[ 4686.479661][T25348] gre: GRE over IPv4 demultiplexor driver
[ 4688.766458][T25372] ip_gre: GRE over IPv4 tunneling driver
[ 4758.899928][T25949] ip6_gre: GRE over IPv6 tunneling driver
[ 4789.312349][T26199] ping (26199) used greatest stack depth: 23296 bytes left
[ 4806.041991][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4812.121963][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4817.369939][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4823.705932][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4921.396488][T27339] ping (27339) used greatest stack depth: 22192 bytes left