[ 4508.867174][T29653] gre: GRE over IPv4 demultiplexer driver
[ 4510.531190][T29676] ip_gre: GRE over IPv4 tunneling driver
[ 4560.009495][T30248] ip6_gre: GRE over IPv6 tunneling driver
[ 4594.385914][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4599.441789][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4603.665786][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4608.721778][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!