I will buy a Cisco 3845 router.
need 2 FastEthernet and 8 serial interface.
I think I need to buy 2 x NM-2W, 4 x WIC-2T. 3845 has FREE two 10/100/1000 interface. Right?
Please help to confirm it and give me a reference link (if it's possible).
Why would you need the nm-2w?
You can put 4 wic 2-t directly into the slots on the router. It has 4 hwic slots. You can also get wic-4t cards that go into these routers. You could put in 2 wic-4t cards.
This is the spec sheet for the 3800