[ 3432.455082][T23133] gre: GRE over IPv4 demultiplexor driver
[ 3433.770098][T23156] ip_gre: GRE over IPv4 tunneling driver
[ 3470.560149][T23727] ip6_gre: GRE over IPv6 tunneling driver
[ 3479.814835][T23882] ping (23882) used greatest stack depth: 23024 bytes left
[ 3494.441059][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3498.152939][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3501.352954][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3505.128965][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!