And I'm not really sure how to use it. I haven't really played around with Cisco hardware before, more of the switches / routers I have used had a GUI accessed via internal IP.
The reason I picked this one up was to learn how to use the Cisco command line, and train my self to under stand networking a bit better.
The model number of this switch is a "WS-C2948G", I picked up at a used PC parts store for $80, for a 48 port switch that' seemed like a great deal.
I have it up and running, however I had to place my Netgear router behind it in order for it to assign DHCP.
Now the question I have is this, how do I access the GUI or command line for this switch? It didn't come with any software, nor any instructions. A search online shows that there is a piece of management software named Ciscoworks 2000, Cisco Unified CallManager Serviceability Administration Guide, Release 4.2(3) - Overview of CiscoWorks2000* [Cisco Unified Communications Manager (CallManager)] - Cisco Systems.
My goals with switch are the following, I would like to set up two internet connections. One as the main, the other as a fail over.
Secondly I would like to configure a VPN using a DYNdns address with it.
Are this things possible? Thanks for your help guys
To answer your questions, no. The 2948 is Layer 2 only as far as I'm aware, and even Layer 3 switches can't do VPNs.
Also, the switch you have runs old CatOS rather than the more prevalent and modern IOS (well I say modern, it's been around many years, but CatOS is extremely old nowadays). It's very rare you'll see anything running CatOS these days in a production environment, and most of the kit was end of lifed years ago.
Honestly, you've overpaid quite a lot for a very, very outdated switch. You can access it from the console port on it (if you have a serial port, or USB-to-serial adapter, you'll need to hook it up, connect a Console cable and set your terminal to 9600 baud, flow control off, 8n1 etc), but you aren't going to be able to learn much that is relevant nowadays. Sorry!