[ 1447.227598][T14677] gre: GRE over IPv4 demultiplexer driver
[ 1447.686963][T14700] ip_gre: GRE over IPv4 tunneling driver
[ 1463.287320][T15271] ip6_gre: GRE over IPv6 tunneling driver
[ 1468.871740][ T5537] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1470.722607][T15615] ping (15615) used greatest stack depth: 23344 bytes left
[ 1473.591663][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1475.576658][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1477.432661][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1479.416661][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!