[ 1453.985178][T25362] gre: GRE over IPv4 demultiplexer driver
[ 1454.473096][T25385] ip_gre: GRE over IPv4 tunneling driver
[ 1470.496860][T25957] ip6_gre: GRE over IPv6 tunneling driver
[ 1476.220099][T12147] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1478.040270][T26302] ping (26302) used greatest stack depth: 23344 bytes left
[ 1480.860021][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1482.908016][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1484.701013][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1486.684013][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!