vlan2 in my device list?

Discussion in 'Tomato Firmware' started by g725s, Oct 18, 2011.

  1. g725s

    g725s Networkin' Nut Member

    I have two vlan2's in my device list. I would like to know exactly what they are. Any ideas on finding out what they are. Or for that matter finding out exactly what all my devices are that are listed. There is one of the vlan2's that seems to go off and on at will.
  2. Dr Strangelove

    Dr Strangelove LI Guru Member

    If one was to telnet into the router with the root user and password and then type ifconfig at the command prompt, this will give a good breakdown of the physical and virtual interfaces.
    This notes MAC addresses which are an easy way to track down devices and interface addresses.
    There are other commands for a more detailed look at IP addressing and arp caches and etc..
    Using the tomato firmware menu and looking at the advanced ->routing option, may also give some insight.
    It's a starting point anyway until more detailed information arrives.
  3. g725s

    g725s Networkin' Nut Member

    Sorry but don't have that much experience. I have to do things like this with a lot of help. I'm able to do somewhat complicated setups with guides and such, I setup VPN with a guide.

    But what do you mean by telnet into the router? I have run ipconfig a few times for info from the command prompt within windows. But that is about it really.
  4. Dr Strangelove

    Dr Strangelove LI Guru Member


    Does the following routing table on your Tomato firmware enabled router give you any hints?
    The Interface column indicates which interface is being used.
    The IP address assigned to the interface should give some clues to the nature of it's use. i.e WAN, LAN or Tunnel.
    BR0/LAN is commonly the collection of switched Ethernet ports used for the LAN on your router.
    WAN is the Ethernet interface from your Internet connection.

    A VLAN is a collection of physical or virtual ports grouped together to form one IP network/sub-network.


    ipconfig on a windows PC gives you similar information to what ifconfig does on a Linux based router.

    Note the command is ifconfig. note the F in the command
  5. g725s

    g725s Networkin' Nut Member

    Missed that "f" the first time around. Thought it was "p". I've only run the ipconfig before. I'm using Windows.

    I thought that vlan2 might be someone in my network that should not be.
  6. Toastman

    Toastman Super Moderator Staff Member Member

    Remember, in the TOOLS menu in most variants of Tomato you have a box to enter commands. Except for some interactive commands, most things work there, including ifconfig.
  7. g725s

    g725s Networkin' Nut Member

    Yes, I tried the command line ifconfig there and it works. Now I just need to learn more about what all that actually means ;-) Thanks
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