[ 4371.666119][T20115] gre: GRE over IPv4 demultiplexor driver
[ 4373.794547][T20138] ip_gre: GRE over IPv4 tunneling driver
[ 4435.426273][T20709] ip6_gre: GRE over IPv6 tunneling driver
[ 4477.938452][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4484.083333][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4489.522470][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4496.754341][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!