How do I segment a Catalyst 2900XL

If the 3 vlans need to communicate you will need a router. Of not, a pure vlan setup will be fine.

"Jake" skrev i en meddelelse news: snipped-for-privacy@b28g2000cwb.googlegroups.com...

Then your actually not wrong. Create the three vlans and assign them to the ports as you described.

The 3 vlans will not be able to see each other and will not be able to communicate from one vlan to another. The only issue can be that the XL switch is to old and do not have support for vlans.

Something like the following, perhaps:

int fa0/1 description --- access port / network 1 --- switchport access vlan 101 spanning-tree portfast no cdp enable ! ! ports fa0/2..fa0/7 - similar to fa0/1 ! int fa0/8 description --- uplink port / network 1 --- switchport trunk native vlan 101 switchport mode trunk !

Then similarly for network 2 ("vlan 102") and network 3 ("vlan 103").

Why trunk on int fa0/8 if no inter-vlan communication is needed?

Doan

Exactly, do not use a different config for fa0/8, use the same for fa0/1 to fa0/8. And if I recall correctly the 2900xl's use ISL as their default trunking protocol and ISL tags all frames so the "switchport trunk native ..." statement will not work. My advise:

int fa0/1 description --- access port / network 1 --- switchport mode access switchport access vlan 101 spanning-tree portfast no cdp enable

for all ports and only vary the "switchport access vlan xxx" statement.

Regards, erik

Thanks Everybody, your help has been great. I got this working with the following config:

! version 12.0 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname DellRackSwitch ! enable secret ! ! ! ! ! ! ip subnet-zero ! ! ! interface FastEthernet0/1 description ---CWISP Access Port switchport access vlan 102 no cdp enable ! interface FastEthernet0/2 description --CWISP Access Port switchport access vlan 102 no cdp enable ! interface FastEthernet0/3 description ---CWISP Access Port switchport access vlan 102 no cdp enable ! interface FastEthernet0/4 description ---CWISP Access Port switchport access vlan 102 no cdp enable ! interface FastEthernet0/5 description ---CWSIP Access Port switchport access vlan 102 no cdp enable ! interface FastEthernet0/6 description ---CWISP Access Port switchport access vlan 102 no cdp enable ! interface FastEthernet0/7 description ---CWISP Access Port switchport access vlan 102 no cdp enable ! interface FastEthernet0/8 description ---CWISP Access Port switchport access vlan 102 no cdp enable ! interface FastEthernet0/9 description ---Wireless Access Port switchport access vlan 101 no cdp enable ! interface FastEthernet0/10 description ---Wireless Access Port switchport access vlan 101 no cdp enable ! interface FastEthernet0/11 description ---Wireless Access Port switchport access vlan 101 no cdp enable ! interface FastEthernet0/12 description ---Wireless Access Port switchport access vlan 101 no cdp enable ! interface FastEthernet0/13 description ---Wireless Access Port switchport access vlan 101 no cdp enable ! interface FastEthernet0/14 description ---Wireless Access Port switchport access vlan 101 no cdp enable ! interface FastEthernet0/15 description ---Wireless Access Port switchport access vlan 101 no cdp enable ! interface FastEthernet0/16 description ---Wireless Access Port switchport access vlan 101 no cdp enable ! interface FastEthernet0/17 description --Shop Access Port switchport access vlan 100 no cdp enable ! interface FastEthernet0/18 description ---Shop Access Port switchport access vlan 100 no cdp enable ! interface FastEthernet0/19 description ---Shop Access Port switchport access vlan 100 no cdp enable ! interface FastEthernet0/20 description ---Shop Access Port switchport access vlan 100 no cdp enable ! interface FastEthernet0/21 description ---Shop Access Port switchport access vlan 100 spanning-tree portfast no cdp enable ! interface FastEthernet0/22 description ---Shop Access Port switchport access vlan 100 no cdp enable ! interface FastEthernet0/23 description ---Shop Access Port switchport access vlan 100 no cdp enable ! interface FastEthernet0/24 description ---Shop Access Port switchport access vlan 100 no cdp enable ! interface VLAN100 description Shop no ip directed-broadcast no ip route-cache ! interface VLAN101 description Wireless no ip directed-broadcast no ip route-cache ! interface VLAN102 description CWISP no ip directed-broadcast no ip route-cache ! no ip http server no cdp run snmp-server community RO ! line con 0 transport input none stopbits 1 line vty 0 4 password login line vty 5 15 password login ! end

Okay, hold on. So, does 2900XL support VLAN or not?

Mart> "Jake" skrev i en meddelelse

Yes it does. Both versions of the 2924 support VLANing. Only the 2924XL with enterprise software does VLAN trunking. There's a bunch of non XL switches on eBay that don't do trunking, as well as some of the desktop XL version that won't do trunking either.