interface question 3

[Eckey]

i am trying to set up some vlans, the company gave me a set of commands to put in to do so. the command they gave me interface FastEthernet1/0/1 but it is giving me the an error "Invalid input detected at `^` marker" so i'm assuming the numbers are wrong or something...how do i check for the proper FastEthernet numbers?

Anybody know?

Matt Eckey

P.S it's a cisco 2950 switch

 

[KiscoKid]

Hi Matt

I posted to your original question about this and some spurious error you were seeing.

You will get that message you outlined if you have entered a command not recognised or if you are entering a valid command but at the wrong level of device access.

It sounds like they have provided you with a script to configure fa1/0/1 but perhaps not including the couple of commands you need to be in the right mode to execute the script.

After you connect to the device, you may have to provide a user level password. I say may because a password may not be configured on the device. If you access the device and it instantly goes to a prompt like:

router>

then no password was configured.

This is user level access. If it doesn't and prompts for a password, enter your user level password and, if successful, it will go to the prompt above (of course the device may not have a name router and could be anything, e.g. if I call my router fred, the prompt would be fred>)

Once you've reached this level, you then need to enable full access to the device. You do this by entering the command 'enable' strangely enough. Again you may be asked to provide the enable (or enable secret) password. If you successfully negotiate this step, you will see the following prompt:

router#

From the hash prompt (as most people like to call it), you can now enter configuration mode by entering the command 'configure terminal'. This time you won't be asked a password and the prompt will change as follows:

router(config)#

Now you can enter interface configuration mode to configure fastethernet1/0/1. Do this by entering the command 'interface fa1/0/1'. The prompt should now change to:

router(config-if)#

You must be at this state before you can configure your fastethernet1/0/1 interface otherwise you'll likely get a lot of errors similar to the one you mentioned. Now you can paste in the script they ran. Keep an eye out for the error message you outlined in your post. If you see this, you can be assured that particular configuration wasn't applied to the interface.

Once you've completed configuration, you can check your work by entering 'CTRL-Z' and you'll you see the router# prompt.

Once you're here, type 'show running' to see the running (live) configuration. You should see the commands you entered (or not) under the fastethernet1/0/1 section.

I hope this helps. Let me know how you get on.

 

[njgpeck]

FastEthernet1/0/1 isnt't a valid interface. Most would be fa0/1 or fa1/1.

To see all avaiable interfaces type show int


If at first you don't succeed....then sky diving isn't for you.

 

[vipergg]

Just do a show ip int brief and it will tell you what the interface numbers are , on a 2950 I think they are just interface F0/1 thru 24 . So just do a conf t , then enter "interface f0/1" .

 

[wabob]

FastEthernet 1/0/1 sounds like a 3750 switch, not a 2950.