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Reply to: Cisco 3750g ps-e
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Previously on "Cisco 3750g ps-e"
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Originally posted by DaveP View PostTo start with the basics of configuring a switch,
Switch Config
-------------
[Basic]
-------
enable
conf t
hostname
[Configure Virtual Interface]
int vlan 1
ip address 192.168.1.254 255.255.255.0
no shut
exit
[Configure Default Gateway]
ip default-gateway 192.168.1.1
end
sh int vlan 1
wr
sh run
[Security]
----------
[protect privilege mode]
conf t
enable secret XXXXXXX
no enable password
service password-encryption
[Protect Console Port Access]
line con 0
password XXXXXXX
login
[Protect Line VTY Access]
line vty 0 4
password XXXXXXX
login
[Login Banners]
conf t
banner motd @
**********************************
Unauthorized Access is Prohibited
**********************************
@
end
[Enable SSH]
conf t
username YYYYYY password XXXXXX
ip domain-name xyz.co.uk
crypto key generate rsa
<1024>
ip ssh version 2
line vty 0 4
tranport input ssh
end
[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
end
[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)
end
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
end
- Check settings using: show interface fa 0/2, etcLast edited by Spoiler; 25 September 2012, 13:20.
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-
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
Leave a comment:
-
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.Tags: None
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