[ 4168.045349][T28645] gre: GRE over IPv4 demultiplexer driver
[ 4169.646006][T28668] ip_gre: GRE over IPv4 tunneling driver
[ 4218.655995][T29241] ip6_gre: GRE over IPv6 tunneling driver
[ 4257.249370][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4262.305299][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4266.593292][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4271.457281][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4438.413151][T31758] ping (31758) used greatest stack depth: 22896 bytes left