[ 4378.559897][T29677] gre: GRE over IPv4 demultiplexer driver
[ 4380.199588][T29700] ip_gre: GRE over IPv4 tunneling driver
[ 4431.527635][T30272] ip6_gre: GRE over IPv6 tunneling driver
[ 4461.922759][T30616] ping (30616) used greatest stack depth: 23440 bytes left
[ 4467.161122][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4472.217046][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4476.505015][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4481.433030][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!