[ 1468.227386][T10073] gre: GRE over IPv4 demultiplexer driver
[ 1468.730969][T10097] ip_gre: GRE over IPv4 tunneling driver
[ 1486.762462][T10670] ip6_gre: GRE over IPv6 tunneling driver
[ 1494.336439][T10922] ping (10922) used greatest stack depth: 22448 bytes left
[ 1500.247892][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1502.615718][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1504.727759][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1507.095754][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!