Bridged vs PPPoE ???

[abudahim]

hi every one
this is my first post and forgive me for my bad english because it is not my first language.
Im also beginner in networking stuff

my question is: i have a gateway that supports many types of connections such as PPPoE , Bridged , Routed and PPPoA.

my ISP told me to use the PPPoE connection. i dont know what is it ? all what i know is that i can enter my user name and password in the gateway it self. while in Bridged mode, my gateway internet led red and then i have to create a WAN connection in windows and then through that connection i can login to internet with little increase in browsing speed which makes it better for me than the PPPoE.

i want to know at least when to use a Bridge mode and when to use the PPPoE mode.
and why Bridged is a little bit faster than the PPPoE ?

more info about the other types of connection are appreciated
thank you

[YARDofSTUF]

PPPoE is how the router connects to your dsl

Gateway, for my linksys is used when its the only router, and bridged should be for when you are connecting many networks together, i think.

[mccoffee]

Bridge basiclly makes the device works like a switch where it forwards the traffic by mac addresses in that so you have no security on the modem/router this would probably be the most effecent way. You might have to use xp's pppoe client to connect in this mode.


PPPOE is bascilly a setting on the router so that the mtu for pppoe is configured cofferectly same with the PPPOA option This will also add security the router will have port mappings you have to fill in to alllow the traffic from wan to you to come in. More secured if you don't have the ports forwarded ,or unpnp enbaled in the router in this mode it could slow you down alot.


If you want performance I say bridge drawback it may not auto reconnect unless you setup it up in the pppoe software.

If you want secuirty and automically logging on when dropped go with PPPOE

[YeOldeStonecat]

i want to know at least when to use a Bridge mode and when to use the PPPoE mode.
and why Bridged is a little bit faster than the PPPoE ?

You use the mode your ISP tells you to use....whichever product they provide.

If your ISP provides bridged DSL (most don't)..you setup your gear as bridged...which is basically just "Obtain Automatically" on your NIC of the PC, or the WAN port of your router..similar to how you'd set up for cable. No username, no password, no MAC, no host name, no authentication of any type. Just plug and go.

If your ISP provides PPPoE DSL, then you setup your system for PPPoE. It's an authentication protocol, you have a username and a password which you must enter. Similar to a "dial up connection".

With PPPoE...depending on your setup...you sort of have a choice as to where to have it done. In the earliest days...you always installed the software on your PC. DSL modems were just plain modems back then...or bridges. A bridge combines interfaces....in this case...the DSL interface, with an ethernet interface. They were not configurable. If you need to install PPPoE software on your PC (if you run Win2K or earlier you will)..it's similar to a dial up connection. WinXP supports it natively.

Shortly after...broadband routers arrived on the market. They would sit in between your PCs, and the DSL modem. They supported the PPPoE...so you didn't install the software on your PC anymore, you configured the router with your username and password, it would obtain the connection for you, and maintain it. And also provide you with a basic hardware firewall via their NAT.

More recently..ISPs began shipping modems which were actually combination modem/router. They will do the PPPoE for you, and provide NAT. This causes a problem if you have your own router you wish to use instead...because you end up with a double NAT'd network..where it will work..but not optimally. Or worse..duplicate IP ranges in between your router and modem..in which case, it won't work. This is the situation where more frequently you'll see advice on forums to "put your modem in bridged mode". You can log into the modems...turn off the PPPoE support, and turn off the NAT/routing...so that now it's just a basic DSL modem like the ones popular years ago..so you can use your own router...and have the router do the PPPoE and NAT.