[ 3121.962887][T15718] gre: GRE over IPv4 demultiplexor driver
[ 3124.037837][T15741] ip_gre: GRE over IPv4 tunneling driver
[ 3185.644702][T16315] ip6_gre: GRE over IPv6 tunneling driver
[ 3211.209998][T16564] ping (16564) used greatest stack depth: 23360 bytes left
[ 3226.740665][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3232.629595][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3237.620641][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3243.572621][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!