[ 1537.099236][T17380] gre: GRE over IPv4 demultiplexer driver
[ 1537.592872][T17403] ip_gre: GRE over IPv4 tunneling driver
[ 1553.609700][T17976] ip6_gre: GRE over IPv6 tunneling driver
[ 1564.151560][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1566.135523][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1567.990535][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1570.039526][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!