On Fri, Nov 09, 2007 at 10:15:07AM +0000, Craig Skinner wrote: > On Thu, Nov 08, 2007 at 10:25:04PM +0000, Stuart Henderson wrote: > > > On 08/11/2007, Craig Hammond <[EMAIL PROTECTED]> wrote: > > > > > > > > me setup an obsd firewall. The adsl modem that the ISP sent only does > > > > bridging (Netgear DM111) and although I got it all working, it feels > > > > Looks like DM111 offers PPPoE/PPPoA "bridge" modes which sound like > > what some other boxes refer to as "half-bridge" or "DHCP spoofing", > > and also standard RFC1483 bridging. > > I had a DLink like this for a while, worked fine when I set it to PPPoA > (the usual for non-USA ADSL) bridge & DHCP on the client. > > Sounds stupid, but the router's WAN IP gets passed through to the PC via > DHCP so you get the static address that the ISP issues to the router and > the router becomes invisable to the Internet as your box has the > routable IP on its NIC. >
That's how I've used the last 2 ADSL modems I've had - both Westells. I put them in PPPoE bridging mode such that the modem passes the packets to my obsd box, which then gets assigned an IP address via DHCP. Works great. A bit of a pain sometimes if you're having upstream network issues and have to haggle with the telco support drone about what kind of "router you're using". Then, config pppd accordingly with user/pass from your ISP. It's a cinch with obsd and pf also works great. I've been using "ipcheck" to reconfig my A record with dyndns upon a change of IP with mixed success; sometimes I have to go do it manually. The default gateway assigned via DHCP with the two different ISPs I've done this with have been in the 10.* range.
