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I am a Cisco novice, now that we have got that out of the way I need your help.

I need to assign a VLAN to a port on my layer 2 switch.

I have a port that has the configuration that I need but I need to copy that to 2 other ports.

I can log into my switch but from there I am lost, I would appreciate your help I am sure for someone who knows this is a doddle.

So far I have learned I could use two commands - ‘show VLAN’ which will list all of my VLANs and which interfaces are assigned them.

And I read on a website interface switchport access vlan #

I have never used CLI before so please talk to me as such.

7 Spice ups
2

config t

interface fast 0/10 (where 0/10 is the fast etherenet port you want to configure)

switchport mode access

switchport access vlan 10 (where 10 is the vlan you want to assign

duplex auto

speed auto

end

repeat for other ports. there is a lot more to it than that but that should get you started assuming your vlans were built properly.

4 Spice ups
3

How do I write this config to memory and do I need to go to elevated mode?

This is great btw.

4

yes… you need to be in enable mode the prompt will look like this

switch#

not this

switch>

then when you are done you just do a “write mem” or “copy run start”. then you should occasionally copy the configs to a tftp server so if the switch catches fire you can just drop your existing config on a new switch and be rolling as fast as possible. it can be done with spiceworks though i have not done that quite yet.

2 Spice ups
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This is exactly what I need, thank-you very much, Im running out the door to go see Gravity but I will try this on Monday.

6

i found this. did not read it but maybe it is accurate :slight_smile:

http://community.spiceworks.com/how_to/show/1709-set-up-spiceworks-configuration-backup-with-cisco-ios-via-ssh

1 Spice up
7

gain access to the switch

enter enable mode

command “enable”

provide password if required

enter configuration terminal

SW1#conf t

Enter the interface that needs the vlan assigned

SW1(config)#interface fastethernet 0/0 (for example)

Now you are in line config mode enter the switchport access vlan (vlan number)

SW(config-if)switchport access vlan (vlan number)

1 Spice up
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Something that may make your life much easier is ciscos network assistant its a gui style interface for switches… makes life a little easier for novices

1 Spice up
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The CNA and CCP are both decent enough, but the Command Line is sooo much easier and faster.

I agree with TCOB but I would add a couple of things. In an office network where hosts are less likely to change, I would configure speed and duplex settings manually. In an environment where the host devices frequently change then speed and duplex on auto are fine.

I would also add spanning-tree portfast. So the complete config for adding an interface to a VLAN looks like this, assuming we are starting from user mode:

========================================================================

switch>enable

switch#conf t

switch(config)#int fa o/x (or int gig0/x for a Gigabit switch) where x is the port number.

switch(config-if)#switchport mode access

switch(config-if)#switchport access vlan x (where x is the number of the VLAN)

switch(config-if)#spanning-tree portfast (you will get a 2 paragraph, 5 line warning about portfast at this point. Don’t worry about it)

switch(config-if)#speed 100 (for a 10/100 switch. speed 1000 for a gigabit switch)

switch(config-if)#duplex full

switch(config-if)#end

switch#copy run start (or wr if you like)

=========================================================================

If you make a mistake and want to set the interface back to it’s default settings and try again, you can do this:

switch(config)#default int fa 0/x (or int gig 0/x for a Gigabit switch)

Or you can simply overwrite the commands by going back in to the interface and re-doing the command line that is wrong. You do NOT have to redo all the commands, just the one that’s wrong. And let me tell you, typo’s will drive you mad so be careful and make sure you verify your commands every so often

1 Spice up
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I can’t add much to the good advice above, but I would re-emphasize mark9586’s to watch for typo’s. They were my biggest source of pain while studying for the CCNA.

1 Spice up
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Thanks everyone this was ideal, got in there and got it nailed within an hour. I feel like I learned allot and enjoyed the experience.