[ 3129.780676][T27813] gre: GRE over IPv4 demultiplexor driver
[ 3130.979311][T27836] ip_gre: GRE over IPv4 tunneling driver
[ 3135.024519][T27900] ping (27900) used greatest stack depth: 23376 bytes left
[ 3167.497529][T28407] ip6_gre: GRE over IPv6 tunneling driver
[ 3193.265816][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3196.978713][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3200.241744][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3204.017738][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3323.055505][T30879] ping (30879) used greatest stack depth: 23216 bytes left