06-09-2010 03:02 PM - edited 03-06-2019 11:30 AM
Hi all,
I have the following network appliances to setup my network:
1 x 24p Cisco 3560
1 x 24p Cisco 2950T
1 x 8p Cisco 2960
1 x Firewall Zyxel USG300 (gateway to internet)
I have to isolate the production environment (15 Windows computers) from the rest of the LAN (20 computers between sales, staff, accounting, etc.). I have one SBS 2003, and I need to create a domain for all the network. How would you isolate these 15 computers?, do I have to use two different VLANS?, the isolated machines needs to get access to the SBS2003 to join the domain, and also to the Firewall/gateway to get internet access. We've received all the Cisco switches from a different company.
Any hint/advice would be greatly appreciated
Thanks a lot
06-09-2010 03:12 PM
You need to configure Dot1Q Trunking in order to use inter-VLAN communication.
Configuring InterVLAN Routing and ISL/802.1Q Trunking on a Catalyst 2900XL/3500XL/2950 Switch Using an External Router
You have a 3560 which could be used as a Layer 3 router for Dot1Q Trunking.
Configuring 802.1Q Trunking Between a Catalyst 3550/3560/3750 and Catalyst Switches That Run Cisco IOS Software
Hope this helps and please don't forget to rate useful posts. Thanks.
06-09-2010 03:30 PM
Thank you very much leolaohoo !
So where would you configure the .Q1, in the 3560 or in the router, or do I have to do it in both?
To understand it better, the dotQ1 has to be set for inter-VLAN routing right?, where do I have to configure the trunk, in one of the 3560 ports?
Thanks again !
06-09-2010 03:35 PM
If you have a router, I'd recommend that you configure Dot1Q trunking on the router (aka router-on-a-stick) using the first link. If you don't have one, you can configure the 3560 switch (2nd link).
06-09-2010 03:42 PM
Thanks again,
I'd have to do it in the L3 switch as there is a firewall between the router and the switch.
I'll try the second option !
Santi
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