VLAN Switch

Using Tardis' VLAN switch

We have a very nice 24 port Cisco Catalyst 2900 XL switch donated by User:sjh. It runs Cisco IOS Version 12.0(5.1)XP [c2900XL-h2s-mz-120.5.1-XP.bin]. Cisco have a configuration guide and command reference online.

It runs a telnet server on the admin VLAN at 192.168.1.4 and is connected to Racnoss. Here's a dump of the switchport config:

interface FastEthernet0/1
 description davison router
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1-6,1002-1005
 switchport mode trunk
!
interface FastEthernet0/2
 description piper
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/3
 description spiderport
 spanning-tree portfast
!
interface FastEthernet0/4
!
interface FastEthernet0/5
 description tennant
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/6
 description mccoy
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/7
!
interface FastEthernet0/8
 description colin
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/9
 description ace (router in the making)
 switchport access vlan 3
!
interface FastEthernet0/10
 description peri
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/11
 description davros
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/12
!
interface FastEthernet0/13
 description gallifrey
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/14
 description leela
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 3
 switchport trunk allowed vlan 1,3,1002-1005
 switchport mode trunk
!
interface FastEthernet0/15
 description mara
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/16
!
interface FastEthernet0/17
 description vislor
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/18
 description adric
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/19
 description obelisk (gliding - see martin)
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/20
 description Pert's dell TEMP
 switchport access vlan 3
 spanning-tree portfast
!
interface FastEthernet0/21
 description Cisco serial console box
 spanning-tree portfast
!
interface FastEthernet0/22
 description trogdor - VLAN 5 (gamesoc)
 switchport access vlan 5
 spanning-tree portfast
!
interface FastEthernet0/23
 description reaper - sandboxes VLAN
 switchport access vlan 4
 spanning-tree portfast
!
interface FastEthernet0/24
 description cross-over link to 3com switch
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface FastEthernet1/1
!
interface FastEthernet1/2
!
interface VLAN1
 ip address 192.168.1.4 255.255.255.0
 no ip directed-broadcast
 no ip route-cache

To configure another port connect to the switch via telnet or via Racnoss and do something like:

 Switch>en
 Password:
 Switch#conf t
 Enter configuration commands, one per line.  End with CNTL/Z.
 Switch(config)#int fa0/16
 Switch(config-if)#description HOSTNAME
 Switch(config-if)#switchport access vlan 3
 Switch(config-if)#spanning-tree portfast
 Switch(config-if)#exit
 Switch(config)#exit
 Switch#

Use write memory to save your changes to the flash memory once you are happy with the new configuration.

The old HP switch is also kicking around.