[ 1425.697807][T27828] gre: GRE over IPv4 demultiplexer driver
[ 1426.208426][T27851] ip_gre: GRE over IPv4 tunneling driver
[ 1442.308530][T28423] ip6_gre: GRE over IPv6 tunneling driver
[ 1446.811720][T28622] ping (28622) used greatest stack depth: 23664 bytes left
[ 1447.918627][T28672] ping (28672) used greatest stack depth: 23072 bytes left
[ 1452.871851][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1454.855818][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1456.775830][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1458.823820][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!