[ 1422.478662][T10752] gre: GRE over IPv4 demultiplexer driver
[ 1422.944608][T10775] ip_gre: GRE over IPv4 tunneling driver
[ 1441.421208][T11347] ip6_gre: GRE over IPv6 tunneling driver
[ 1447.875322][T11597] ping (11597) used greatest stack depth: 22672 bytes left
[ 1453.176620][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1455.352624][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1457.336590][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1459.575632][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!