As I said in a previous post, I've been working on a Cisco Unified Wireless implementation. I gave a brief overview of UW (unified wireless) below, but I want to go into depth on the topic of Guest Access. The documentation is limited and I just want to take some time to share how I'm implementing Guest Access and the configuration required.
Guest Access is pretty much what it sounds like. It's taking your wireless infrastructure and allowing "guest" users to access it while keeping your existing UW infrastructure secure. This could be used to provide Internet access to vendors visiting your facilities, or could go beyond and actually act as a open hotspot for customers. The version of Guest Access I'm working on involves allowing guests at our corporate campus to use our Internet connectivity for presentations/remote VPN access. Our corporate campus is comprised of multiple facilities all linked over our private MPLS VPN cloud.
Let me go a little bit into the architecture behind the implementation. In our headquarters facility we have installed a Cisco 4402 Wireless LAN controller. This controller acts as the "nexus" for our Guest Access infrastructure, along with allowing secure access to internal network resources for mobile employees. Our satellite offices, also part of the corporate campus, are all connected via Cisco 2811 Integrated Services Routers. In these offices we will be using NM-WLC-6 network modules. Essentially these modules are Wireless LAN Controllers which sit on-board ISR routers.
I don't want to get too in-depth with Guest Access this first post. Let me leave with a quick diagram of how I've decided to implement Guest Access. In future posts I'll go into detail as to how this can be implemented. Keep in mind that my implementation may not be the same as yours, but the concepts I use may be shared amongst many implementations.
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