On Fri, Jul 09, 2010 at 02:19:42PM -0700, Matt S wrote: > Given the following: > > [internet - DSL Modem - 192.168.0.1]----------[bge0:192.168.0.254 - OpenBSD > 4.7 - em0:10.40.60.1]----------[Laptop - DHCP] > > net.inet.ip.forwarding=1 > > How can I get my laptop to reach the internet? I kind of figured that all I > would have to do is have forwarding enabled on the OpenBSD box without > specifying any additional routing instructions. I can ping my laptop from > the OpenBSD box. Since my default gateway is effectively 192.168.0.1, I am > puzzled as to why I cannot ping that address from the laptop. What could I > possibly be missing? I'm tearing my hair out ..... >
The modem has no route to 10.40.60.0/[whatever your netmask is, perhaps you should have included enough information] It will reply to this mysterious "internet" where its default route points. This configuration is not guaranteed to work even if you add a static route in the modem, since it may not nat source addresses not within 192.168.0.0/[whatever netmask it is]. It's probably easiest to nat connections from 10.40.60.1/[...] on the openbsd box.
