I have a couple of cisco 1720 modular access routers. Do these routers come with a firewall? I have heard of the 1721 router referred to as a firewall and was just wondering if the 1720 is the same and if not, what the primary differences are between the two.
Also, as far as firewall is concerned regarding these 2 routers, is it an IOS firewall the comes on these routers and is the IOS firewall different from a PIX firewall? If you know how to configure one, would you know how to configure the other?
How could i check on the routers to see if they have firewall functionality?
Thanks for any clarity on this matter.