[ 3605.382613][T28192] gre: GRE over IPv4 demultiplexor driver
[ 3607.032510][T28216] ip_gre: GRE over IPv4 tunneling driver
[ 3654.761949][T28791] ip6_gre: GRE over IPv6 tunneling driver
[ 3675.042553][T29041] ping (29041) used greatest stack depth: 22928 bytes left
[ 3687.662275][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3692.462125][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3696.559136][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3701.358181][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!