We have several Cisco 831 routers, most of which are using the IOS version 12.2(13)ZH4. I am given the task of finding the right software for 831 that will be able to do atleast the first 2 of the following if not all 3 feature sets.
1. Firewall N2H2 support
2. Virtual LAN's
3. DMZ zone
I am not quite sure what feature does VLAN fall under and so I have not been able to find anything so far.
Anyone has any suggestions as to what software will work with the top 2 listed features?
Also I am novice when it comes to configuring the routers and would like all the help in configuring the Vlan part of my task.