[ 1342.574857][T22024] gre: GRE over IPv4 demultiplexer driver
[ 1343.187634][T22047] ip_gre: GRE over IPv4 tunneling driver
[ 1361.719801][T22618] ip6_gre: GRE over IPv6 tunneling driver
[ 1368.635938][T22868] ping (22868) used greatest stack depth: 23728 bytes left
[ 1371.131636][T22962] ping (22962) used greatest stack depth: 22720 bytes left
[ 1374.201004][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1376.505019][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1378.552975][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1380.921035][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!