[ 1334.250584][T30342] gre: GRE over IPv4 demultiplexer driver
[ 1334.748780][T30365] ip_gre: GRE over IPv4 tunneling driver
[ 1350.681042][T30936] ip6_gre: GRE over IPv6 tunneling driver
[ 1355.210315][T31143] ping (31143) used greatest stack depth: 23664 bytes left
[ 1361.168142][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1363.151115][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1365.007130][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1366.991127][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1371.761221][T31746] ip (31746) used greatest stack depth: 23600 bytes left
[ 1388.220031][T32324] ping (32324) used greatest stack depth: 23136 bytes left