I sure hope some gifted young bean manages to get DD-WRT on this

In reply to a post by eckiedoo:

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

I have the same Bright Box router and firmware version and the MTU can be set to 1500

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

I have the Bright Box router configured in advanced set-up, broadband settings, with...

This page provides advanced settings to connect to your Orange Broadband service.

Broadband Type �� ADSL

Broadband Username �� x
Broadband Password �� x

Protocol �� PPPoA

VPI/VCI �� 0/38

Encapsulation �� VC MUX

Internet IP Address �� Dynamic

IP Address �� 0.0.0.0

Subnet Mask �� 0.0.0.0

DNS IP Address �� Manual

Primary DNS �� 193.36.79.101

Secondary DNS �� 193.36.79.100

Connection Type �� Always Connected

Idle Time �� 0 (minutes)

Authentication Protocol �� CHAP

MTU (576~1492) �� 1500

Evening E7r

Been away on busines.

I have just tried setting the MTU progressively from 1490 to 1505, leaving everything else "as-is".

1490, 1491 & 1492 were fine on "Save".

Everything higher failed.


I used 8.8.8.8 and 8.8.4.4 for the two DNS entries, so changed them temporarily.

Still would not save MTU above 1492.


Could the Exchange equipment have any effect, as otherwise I have not detected any differences in the H/W and S/W data.

In reply to a post by eckiedoo:

Could the Exchange equipment have any effect

No, not a chance! If you feel otherwise, just discon it from socket.

Can only be old runtime firmware with new boot firmware. We've already seen that their version control is non-existent

Morninng Xrayspex

"Tae mak siccar", I have just tried it disconnected, it made no difference with the over-1492 values - Not Saved; and I also tried 575 - Not Saved; and 576 - Saved.

So if Orange is relying on version information to track faults, etc, it is not going to be particularly helpful; and may cause confusion.

Guys, you can change the MTU but there is no point setting it to 1500, thats for cable services. The industry standard for an ADSL router is 1492, but this does not mean its standard for every ISP. Orange in point of fact uses a packet size of 1430 (data and header included) by using anything higher you are basically fragmenting the packets.

At least it was this size the last I checked, there are tutorials out there on the net to find this value out for yourself.

In reply to a post by Kaytfoh:

by using anything higher you are basically fragmenting the packets.

Then explain why I can use a Netgear with MTU = 1500 on Orange and this test Working out your maximum MTU reports no fragmentation of packets?

Screenshot of the command window with these results please...

Can't be arsed to swap routers just to satisfy you, in view of your rudeness elsewhere.

Then I can't be bothered to accept it, despite the fact that the socket in the other thread shouldn't have been opened to that degree as there is nothing in there apart from muck to examine that is the customers or your responsibility to repair.