[ 4369.655078][T29218] gre: GRE over IPv4 demultiplexer driver
[ 4371.401368][T29241] ip_gre: GRE over IPv4 tunneling driver
[ 4421.266566][T29812] ip6_gre: GRE over IPv6 tunneling driver
[ 4445.928173][T30106] ping (30106) used greatest stack depth: 23472 bytes left
[ 4449.912448][T30156] ping (30156) used greatest stack depth: 23440 bytes left
[ 4454.988959][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4459.724040][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4463.947890][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4468.747915][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!