[ 3999.481734][T29632] gre: GRE over IPv4 demultiplexor driver
[ 4001.190955][T29655] ip_gre: GRE over IPv4 tunneling driver
[ 4048.198395][T30230] ip6_gre: GRE over IPv6 tunneling driver
[ 4080.514213][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4085.186135][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4089.282114][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4094.018177][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!