[ 4289.948722][T20518] gre: GRE over IPv4 demultiplexor driver
[ 4292.246528][T20548] ip_gre: GRE over IPv4 tunneling driver
[ 4354.026696][T21122] ip6_gre: GRE over IPv6 tunneling driver
[ 4397.052008][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4403.387867][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4408.764893][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4414.908840][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!