MTU of a network

Last thread, i mentioned that one of my friend reduce the MTU size to enable MSN chatting when he is using IzzI to acces the internet. Below is what i get from Wikipedia about MTU:

In computer networking, Maximum Transmission Unit (MTU) refers to the largest packet (size in byte) that a communications protocol is able to pass onwards.

High MTU: Higher bandwith efficiency. However, for high MTU set for a slow interface, can block-up the interface and cause lagging on other packets.

Low MTU: Increase the number of data packet, which increase the routing decisions of a routers. Thus, slow up the communication.

I found that, if i can settle the problem by setting the PPPoE connection to static connection, then i should reduce the MTU. This will actually slow-up the whole network. I experiment his method by setting the MTU==576 at home, and online using a laptop and a desktop at the same time. I found that both of my PCs' connection are slow, and get disconnected quite often.

When i switch it back and using my own method (static PPPoE), the connection is faster and i'm able to play online game smoothly (althought there is a ~1 sec lag).

So to my point of view, to have the home network connect to the Izzi's terminal with a router. It is better to set the router to connect using static PPPoE and maintain the MTU==1400.

Connect router to IzzI wireless modem

My router model is D-link 624 (i know, its a bit out, is a discountinue product...)
This is how i succefully connect my router to IzziPro terminal.

1. I access my router UI through http://192.168.0.1/, and change the unit IP to 192.198.0.1.
2. I set my router to PPPoE access with the my izzi's username and password.
3. Set a static PPPoE IP range from 192.198.0.2 to 192.198.0.254.
4. Enable the DHCP of my router.

and, that's it. I'm able to connect a desktop, a laptop and a PDA to the router and online, and MSN chatting through izzi's network.

nice to share ^^

iZZi Wireless Broadband

Try out the IzziPro yesterday nite.
My area is Bandar Sri Damansara, and i stay at 5th floor.
The signal strength stay within 50-60% only.
The agent told me that their Kepong tower will going to operate by 15th Sept, which is today. He mentioned that the signal should be ok after 15th of Sept.

Even the signal strength is within 50-60%, the downloading speed is quite stable at 380++kbps. I surf the net whole nite from 8pm - 1am in the morning, the line din get disconnet. But, when i tried to play online game, there will be a 1-2 sec lack.

This is much more better than Maxis wireless broadband that i used before Izzi. Maixs wireless is not stable especially during 8-10pm, keep on disconnect. Check the network type, it shown HSPDA connection, but dun even can chat with my friend on MSN. :sad:

I'm quite satisfy with Izzi and plan to stay with this wireless broadband. However, i would like to know, how am i going to connect it to a router so that the network can share within several users at home?

I'm using a D-link router, i'm now able to surf the net, but cannot sign-in MSN. Anyone can help me on this??