Florian: New page: following network is given Image:übungsbeispiel VLAN.JPG '''Exercise:''' * Connect with Switch 3 and get all MAC addresses, which knows this switch.
* Typing the '''switchpor...

2008-08-26T07:40:11Z

New page: following network is given Image:übungsbeispiel VLAN.JPG '''Exercise:''' * Connect with Switch 3 and get all MAC addresses, which knows this switch. * Typing the '''switchpor...

New page

following network is given

[[Image:übungsbeispiel VLAN.JPG]]

'''Exercise:'''

* Connect with Switch 3 and get all MAC addresses, which knows this switch. 
* Typing the '''switchport access vlan''' command in and take all PCs with even number into VLAN 2. 
* Check with '''ping''' whether only personal computers in the same VLAN can be reached. 
* Why is the diagnosticcommand traceroute in this network not very useful? 
* Why are all personal computers in VLAN 1 reach but none in VLAN 2? 
* Connect Switch3 and Switch4 so that Switch3 access to the VLAN 2 of Switch1. 
* What sense could be to set up VLANs? 
* What should happen, if you connect switch 1 and 2?. Why should it happen and how it is called?
 
 
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'''Solution:'''

'''Connect with Switch 3 and get all MAC addresses, which knows this switch.'''
 
Switch>'''show mac-address-table''' now you will see all MAC addresses
 
 
'''Typing the '''''switchport access vlan''''' command in and take all PCs with even number into VLAN 2.'''
 
'''Create a VLANS:'''
 
Switch<nowiki>#</nowiki>'''conf t''' to get into the global configurationmode
 
Switch(config)<nowiki>#</nowiki>'''vlan 2''' you will set up VLAN 2
 
Switch(config-vlan)<nowiki>#</nowiki>'''name evenNumber''' You will give it the name evenNumber
 
Switch(config-vlan)<nowiki>#</nowiki>'''exit''' To leave the VLAN mode
 
'''Assigning a VLANs to a port:'''
 
Switch(config)<nowiki>#</nowiki>'''int fa1/1'''
 
Switch(config-if)<nowiki>#</nowiki>switchport mode access
 
Switch(config-if)<nowiki>#</nowiki>switchport access vlan 2
 
Switch(config-if)<nowiki>#</nowiki>exit
 
 
'''Configuration a Trunk:'''
 
Switch(config)<nowiki>#</nowiki>int fa4/1
 
Switch(config-if)<nowiki>#</nowiki>switchport mode trunk
 
Switch(config-if)<nowiki>#</nowiki>switchport access vlan 2
 
Switch(config-if)<nowiki>#</nowiki>exit
 
 
'''Remove a VLAN from a Trunk:'''
 
Switch(config)<nowiki>#</nowiki>int fa4/1
 
Switch(config-if)<nowiki>#</nowiki>switchport trunk allowed vlan remove 1
 
 
'''Add a VLAN to a Trunk:'''
 
Switch(config)<nowiki>#</nowiki>int fa4/1
 
Switch(config-if)<nowiki>#</nowiki>switchport trunk allowed vlan add 1
 
 
'''Check with '''''ping''''' whether only personal computers in the same VLAN can be reached.'''
 
Ping from '''PC1''' (uneven) to '''PC3''' (even)
 
PC>ping 10.0.0.3 '''PC3'''
 
Pinging 10.0.0.3 with 32 bytes of data:
 
Reply from 10.0.0.3: bytes=32 time=5ms TTL=120
 
Reply from 10.0.0.3: bytes=32 time=4ms TTL=120
 
Reply from 10.0.0.3: bytes=32 time=4ms TTL=120
 
Reply from 10.0.0.3: bytes=32 time=4ms TTL=120
 
Ping from '''PC1''' (uneven) to '''PC2''' (even)
PC>ping 10.0.0.2 '''PC2'''
 
Pinging 10.0.0.2 with 32 bytes of data:
 
Request timed out.
 
Request timed out.
 
Request timed out.
 
Request timed out.
 
 
'''Why is the diagnosticcommand traceroute in this network not very useful?'''
 
These switches are on the network'' 'transperent''' (invisible). If you typing the traceroute command in, you will see only the PC listed.
 
 
'''Why are all personal computers in VLAN 1 reach but none in VLAN 2 2?'''
 
Because the lines (or interface) standard set in VLAN 1
 
Connect Switch3 and Switch4 so that Switch3 access to the VLAN 2 of Switch1.
 
 
'''Configuration Trunk:'''
 
Switch(config)<nowiki>#</nowiki>int fa4/1
 
Switch(config-if)<nowiki>#</nowiki>switchport mode trunk
 
Switch(config-if)<nowiki>#</nowiki>switchport access vlan 2
 
Switch(config-if)<nowiki>#</nowiki>exit
 
 
'''Remove a VLAN from a Trunk::'''
 
Switch(config)<nowiki>#</nowiki>int fa4/1
 
Switch(config-if)<nowiki>#</nowiki>switchport trunk allowed vlan remove 1
 
 
'''Add a VLAN to a Trunk::'''
 
Switch(config)<nowiki>#</nowiki>int fa4/1
 
Switch(config-if)<nowiki>#</nowiki>switchport trunk allowed vlan add 1
 
 
'''What sense could be to set up VLANs?'''
 
Go to disconnect networks
 
To access arrangements to servers and computers
 
 
'''What should happen, if you connect switch 1 and 2?. Why should it happen and how it is called? '''

There is a loop! It should be such that the spanning tree protocol a port in the loop disabled.

Exercise VLAN - Revision history

Florian: New page: following network is given Image:übungsbeispiel VLAN.JPG '''Exercise:''' * Connect with Switch 3 and get all MAC addresses, which knows this switch. * Typing the '''switchpor...

Florian: New page: following network is given Image:übungsbeispiel VLAN.JPG '''Exercise:''' * Connect with Switch 3 and get all MAC addresses, which knows this switch.
* Typing the '''switchpor...