Mailinglist Archive: opensuse (1826 mails)

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Re: [opensuse] Moving to IPv6
  • From: James Knott <james.knott@xxxxxxxxxx>
  • Date: Thu, 09 Sep 2010 17:01:01 -0400
  • Message-id: <4C894B0D.4020306@xxxxxxxxxx>
John Andersen wrote:
On 9/9/2010 1:11 PM, James Knott wrote:

You don't have to you'll still have a router to connect to your ISP.
Wait, why would I need a router?

Seems to me all I would need was a firewall.

People have been vociferously pointing out in this thread that a router is not a
firewall. Was that you?

A router has always been necessary to move between IP (or IPX) networks. NAT came later. When you use the default (or other) route, you have to pass through a router. In the very early days, a computer was used as the router, just like we often use an old computer running Linux for one. Firewalls are often part of a router, but don't have to be. You can also have a bridging firewall that isolates two networks, on the same subnet, so that traffic between them is filtered or between the router and local network. It sounds to me like you should be doing some reading up on routers and firewalls. That might eliminate some of the confusion you're experiencing.

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