In reply to a post by glossywhite:

Default TCP Receive Window (RWIN) = 14720

BTW: You RWIN is extremely low! As that report says it limits you to very low effective speeds.

This hack was fallacious and was withdrawn by OP.

However, we recently discovered that later Brightboxes issued allowed MTUs up to 1500.

The Brightbox without the MTU <= 1492 restriction has these versions:

SYSTEM
Runtime Code Version: v0.09.82.0001-OT (Mon Nov 28 17:30:50 2011)
Boot Code Version: v1.00.10.0001-OT (Wed Dec 14 09:30:42 2011)
ADSL Modem Code Version: A2pD035b.d23i
Hardware Version: 01

The one that has the restriction is almost the same except for:

Boot Code Version: v1.00.09.0002-OT (Wed Nov 9 10:21:21 2011)

It looks like 1 month after releasing it, Orange realised that MTU = 1492 was not sufficient for WBC where MTU = 1500 and so started to push out ones with updated firmware. Tho' their version control looks wanting as the relevant code restricting MTU is in the Runtime.

Orange have not yet issued a firmware update for the older Brightboxes, but they tell me that they may issue an update in the future and I should await an email annoucing it. Oh, the joys of being an early adopter !

In reply to a post by XRaySpeX:

This hack was fallacious and was withdrawn by OP.

However, we recently discovered that later Brightboxes issued allowed MTUs up to 1500.

The Brightbox without the MTU <= 1492 restriction has these versions:

SYSTEM
Runtime Code Version: v0.09.82.0001-OT (Mon Nov 28 17:30:50 2011)
Boot Code Version: v1.00.10.0001-OT (Wed Dec 14 09:30:42 2011)
ADSL Modem Code Version: A2pD035b.d23i
Hardware Version: 01

The one that has the restriction is almost the same except for:

Boot Code Version: v1.00.09.0002-OT (Wed Nov 9 10:21:21 2011)

It looks like 1 month after releasing it, Orange realised that MTU = 1492 was not sufficient for WBC where MTU = 1500 and so started to push out ones with updated firmware. Tho' their version control looks wanting as the relevant code restricting MTU is in the Runtime.

Orange have not yet issued a firmware update for the older Brightboxes, but they tell me that they may issue an update in the future and I should await an email annoucing it. Oh, the joys of being an early adopter !

I find update instructions for the new Orange Bright Box wireless router interesting; under Update Software page it gives the option to Update Bootloader. I think my router has the latest bootloader version: v1.00.10.0001-OT (Wed Dec 14 09:30:42 2011) will your router update to this version?

http://help.orange.co.uk/orangeuk/support/personal/6...

Sorry, I don't understand you. What Update Software page? I only have Tools -> Firmware Upgrade, which wants a local file and simply looks like this:

Firmware Upgrade
Browse to the location of the upgrade file. Then press the begin upgrade button.

File ___________________________ Browse

In reply to a post by E7er:

will your router update to this version?
http://help.orange.co.uk/orangeuk/support/personal/6...

What version? Where do I find it? There is no download any firmware on that Orange page.

Edited by XRaySpeX (Wed 27-Jun-12 13:16:22)

In reply to a post by XRaySpeX:

Sorry, I don't understand you. What Update Software page? I only have Tools -> Firmware Upgrade, which wants a local file and simply looks like this:

Firmware Upgrade
Browse to the location of the upgrade file. Then press the begin upgrade button.

File ___________________________ Browse

In reply to a post by E7er:

will your router update to this version?
http://help.orange.co.uk/orangeuk/support/personal/6...

What version? Where do I find it? There is no download any firmware on that Orange page.

Yes, I found the same no firmware! But you can see from that page there is a facility to update the bootloader firmware. You will just have to wait for Orange to provide it.

In reply to a post by E7er:

you can see from that page there is a facility to update the bootloader firmware. You will just have to wait for Orange to provide it.

Yes, but obviously, I don't have that page, which must be in your firmware but not mine; just that simple page I sketched out.

So I'm going to have to wait for an update to the whole firmware which will contain the Bootloader firmware that you have + an amended Runtime firmware with the naughty unchanged version control. Then I should be able to see that Update Software page that you can see, but I shouldn't need to call upon it as the complete updated firmware will have already contained it

What happens if you try set MTU to 1501?

Do you get same unsupported msg as me but with 1492 replaced by 1500?

In reply to a post by XRaySpeX:

Yes, but obviously, I don't have that page, which must be in your firmware but not mine; just that simple page I sketched out.

He doesn't have "that page" in his firmware either... Just the same "simple page (you) sketched out" - I have the same newer firmware in my Brightbox - which allows me to set MTU=1500.

What 47ER is referring to is the Software Update "page" that is referenced in the link he posted... Which, to my understanding of it, is a page that is "most commonly seen after trying to return the router to factory settings using the reset button"

Just my 2p - trying to clarify!

Cheers, Moz.

In reply to a post by XRaySpeX:

What happens if you try set MTU to 1501?

Do you get same unsupported msg as me but with 1492 replaced by 1500?

Nope, it accepts 1501... Also 1521.. Didn't try any other settings, and didn't do any testing of actuals either!

Edited by deleted (Sun 01-Jul-12 01:53:40)

1) OIC, I thought E7er was simply using that Orange help page as an illustration on what he can see on his BrightBox.

I shan't bother trying to get to it as a) I don't want to lose my own settings and anyway b) I don't have the necessary files to feed it and that help page doesn't offer them.

2) Thanks, that's interesting! Looks like they have completely removed all restrictions on MTU in later routers. In which case you won't have the bracketed limits on Set-Up page for MTU:

MTU (576~1492) ____