[ 1521.278351][T12692] gre: GRE over IPv4 demultiplexer driver
[ 1521.680546][T12716] ip_gre: GRE over IPv4 tunneling driver
[ 1537.167123][T13289] ip6_gre: GRE over IPv6 tunneling driver
[ 1547.320338][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1549.304304][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1551.160297][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1553.143311][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!