[ 1670.640391][T21987] gre: GRE over IPv4 demultiplexer driver
[ 1671.154135][T22010] ip_gre: GRE over IPv4 tunneling driver
[ 1682.969169][T22479] ip (22479) used greatest stack depth: 23488 bytes left
[ 1687.055114][T22581] ip6_gre: GRE over IPv6 tunneling driver
[ 1694.528894][T22924] ping (22924) used greatest stack depth: 22704 bytes left
[ 1697.391119][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1699.375061][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1701.232064][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1703.216069][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!