[ 4704.813352][T24552] gre: GRE over IPv4 demultiplexor driver
[ 4707.000250][T24575] ip_gre: GRE over IPv4 tunneling driver
[ 4715.102724][T24640] ping (24640) used greatest stack depth: 23368 bytes left
[ 4775.016800][T25148] ip6_gre: GRE over IPv6 tunneling driver
[ 4813.807563][T25491] ping (25491) used greatest stack depth: 23328 bytes left
[ 4820.019687][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4826.484622][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4831.924630][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4838.131629][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!