Config:
TAB: Services/VPN
PPTP Client Options = Enable
Server IP or DNS Name = 72.20.26.247 ( VPNReactor )
Remote Subnet = 10.87.248.0
Remote Subnet Mask = 255.255.255.0
MPPE Encryption = mppe required,no40,no56,stateless
MTU = 1450 ( Default )
MRU = 1450 ( Default )
NAT = Enable
User Name = zhenglei
Password = XXXYYYZZZ
TAB: Security/VPNPassThrough
PPTP PassThrough = Enable
Save Config & Reboot
Testing config:
TAB: Administration/Commands/ifconfig
Administration/Commands/ping 10.87.248.1
http://code.google.com/p/autoddvpn/wiki/HOWTO
http://code.google.com/p/autoddvpn/wiki/CustomFirmware
http://code.google.com/p/autoddvpn/wiki/DNSMasq
http://code.google.com/p/autoddvpn/wiki/DEBUG
http://www.robpeck.com/2010/05/dd-wrt-hacks-part-1-setting-up-a-pptp-vpn-endpoint/
http://www.dd-wrt.com/wiki/index.php/Static_PPTP_VPN_Client
http://www.astro.ff.vu.lt/~viktoras/toplanet/Iptables_command.htm