[ 3507.077602][T17608] gre: GRE over IPv4 demultiplexor driver
[ 3509.052031][T17632] ip_gre: GRE over IPv4 tunneling driver
[ 3573.233300][T18204] ip6_gre: GRE over IPv6 tunneling driver
[ 3615.989457][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3621.813398][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3626.677382][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3632.437385][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!