[ 3477.146349][T15401] gre: GRE over IPv4 demultiplexor driver
[ 3479.272232][T15425] ip_gre: GRE over IPv4 tunneling driver
[ 3540.131892][T15999] ip6_gre: GRE over IPv6 tunneling driver
[ 3583.610798][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3589.946671][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3595.130662][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3601.211698][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!