Catalyst 2950 series

Posted on 2007-07-31
Last Modified: 2010-04-12
I have a catalyst 2950 series switch, currenlty up and running fine for years (configured by a previous employee)  I want to get into this switch to see the configuration and save it.  However, there no static IP address for the switch ( or can't find it at all).  I tried to get into the switch using console.  However, It asked for "Enter IP address"  Does anybody know why?  If I assign IP for this switch (in the same subnet for the network that switch belongs to), will it cause any issue?  because the switch is currently functioning.
Question by:kle49ers
    LVL 16

    Accepted Solution

    Hi kle49ers!

    Actually the switch does not need an IP address. You only need it to manage the switch remotely. If you are connected by console you won't need an IP address.

    To me it seems that you are starting the inital configuration process. That would mean that the switch was just bought and installed without any additional configuration. If you want to see the current config you can skip the initial configuration of the switch.

    You won't have any issues if you assign an IP address to the switch as long its not an IP address that is already assigned to another device. If you want to connect to the switch remotely, e. g. via telnet you should of course use an IP address of your subnet.

    Hope this helps!
    LVL 50

    Assisted Solution

    by:Don Johnston
    You may be seeing the result of the "initial configuration dialog" that got started but never finished.

    Just hit Ctl-C to exit. Then you can configure it manually.

    Author Comment

    hi Kirschi!
    Thanks for your response.
    The switch is configured a long time ago, currently it is up and running in production environment.  I cannot Telnet since it doesn't have an IP.  When I tried to console in via Hyperterminal, COM4, 9600, data bit 8, parity: none, stop bit 1, flow control: none, as soon as the status on the bottom says connected, I hit Enter key and it asked for Enter IP address:, which confused me.  Any idea?
    LVL 50

    Expert Comment

    by:Don Johnston
    You are most likely in the configuration dialog. Press Ctl+C to exit.
    LVL 16

    Expert Comment

    donjohnston is exactly what I wanted to say in my posting. It seems that someone had started the initial configuration dialog but didn't finish it. So Ctrl+C should get you out of the configuration dialog.

    You can find more detailed information about the initial configuration dialog on pages 12 ff. in this document:

    For more in-depth information to configure the switch see the configuration guide:

    I think its best to have a look at the "Administering the switch" section at first.

    Hope this helps

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