[ 3276.242315][T23671] gre: GRE over IPv4 demultiplexer driver
[ 3277.824220][T23694] ip_gre: GRE over IPv4 tunneling driver
[ 3327.007221][T24272] ip6_gre: GRE over IPv6 tunneling driver
[ 3356.259216][T24616] ping (24616) used greatest stack depth: 23552 bytes left
[ 3361.602932][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3366.593879][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3370.946826][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3375.938829][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!