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anyone know anything about multilinking?

Discussion in 'Networking Issues' started by t4thfavor, Mar 10, 2005.

  1. t4thfavor

    t4thfavor Network Guru Member

    ok, I and another poster on this forum have a problem
    we have access to 2 broadband acconts from one computer (or many).

    we would like to know if there is any way to "link them together" to double throughput, as in a multilink dial up.

    i was thinking that a microsoft advanced server or fill in the blank linux server would be needed to accomplish this.

    i know winxp pro has support for dual dialup lines and it works seemlessly
    so my questions are.

    1. does anyone know how to do it.
    2. could a computer be set up to have 2 default gateways(yes), would it use both in a scenario where one of them was being fully consumed?

    this is prolly a really hard question to use

    my setup is a 2 WRT54G on 2 seperate cable lines. wrt#1 internal ip wrt#2 internal ip
    i have ethernet connection to both as well as the capability to have wireless connection to both (same time)

    its not like I need 6/3 Mbps rates but it would be fun to toy with.
    any suggestions?
  2. Jogobo

    Jogobo Network Guru Member

    Just a short answer to a complex subject: what you are dreaming of will not work the way you expect it to.

    You will never have a download speed of 6Mbit as you will have to different IPs on your cable modems. The internet would have to know that both IPs belong together and split files to send the blocks half to the first modem and the other half to the second modem.

    Load balancing, as the term implies, works as follows on your side:
    - the IP address of your load balancing machine is the default gateway for you network
    - load balancing decides whether to send a request to the internet through the first or second connection (depending on load)
    - the internet sends the answer exclusively to the connection the request was sent out as it does not know about the second connection
    So you will have 6MBit of bandwidth but a max. of 3MBit for a single request. For further information search the internet.

    Just my 2 €-cents.
  3. t4thfavor

    t4thfavor Network Guru Member

    ahh but thats where your wrong

    a certain cisco router has the ability to do just that. it will have 2 external ip's at the cable modems. and then it is smart enough to combine all traffic into a single internal ip which becomes the default gateway for your network

    no you are right i would never need 6Mbps speed but sharing with 5 or so computers it would help conciderably.
    which is why i have expressed the concern.

    thanks for the reply
  4. Jogobo

    Jogobo Network Guru Member

    I don't see where I was wrong.

    This certain cisco router does exactly what I described under "Load balancing".

    Just my 2 €-cents.
  5. Martijno2000

    Martijno2000 Network Guru Member

    Not much progress here...somebody must know some kind of method of getting 2 connections acting as 1 connection.
    Maybe you can try Vicomsoft's Intergate? Or nicexpress if you can find it...Both have options of connection teaming as I mentioned in the other thread but I can't get them to work. With Intergate you've got to use 3 nics, 2 nics for teaming (ADSL/DSL + Wireless) and 1 nic for connection to other pc's. Intergate is like a server program.

    Somebody help us out...
    Let me know if you need anything

    I'm going to bed..."looking at the time difference of this forum"...here it's like 23.20 now..
  6. theperfectk

    theperfectk Guest

    Does anyone work with MS ISA and/or Proxy server? That may be able to take advantage of your dual link setup. It may be able to 'round robin' requests, so to speak, out of your various internet connections, and then serve up requests internally at a much faster rate. That is a very boiled down version of how larger enterprises handle internet usage. I myself haven't messed with it in awhile, but you may look for some forums about proxy servers to find more of what you're after. There are obviously some very powerful linux solutions as well, but I am not very familiar with them. dansguardian, maybe... someone out there is surely more knowledgeable than I in that regard...

    But again, that is only really a benefit if you have more than 3 or 4 PC's on your LAN. For any 1 single PC, the whole setup is only good for fault tolerance, that's all.

    Just a thought...
  7. t4thfavor

    t4thfavor Network Guru Member

    this "" cisco routr uses mlPPP to bond together multiple physical links into a single data link. this is used to bond say 45 T1's to create a T3
    so i dont see anything about loadbalancing in there.

    though your solution (load balancing) would work we dont want to have to load up the server box. i personally want a solution that ideally only uses a small dedicated router box such as a cisco router

    the source i spoke to in person said that such box coulld be had for around 600-800 bucks (which i dont have)

    im wondering if tweaking of the WRT54G(2) could allow me to make one of the ethernet ports a dhcp client instead of serving requests it could recieve a second ip
    maybe i could set half the boxes on my net to that gateway and the other half to the other gateway
    again this is pure theory and i was just wondering.

    but just for giggles i will make a box with load balancing and see if it can do my required feat.

    anyone know of a good distro to tackle this or do i have to find my Win2K cd?

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