[ 3145.573192][T27802] gre: GRE over IPv4 demultiplexor driver
[ 3146.740646][T27825] ip_gre: GRE over IPv4 tunneling driver
[ 3182.601760][T28397] ip6_gre: GRE over IPv6 tunneling driver
[ 3197.635753][T28654] ping (28654) used greatest stack depth: 23312 bytes left
[ 3207.080472][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3210.728403][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3213.929401][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3217.576392][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3266.583152][T29794] ping (29794) used greatest stack depth: 22048 bytes left