535004][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1346.582965][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1348.502036][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1350.614974][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!