[ 4374.402911][T29225] gre: GRE over IPv4 demultiplexer driver
[ 4376.102493][T29252] ip_gre: GRE over IPv4 tunneling driver
[ 4424.067211][T29830] ip6_gre: GRE over IPv6 tunneling driver
[ 4444.417078][T30079] ping (30079) used greatest stack depth: 23440 bytes left
[ 4456.998100][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4461.862995][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4466.023024][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4470.886043][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!