What MTU between two routers?


  1. brex
    Posts : 21
    64bit Windows 7 Home Premium
       New #1

    What MTU between two routers?


    I have a peculiar network setup that causes me to require two routers.
    My laptop connects to router B, which then connects to router/adsl-modem A.

    {Internet} ===MTU:1460===> [A] ---MTU:????---> [B] ===> Laptop


    I have set up router A with all the correct settings provided by my ISP, one specifically being the MTU of 1460.

    I now need to know what I should set router B's MTU at. Should it be the same at 1460, or the full network speed of 1500.

    Please help if you know the answer. Thanks!
      My Computer
    Quote Quote

  3. Glhs958
    Posts : 33
    Windows 7 Ultimate 64bit
       New #2

    I am going out on a limb here but I would think you would have to set it either auto so it would detect the of router a's mtu or set it manually at 1460. if you had it at 1500 then you packets would get fragmented.
      My Computer
    Quote Quote

  4. brex
    Posts : 21
    64bit Windows 7 Home Premium
    Thread Starter
       New #3

    Thanks for your response Glhs!
    Unfortunately my old router doesn't have an AUTO setting.
    I shall try it on 1460, but would appreciate if anyone could confirm this is correct.
      My Computer
    Quote Quote

  6. Glhs958
    Posts : 33
    Windows 7 Ultimate 64bit
       New #4

    Your welcome brex, I believe this would keep you from fragmenting the ip packet. As I seen it if you send a packet the size 1500 through one node to a node that only supports 1460 would cause every packet to fragment. So going with both at 1460 would keep each node working in harmony.
      My Computer
    Quote Quote

  7. brex
    Posts : 21
    64bit Windows 7 Home Premium
    Thread Starter
       New #5

    Okay thanks. I'll keep it set to 1460.
    Appreciate your help.
      My Computer
    Quote Quote

  8. brex
    Posts : 21
    64bit Windows 7 Home Premium
    Thread Starter
       New #6

    Excellent. I shall use 1460 from now on.
    Thank you.
      My Computer
    Quote Quote

 

  Related Discussions
Routers for Low SNR
in Network & Sharing

I’ve been experiencing a number of problems with my internet connection and have had a number of things done to resolve the situation including a new router from my service provider. They have told me that it is a basic router. The problem I’m having is that the SNR keeps dropping. Having done...
Routers... Need help
in Chillout Room

Ok guys, So a few days ago, my router bricked itself. I don't know how, but I'll explain the problem. The WiFi Broadcasts a 169 Address, and kicks off EVERY wireless device. Trying to reconnect fails, it also rejects the pass key. The hardwired connections are fine, but it's only a matter...
Using 2 routers ?
in Network & Sharing

I have a wireless router but have the wireless turned off because I use Ethernet wired to other devices. What I would like to do is be able to turn the wireless function on & off with the flip of a switch instead of accessing the router’s setup page. I know you can use 2 routers with the...
2 routers
in Network & Sharing

So I have 2 routers. Thomson TG784 and Thomson ST780. Internet comes trough DSL cable into TG784. Is it possible to use ST780 as wifi receiver and connect it trough wifi with TG784. (fried my own wifi receiver and no money atm to buy a new one)
Routers
in Network & Sharing

For a few years, my Netgear router DG834G ran trouble free 24/7. Unfortunately it died and was replaced a few months ago with another Netgear router DGN2000. Occassionally over the past week or so, it drops connection, resulting in the need for me to switch it off, wait 1 minute, switch it on and...
Our Sites
Site Links
About Us
Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

 © Designer Media Ltd
All times are GMT -5. The time now is 15:05.
Find Us