PPPoE MTU in Windows XP

[Bob Carrick]

From an e-mail the head PPPoE developer at MS sent me "Unfortunately we don't have a regkey to change the MTU value for PPPoE. What should happen is that the ISP should negotiate the correct MRU in PPP for their network. We will support that and set the MTU accordingly."

So I guess we can stop trying.

[Lobo]

In lay terms Bob, what is the best course of action :) :)

[Bob Carrick]

Well, we have to prove there is a need to be able to adjust the MTU from 1480 to another value and then I can submit that proof to MS so it can't be added in the next version of their PPPoE software.
This was the other part of their e-mail to me "I have seen other implementations that expose this setting (RASPPPoE comes to mind), but how often is it required by the ISP?"

[Lobo]

Bob I put your site on help thread, is that OK:) :)

[Bob Carrick]

Anywhere you put it is fine with me. Where did you put it, so I can take a look? (IE: Post link please).

[Lobo]

Below in my signature, help thread:)

[Bob Carrick]

Ahh thanks, very kind.

[Lobo]

Well it looks like a neat place for people to get help so thank you:)

[Bob Carrick]

I try.

[Lobo]

The bottom line Bob, do we use MTU of 1480 in XP:)

[Bob Carrick]

We have to. That is what it seems to be set to, and there is no way to edit it. Or so says MS.

[Lobo]

OK, kind of funny for OS to set MTU but will do:)

[Bob Carrick]

Yes it is odd. but in the original message, they mentioned that... "ISP should negotiate the correct MRU in
PPP for their network. We will support that and set the MTU
accordingly"
So hopefully there will be no need for us to edit it, but if there is I can present it to MS.

[Lobo]

^