SFE2000 and VLAN

Before we begin, I want to say that I saw "' responses to my question, but never exactly what I'm looking for, so I create a new post.  I'm not a network engineer, so please forgive my ignorance.

We are a public library.  We have a network that includes a number of branches, through the central site of the main library.  We show an ASA firewall. We have a Cisco3825 for local and a series of Cisco2800 Internet connection.  We use a system of 192.168.xx.xx, using DHCP network.  We have a number of PCs that are on the network access to the public and they are locked by using various software that prevent people to do much except get Internet.

What we want to do is to put the public pc in their own network, always using our Internet connection, but not allowing them to see or access one of our 192. addresses.

We bought a Linksys SFE2000 and it is my understanding that if I use it as a layer 3 switch, we can do what I suggested above.  However, I get so far and I reached my level of incompetence!  We want that all the public pc to come through the SFE2000 and although about allowing the public to use a wireless connection (but that is located).

Can anyone offer suggestions or point me to a site that will help me?  Thanks in advance and again, sorry for my ignorance.  I look forward to hearing from anyone.

Well, the router must have at least one interface. If the interface is used otherwise you can simply run it through the router as well.

If you want to use the features of the ESF L3 basically configure you the VLAN as I've mentioned before. You enable L3 on the ESF, then you configure filtering on the ESF for the VLAN 'public '. Drop everything that goes in your charge of private VLAN.

The problem is the connection to the router. We must define a new IP subnet for routing between the CPE and the Cisco. So, basically you will need a 3rd VLAN to connect with the Cisco. You can use a very small for this IP subnet if you wish. For example, add VLAN3 with IP address 192.168.99.101/255.255.255.252. The port on the Cisco configure IP address 192.168.99.102/255.255.255.252. On the ESF, set the default gateway 192.168.99.102. Who should route all internet traffic to the Cisco.

Tags: Linksys Switches

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