[ 4340.329335][T29228] gre: GRE over IPv4 demultiplexer driver
[ 4342.000203][T29251] ip_gre: GRE over IPv4 tunneling driver
[ 4392.718817][T29822] ip6_gre: GRE over IPv6 tunneling driver
[ 4422.367394][ T6749] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4427.166231][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4432.222268][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4436.638247][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4441.631268][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!