[ 3185.499475][T15374] gre: GRE over IPv4 demultiplexor driver
[ 3187.548209][T15398] ip_gre: GRE over IPv4 tunneling driver
[ 3251.474328][T15986] ip6_gre: GRE over IPv6 tunneling driver
[ 3294.502402][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3300.774289][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3305.894276][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3312.294361][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!