[ 4485.163612][T28658] gre: GRE over IPv4 demultiplexer driver
[ 4486.883600][T28681] ip_gre: GRE over IPv4 tunneling driver
[ 4537.054449][T29261] ip6_gre: GRE over IPv6 tunneling driver
[ 4571.979303][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4577.100186][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4581.515220][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4586.635176][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!