[ 4435.354184][T25941] gre: GRE over IPv4 demultiplexor driver
[ 4437.372008][T25965] ip_gre: GRE over IPv4 tunneling driver
[ 4499.026677][T26538] ip6_gre: GRE over IPv6 tunneling driver
[ 4506.520349][T26599] ping (26599) used greatest stack depth: 23008 bytes left
[ 4541.681546][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4547.570424][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4552.561466][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4558.641430][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!