I've been tasked with a major upgrade to my current network and internet access.
1. I need to have an internal private network with access to the internet. This will be for large meetings, and I'll use a private network with 2048 addresses.
2. I also will have a small publid network with 8 routable addresses for Firewall, Web Server, PAT (NAT overload) for the above Private network internet access.
3. I want to split a class C address into two networks to allow one network (128 addresses) for Guest use that need routable addresses, and a second network (the other 128 addresses) for specific meetings that also need routable addresses.
I have:
I have been issued a router from my ISP. They have allocated me one .248 network with 8 addresses (6 usable) and a full class C network.
A Cisco 1841 router with 2 FA ethernet ports. I would like to use one FA port at the outside (to my ISP router) and the other FA port as my Inside port (to all other networks). I will do NAT Overload.
I also have a Layer 3 Catylist 3750 switch.
Do I need to set up VLANs for each Network?
Can I place my network hardware on the 10 network?
Do I need router sub interfaces for my VLANs and can I PAT on a Subinterface?
