[ 3212.413406][T23665] gre: GRE over IPv4 demultiplexer driver
[ 3214.052964][T23688] ip_gre: GRE over IPv4 tunneling driver
[ 3262.802287][T24260] ip6_gre: GRE over IPv6 tunneling driver
[ 3279.320042][T24459] ping (24459) used greatest stack depth: 23696 bytes left
[ 3283.531024][T24509] ping (24509) used greatest stack depth: 23648 bytes left
[ 3296.329504][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3301.194412][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3305.354419][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3310.217438][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!