Meaning of 'Bridge PPPoE Frames Between WAN and Local Ports'

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Pada

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What does the 'Bridge PPPoE Frames Between WAN and Local Ports' option imply? It's given when you configure the PPPoE connection in the D-Link 'Web-based Configuration Utility'.

Does this by any chance have something to do with NAT loopback?

Furthermore, how do you check if the router supports NAT loopback?
The reason I'm asking: if you want to host an online game, and have your LAN buddies join your game, you need a router capable of NAT loopback - unless you put your PC in DMZ which is besides the point :)
 
I would say this means that you would be able to dial PPPoE session from behind the router. As the router is now forwarding PPPoE frames from the WAN to the LAN.
 
The Guy:
You're correct. I've learned quite a great deal about ADSL since 2009 :)

That option enabled what is called PPPoE Passthrough, or otherwise known as PPPoE Relaying or even Half-Bridge mode. That means that you can dial additional PPPoE connections from PC's behind the modem, while the modem is also able to dial a primary/default PPPoE connection too.

So for instance you can dial your fast/capped account on the router, and when you want to download tonnes of stuff, you can dial your slow uncapped account from your PC, while the other people (also behind the modem) still use the fast/capped account.
Of course there are many other kind of scenarios where it is useful to let the modem dial the PPPoE account and allowing nodes behind it to also dial additional PPPoE accounts...

As for the NAT loopback thing - I'm not sure if it does support it - but I would guess that it may.
 
Pro-tip: Reboot your ADSL router after adjusting this setting... It only appears to take effect after that! (Thanks Eskom for pointing that out to me!)

Pada said:
The Guy:
You're correct. I've learned quite a great deal about ADSL since 2009 :)

That option enabled what is called PPPoE Passthrough, or otherwise known as PPPoE Relaying or even Half-Bridge mode. That means that you can dial additional PPPoE connections from PC's behind the modem, while the modem is also able to dial a primary/default PPPoE connection too.

So for instance you can dial your fast/capped account on the router, and when you want to download tonnes of stuff, you can dial your slow uncapped account from your PC, while the other people (also behind the modem) still use the fast/capped account.
Of course there are many other kind of scenarios where it is useful to let the modem dial the PPPoE account and allowing nodes behind it to also dial additional PPPoE accounts...

As for the NAT loopback thing - I'm not sure if it does support it - but I would guess that it may.
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