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Cisco 3750g ps-e

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    Cisco 3750g ps-e

    Whilst on contract my manager has allowed me to play & learn with a CISCO switch.

    Where do I start ? I've never done anything with a cisco switch.

    I have it hooked up to a laptop and connected to a terminal session, but thats as far as I have gone with it.

    There is no GUI it's all command line stuff

    any ideas where I can start and learn with this.

    It's not needed at work it's purely for my own development.

    what is it you are trying to learn?
    The proud owner of 125 Xeno Geek Points


      To start with the basics of configuring a switch,

      then hopefully if I can learn that, start using it and get it up and running, just for experience


        Originally posted by DaveP View Post
        To start with the basics of configuring a switch,
        Type in some of the following commands to get a basic config on the switch:

        Switch Config

        conf t
        [Configure Virtual Interface]
        int vlan 1
        ip address
        no shut
        [Configure Default Gateway]
        ip default-gateway
        sh int vlan 1
        sh run

        [protect privilege mode]
        conf t
        enable secret XXXXXXX
        no enable password
        service password-encryption

        [Protect Console Port Access]
        line con 0
        password XXXXXXX

        [Protect Line VTY Access]
        line vty 0 4
        password XXXXXXX

        [Login Banners]
        conf t
        banner motd @
        Unauthorized Access is Prohibited


        [Enable SSH]
        conf t
        username YYYYYY password XXXXXX
        ip domain-name xyz.co.uk
        crypto key generate rsa
        ip ssh version 2
        line vty 0 4
        tranport input ssh

        [General Commands]
        [sh ip int brief]
        terminal monitor (shows all messages to VTY screen)
        sh mac address-table
        do ? (i.e. do sh run). runs the command from global conf mode

        [Switch Optimization]
        conf t
        line con 0
        logging synchronous
        exec-timeout 30 0
        no ip-domain lookup
        line vty 0 4
        logging synchronous (Retypes line automatically when messages are logged to monitor)
        exec-timeout 30 0 (Idle timeout)
        no ip-domain lookup

        [Setting up aliases]
        conf t
        alias exec s show ip int brief (where: exec=mode, s=alias command for "show ip int brief")

        [Port Security]
        conf t
        int fastethernet 0/5
        switchport mode access (hardcoded as access port - connected to end device. Alternative is trunk!)
        switchport port-security
        switchport port-security max 1 (max 1 mac address)
        switchport port-security violation ?
        protect (allows max mac & blocks the rest)
        restict (allows max mac, blocks the rest & logs violation in Security Violation Count (see sho port security int fa 0/5)
        shutdown (shuts down port)
        switchport port-security mac-address ? (hardcoded mac or sticky)
        sh port security int fa 0/5

        [To configure a range]
        int range fastethernet 0/2 - 24
        switchport port-security

        [Configure Speed & Duplex on Ports]
        conf t
        int fa 0/2
        duplex half | full
        speed 10 | 100

        - Check settings using: show interface fa 0/2, etc
        Last edited by Spoiler; 25 September 2012, 13:20.


          Have you tried: Shall we play a game?
          Will work inside IR35. Or for food.