[ 4390.105309][T29659] gre: GRE over IPv4 demultiplexer driver
[ 4391.718173][T29682] ip_gre: GRE over IPv4 tunneling driver
[ 4439.879106][T30255] ip6_gre: GRE over IPv6 tunneling driver
[ 4476.181684][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4481.364581][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4485.844570][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4490.964557][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!