[ 1295.990620][T30725] gre: GRE over IPv4 demultiplexer driver
[ 1296.481387][T30748] ip_gre: GRE over IPv4 tunneling driver
[ 1312.389468][T31326] ip6_gre: GRE over IPv6 tunneling driver
[ 1317.909467][T31575] ping (31575) used greatest stack depth: 22288 bytes left
[ 1322.820812][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1324.803781][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1326.659784][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1328.708773][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!