[ 2897.526229][T24678] gre: GRE over IPv4 demultiplexor driver
[ 2898.475597][T24701] ip_gre: GRE over IPv4 tunneling driver
[ 2929.916354][T25286] ip6_gre: GRE over IPv6 tunneling driver
[ 2942.672121][T25535] ping (25535) used greatest stack depth: 23616 bytes left
[ 2945.025441][T22985] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 2951.232917][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2954.624909][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2957.568941][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2960.896924][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!