Dlink dir-655?
Dlink Dir-825 have the G band and N band simultaneously
Dlink Dir-825 have the G band and N band simultaneously
Originally Posted by pippolo ![]() It's normal. Usually, you can use an ADSL modem connected to a separated router by an ethernet cable only with PPPoE. With PPPoA you have to use an integrated modem+router (this is valid generally, but other solution are possible). When you have an ADSL modem and a separated router, in order to avoid a double NAT and double DHCP, the modem is usually configured in 'full bridge', ie, the modem only reads the ADSL flow, extracts the packets from it and sends them directly to the router that performs all the other work (NAT, firewall, etc). Since the modem doesn't do much translation, the packets received from the ISP are transmitted to the router using the inner connection. If the router and the modem are separated and connected using an ethernet, the packets have to be transported by the ethernet. If the packets are PPPoE (PPP packets encapsulated into an Ethernet packet) it's all ok, but if them are of type PPPoA (PPP over ATM, the NORMAL ADSL packets... also PPPoE is transmitted using ATM) you can't transmits them over the ethernet cable. I read of some special ADSL modems capable to translate PPPoA into PPPoE packets still using the full bridge mode (ad example some Draytek's). It's called PPPoE to PPPoA bridging (or pass through). Usually, the 'normal' ethernet modems aren't capable to do full bridging in PPPoA mode. In this case, you can still try another mode called 'half bridge'. You can find more info on the web, ad example at this address, or this. If you try the half bridge, remember that usually the problems aren't caused by the modem but by the router (the incompatibility of some routers to correctly manage the 'half bridge' trick; a return address placed outside of the netmask). I'm actually using the 'half bridge' trick with a Netgear DM111P ethernet modem connected to a Mikrotik RB433AH Routerboard. I read on forums that a lot of Netgear Routers (usually good routers) have incompatibility problems with the 'half bridge', so take a look on the several forums on the web before to buy a specific router. An integrated ADSL modem + router is much more simple solution, but sometime the separated version is necessary. My old Netgear DG834PN router was a relatively good router, but it was unable to manage my ADSL traffic (a lot of opened connections) and was necessary to manually reboot it almost every day. Usually the best router doesn't have a modem integrated and the separated solution is the only possible. |