[ 4311.761240][T29230] gre: GRE over IPv4 demultiplexer driver
[ 4313.386693][T29253] ip_gre: GRE over IPv4 tunneling driver
[ 4362.856487][T29825] ip6_gre: GRE over IPv6 tunneling driver
[ 4396.854048][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4401.782954][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4406.005939][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4410.933967][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4490.038164][T31303] ping (31303) used greatest stack depth: 22848 bytes left