[ 4656.632131][T24725] gre: GRE over IPv4 demultiplexor driver
[ 4658.781527][T24748] ip_gre: GRE over IPv4 tunneling driver
[ 4724.200812][T25321] ip6_gre: GRE over IPv6 tunneling driver
[ 4732.148905][T25383] ping (25383) used greatest stack depth: 23552 bytes left
[ 4764.318809][T25665] ping (25665) used greatest stack depth: 23328 bytes left
[ 4770.747809][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4777.275768][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4782.715741][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4789.307815][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!