[ 1425.514537][  T726] gre: GRE over IPv4 demultiplexer driver
[ 1425.955259][  T749] ip_gre: GRE over IPv4 tunneling driver
[ 1441.296210][ T1323] ip6_gre: GRE over IPv6 tunneling driver
[ 1448.456073][ T1667] ping (1667) used greatest stack depth: 23344 bytes left
[ 1451.272928][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1453.255897][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1455.047904][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1457.031915][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!