[ 4324.917396][T20418] gre: GRE over IPv4 demultiplexor driver
[ 4327.029810][T20442] ip_gre: GRE over IPv4 tunneling driver
[ 4389.700351][T21015] ip6_gre: GRE over IPv6 tunneling driver
[ 4433.341394][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4439.293343][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4444.477323][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4450.621301][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!