[ 4647.294792][T23228] gre: GRE over IPv4 demultiplexor driver
[ 4649.513221][T23251] ip_gre: GRE over IPv4 tunneling driver
[ 4715.263190][T23826] ip6_gre: GRE over IPv6 tunneling driver
[ 4760.628514][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4766.965388][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4772.468383][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4778.804463][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!