[ 4438.866785][T26082] gre: GRE over IPv4 demultiplexor driver
[ 4440.915248][T26105] ip_gre: GRE over IPv4 tunneling driver
[ 4468.121964][T26358] ping (26358) used greatest stack depth: 22720 bytes left
[ 4503.329871][T26678] ip6_gre: GRE over IPv6 tunneling driver
[ 4546.780829][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4552.668763][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4557.660797][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4563.676747][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!