[ 4096.558840][T28722] gre: GRE over IPv4 demultiplexer driver
[ 4098.187618][T28745] ip_gre: GRE over IPv4 tunneling driver
[ 4146.863781][T29318] ip6_gre: GRE over IPv6 tunneling driver
[ 4169.310959][T29567] ping (29567) used greatest stack depth: 23440 bytes left
[ 4183.002766][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4187.930451][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4192.219437][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4197.082447][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!