[ 1233.220213][T26681] gre: GRE over IPv4 demultiplexer driver
[ 1233.658193][T26704] ip_gre: GRE over IPv4 tunneling driver
[ 1248.540853][T27276] ip6_gre: GRE over IPv6 tunneling driver
[ 1252.610938][T27482] ping (27482) used greatest stack depth: 23816 bytes left
[ 1253.598336][T27532] ping (27532) used greatest stack depth: 23760 bytes left
[ 1258.179610][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1260.100575][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1261.828573][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1263.748588][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!