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New Member

IP Routing and Subnetting

I wonder if I can grab some advice..

I work on a small network of around 120 users and 30-odd servers spread across 30 switches (made up of a 5-switch 3750 stack, a 3550 acting as a fibre-optic relay and the rest are 2950s and 2970s).

Currently the entire network is run from a subnet mask of and a network address of

Unfortunatly this doesn't help User Tracking work in LMS so I'm trying to put a plan together to break the network down into smaller subnets (ie , and so on) - however I don't want to impliment VLANS.

My problem comes when looking at setting up the routing - without using inter-vlan routing, can I setup multiple interfaces on a single VLAN on the 3750??

Thanks in Advance..


Re: IP Routing and Subnetting

You could certainly have secondary interfaces configured on a single VLAN interface on the 3750. However, this would not be very efficient. It's probably better for you to split the network up into VLANs for the long run.

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New Member

Re: IP Routing and Subnetting

Thanks - it's not very efficient but I'm trying to avoid the admin overhead and configuration overhead produced by VLANs.

Thanks again.

New Member

Re: IP Routing and Subnetting

You want to segment your large network with out vlans. All you need is a layer3 switch or a router with a routing ethernet port for each network. Use it to route between the networks. Your equipment overhead will be higher( cost of the l3 switch or a router with enough ethernet ports) and the managment overhead will not be much less that the vlan settup. I believe you can use your current equipment if you use vlans to sement the network.


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