VLan on Tomato

Discussion in 'Tomato Firmware' started by w11x22, Nov 22, 2012.

  1. w11x22

    w11x22 Networkin' Nut Member

    Hi all
    I am planing to buy a Gigabit Router as I have 2 computers wired connected with gigabit port and 2 with 100 but my current Router supports only 10/100 right now. I have little knowledge of Netwrking and my friend told me that if I go for a gigabit and connect mixed computers (ie 100 + Gigabit) then the computers with gigabit will run on 100 as well.
    Question #1 Is this correct?
    He told me that I would have to create VLan on the router to get the full potential of gigabit in a mix envoirmment....
    Question # 2 So can I do this vlan thing on RT16, 66 or E4200 or not?
    Thanks all in advance...
  2. bmupton

    bmupton Networkin' Nut Member

    On my Linksys E3000 I have a couple 100 mbps clients and a couple 1gbps clients, and I do not need a VLAN. The switch knows what each client is connecting at and adjusts automatically.

    The 1gbps clients can talk at the full speed, and if they talk to the 100mbps clients it slows to that speed.

    Your friend is mistaking a switch for a hub I think.
  3. koitsu

    koitsu Network Guru Member

    Your friend is incorrect, is misunderstanding what the purpose of VLANs is, or is assuming that routers use hubs and not switches (they use switches). I'd rather not get into explaining VLANs since it doesn't apply to your situation anyway.

    Please read what I've written very very slowly. Do not skim it. Take your time.

    Example scenario: you purchase a router that has 4 gigabit Ethernet ports on it. On your LAN, you have 2 computers that have 100mbit NICs, and 2 which have gigabit NICs. You wire 4 computers to the gigabit ports on the router.

    Result: the 2 computers that have 100mbit NICs will get up to 100mbit speed when talking to any other machine (including the router itself), and the 2 computers that have gigabit NICs will get up to gigabit speed when talking to either the router or the other gigabit computer -- but will only get 100mbit speed when talking to either of the 2 computers that have 100mbit NICs.

    The example I've described above is a 100% normal network environment, with nothing special and no crazy configuration needed (especially VLANs). It "just works".
    w11x22 likes this.
  4. w11x22

    w11x22 Networkin' Nut Member

    Hey Koitsu
    As always you came and helped/suggested and I thank you a million for this......I have read what you had written and I did not skim o:)
    Thanks again......
  5. PBandJ

    PBandJ Addicted to LI Member

    I remember reading this article on the matter a while back: http://www.smallnetbuilder.com/lanwan/lanwan-features/30212-when-flow-control-is-not-a-good-thing. The culprit is 802.3x flow control.
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