For PPPoE/PPPoA INTERNET CONNECTION TYPE: 
 
Type in the Username and Password (and PPPoE Service Name, if 
required by your ISP).   
     
Choose PPPoE LLC/Snap-Bridging, PPPoE VC-mux, PPPoA 
LLC/encapsulation and PPPoA VC-mux in drop-down menu. 
 
You can use Static IPv4 Address check box and type Static IP. 
 
Set MTU value which you want but should be less than 1492.   
 
PPP IP Extension: Router passes the obtained IP address to the local 
PC and acts as a bridge only modem. 
 
DNS AND DEFAULT GATEWAY 
 
Select Obtain DNS server address automatically to get DNS from 
your ISP.   
 
Or  Select  Use  the  following  DNS  server  addresses  to  specify  the 
DNS  server  IPs  in  the  Preferred  DNS  server  and  Alternate  DNS 
server.