Connect to office vpn using speedy + linksys DD-WRT

Sometimes, i need to access to my computers/servers at office Local Area Network from home. i used to dialed vpn connection from windows XP home.but here, i'll share how to automatically connect to vpn server via linksys dd-wrt pptp client.

• Connect to linksys/dd-wrt management via browser, point it to http://192.168.1.1 (default ip management)
• Login and go to Services -> PPTP tab -> PPTP Client section

• Adjust Server IP or DNS Name, Remote Subnet, Remote Subnet Mask User and Password according to your network configuration.

Linksys dd-wrt pptp client wil automatically connect to our office vpn server when online. If we're enabled SSHD on linksys dd-wrt we can check and new ppp interface is up and new route to office LAN subnet.

ppp1      Link encap:Point-to-Point Protocol  
          inet addr:172.18.1.22  P-t-P:172.18.1.3  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1450  Metric:1
          RX packets:16 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3 
          RX bytes:798 (798.0 B)  TX bytes:634 (634.0 B)

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
172.18.1.3      0.0.0.0         255.255.255.255 UH    0      0        0 ppp1
125.165.72.1    0.0.0.0         255.255.255.255 UH    0      0        0 ppp0
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 br0
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 br0
172.16.0.0      0.0.0.0         255.240.0.0     U     0      0        0 ppp1
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
0.0.0.0         125.165.72.1    0.0.0.0         UG    0      0        0 ppp0