On Tue, 2008-10-14 at 06:46 -0400, Michael Powell wrote:
> Jeremy Chadwick wrote:
> > On Tue, Oct 14, 2008 at 04:55:11AM -0400, Michael Powell wrote:
> >> Next, you will want to configure your FreeBSD machine as a NAT gateway.
> >> In your /etc/rc.conf you will want something like gateway_enable="YES"
> >> and some form of firewall initialization. The gateway_enable is what
> >> allows the forwarding of packets between your rl0 and your rl1, but the
> >> activation of NAT functionality is usually a function contained within a
> >> firewall. So conceptually, the firewall will be "in between" rl0 and rl1.
> >> There are three different firewalls you can choose from. Configuring the
> >> firewall is usually where the inexperienced get stuck. This subject
> >> material is beyond the scope of this missive, and you would do well to
> >> start reading in the Handbook. But essentially, when you configure NAT in
> >> the firewall your rl0 (connected to the ISP) will be assigned a "Public"
> >> IP address and the NAT function will translate between "Public" and
> >> "Private".
> With respect to "NAT", the caveat here is the assumption that your DSL/Cable
> modem is *not* already performing NAT. The situation you do not want to get
> into is having *two* NATs. The content herein is assuming that the external
> (rl0) interface is getting assigned a "Public" IP from the ISP.
If this is the case wouldn't the OP set router_enable=YES instead of
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