R502 Multifunctional Broadband Router User Guide     
DNS 
Server: 
202.96.134.133
Secondary 
DNS: 
202.96.128.68 
 
 
 
Then you have to fill in above 
parameters as right Figure. 
D. If you select “PPP Tunneling 
Protocol (Can support 
multi-protocol Virtual Private 
Networks)(VPN)(PPTP). 
PPTP Account: fill in with your 
Account provided by your ISP. 
PPTP Password: fill in with your 
password provided by your ISP. 
PPTP Gateway: Including 
Domain name and IP Address. 
You only need to fill in one of 
them. 
MTU: default value is 1492, you 
may change it according to your 
need. 
MPPE: If you want the 
connection between your Router 
and Server encrypted, then 
enable it, otherwise disable it. 
 
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