openwrt softether

Router interfaces
root@routermad:~# /sbin/ifconfig
br-lan    Link encap:Ethernet  HWaddr C0:4A:00:0A:24:9C
          inet addr:192.168.3.1  Bcast:192.168.3.255  Mask:255.255.255.0
          inet6 addr: fe80::c24a:ff:fe0a:249c/64 Scope:Link
          inet6 addr: fd05:c741:a732::1/60 Scope:Global
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:135634940 errors:0 dropped:0 overruns:0 frame:0
          TX packets:154645648 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:97989332412 (91.2 GiB)  TX bytes:145456486266 (135.4 GiB)

eth0      Link encap:Ethernet  HWaddr 20:CF:30:D3:38:26
          inet addr:78.84.67.xxx Bcast:78.84.95.255  Mask:255.255.224.0
          inet6 addr: fe80::22cf:30ff:fed3:3826/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:270256890 errors:0 dropped:0 overruns:11 frame:0
          TX packets:262913517 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2327987803 (2.1 GiB)  TX bytes:2522464887 (2.3 GiB)
          Interrupt:4

eth1      Link encap:Ethernet  HWaddr C0:4A:00:0A:24:9C
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:44806113 errors:0 dropped:56 overruns:270 frame:0
          TX packets:47252094 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1255337153 (1.1 GiB)  TX bytes:1372107395 (1.2 GiB)
          Interrupt:5

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:382570 errors:0 dropped:0 overruns:0 frame:0
          TX packets:382570 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:33687370 (32.1 MiB)  TX bytes:33687370 (32.1 MiB)

tap_soft  Link encap:Ethernet  HWaddr 00:AC:02:B1:41:B5 <----------------------------------- TAP interface created with softether
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:92453263 errors:0 dropped:442 overruns:0 frame:0
          TX packets:109029053 errors:0 dropped:7913 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:4261363555 (3.9 GiB)  TX bytes:2449961720 (2.2 GiB)

wlan0     Link encap:Ethernet  HWaddr C0:4A:00:0A:24:9C
          inet6 addr: fe80::c24a:ff:fe0a:249c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:470955 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:40844617 (38.9 MiB)


    Bridge setup (There is only one DHCP server, which gives out addresses for LAN and VPN clients, it is possible to configure seperate addresses for VPN and LAN, but I was not planning on doing that, because this configuration suits my use better.)

root@routermad:~# brctl show
bridge name     bridge id               STP enabled     interfaces
br-lan          7fff.c04a000a249c       no              eth1
                                                        wlan0
                                                        tap_soft <-- Softether TAP interface

    http://i.imgur.com/34VKi2a.png Softether TAP configuration.

    This is what it looks like on VPN clients side

Ethernet adapter Softether_1 - VPN Client:

   Connection-specific DNS Suffix  . : lan
   IPv6 Address. . . . . . . . . . . : fd05:c741:a732::ecf
   IPv6 Address. . . . . . . . . . . : fd05:c741:a732:0:f124:e834:bcdb:4da7
   Temporary IPv6 Address. . . . . . : fd05:c741:a732:0:a9da:9486:55ae:e97c
   Link-local IPv6 Address . . . . . : fe80::f124:e834:bcdb:4da7%13
   IPv4 Address. . . . . . . . . . . : 192.168.3.200
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.3.1