2008/11/15 Luke Dean <[EMAIL PROTECTED]>
> Port-forwarding through two NATs is something I've never had any success
> with. I have a few suggestions that have worked for me and my friends with
> this setup.
> A) Disable NAT on the ADSL router. I think the term is "bridged mode".
> Turn it into a dumb box and shift all the NAT/firewall/routing
> responsibilities over to your wireless router. Depending on your ISP, the
> hardware, and the protocols involved, this may not be an option for you.
> B) Disable NAT on the wireless router. This allows it to be a simple
> switch and wireless access point. The price is that you're probably relying
> on the DHCP server in the wireless router for your wireless devices and
> you'll have to disable the DHCP when you disable NAT. This creates new
> problems to be solved.
> C) Plug the FreeBSD box into the ADSL router, skipping the wireless router.
> Your wireless devices will still be double-NATted, but if you're not
> running servers on them, you might be able to live with that.
Thank you very much, your advices were very helpful and I now have a working
port forwarding through two routers. Sorry for the delay in the answering,
it took me some time to test various options...
Actually your (A) advice is what did the job. I turned off DHCP server on
ADSL router and enabled "NAT - DMZ Host" option on it (for which I realized
that it was the closest to your description of "bridged mode").
Then I configured the wireless router to use static IP config instead of
expecting DHCP server. The situation is now this:
wan : xx.xx.xx.xx FreeBSD box (wired)
lan : 192.168.1.1 ip: 192.168.0.102
| laptop gateway: 192.168.0.1
| (wireless) |
[internet plug] ip: 192.168.0.101 |
Wireless router gateway: 192.168.0.1 |
wan : 192.168.1.2 : |
lan : 192.168.0.1 . . . . . : |
[ethernet plug] |
DMZ host for ADSL router is 192.168.1.2 -- and it works!
I have one question more (forgive my ignorance): now the wireless router is
configured to use static IP config and I must provide one or more "Static
DNS servers" to it. Is it ok to type just "192.168.1.1" as DNS (which works
for now) or to copy DNS servers which are automatically provided to the ADSL
router by the ISP?
Once again, thank you.
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