On Tue, Oct 14, 2008 at 06:46:10AM -0400, Michael Powell wrote: > Jeremy Chadwick wrote: > > > On Tue, Oct 14, 2008 at 04:55:11AM -0400, Michael Powell wrote: > [snip] > >> 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[1]. 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. > > [snip] > > > > Doesn't he need to also set sysctl net.inet.ip.forwarding=1 for his > > box to act as a gateway? Or is this handled by the NAT portion? > > > The gateway_enable="YES" in /etc/rc.conf sets this.
Right, but it wasn't in your /etc/rc.conf example (see your mail), so I figured the OP would come back saying "Okay I did what you said but it still doesn't work!" -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
