[ 4374.244124][T29218] gre: GRE over IPv4 demultiplexer driver
[ 4375.959152][T29241] ip_gre: GRE over IPv4 tunneling driver
[ 4426.338124][T29813] ip6_gre: GRE over IPv6 tunneling driver
[ 4448.048548][T30069] ping (30069) used greatest stack depth: 23440 bytes left
[ 4461.076676][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4466.132577][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4470.484564][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4475.540599][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!