quote:
Originally posted by alegator
So the basic config would be:
- The ADSL signal cable going to the Cisco ADSL modem
- A network cable going from the Cisco ADSL modem to the Cisco Router
- A network cable going from the Cicso router to the PC
- The netbook accessing the internet via wireless using the router.
One thing that no one so far has mentioned is that you should make sure your ADSL modem isn't already acting as a NAT router. If it is and you stack another one behind it, you will have two stacked layers of NAT and it may appear to work at first. However, you will have all sorts of problems with anything more complicated than basic web browsing with such a setup. Router functionality in ADSL modems is not uncommon.
If you haven't changed anything yet, the easiest way to tell is to check what IP address your computer gets when directly connected to the modem. If it is any of the following, the modem is doing NAT already:
192.168.*.*
172.16.*.* - 172.31.*.*
10.*.*.*
If you are getting an address in one of those ranges, you will want to either disable the router function in the modem (if you can) when you introduce your wireless router, or configure the wireless router differently.
We will get to the details of that if needed.
