[ 4644.035496][T23217] gre: GRE over IPv4 demultiplexor driver
[ 4646.143182][T23240] ip_gre: GRE over IPv4 tunneling driver
[ 4709.894130][T23812] ip6_gre: GRE over IPv6 tunneling driver
[ 4738.735789][T24062] ping (24062) used greatest stack depth: 21552 bytes left
[ 4755.846036][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4762.374934][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4767.686942][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4774.021942][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!