[ 1520.368693][T13423] gre: GRE over IPv4 demultiplexer driver
[ 1520.760355][T13447] ip_gre: GRE over IPv4 tunneling driver
[ 1536.010385][T14020] ip6_gre: GRE over IPv6 tunneling driver
[ 1546.105559][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1548.089522][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1549.881527][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1551.864532][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!