[ 1549.541589][ T2806] gre: GRE over IPv4 demultiplexor driver
[ 1551.569664][ T2829] ip_gre: GRE over IPv4 tunneling driver
[ 1612.301919][ T3407] ip6_gre: GRE over IPv6 tunneling driver
[ 1638.661086][ T3656] ping (3656) used greatest stack depth: 23312 bytes left
[ 1655.471424][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1662.190347][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1667.630322][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1674.030358][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!