[kndonlee]

I have a little home network, but I have an old graphite basstation... The basestation is currently setup for NAT from ethernet to wireless....

What I'd like to do is have one of the computers with both ethernet and airport to act as a bridge between the wireless and physical network. This is because if I were to hook up the basestation to the physical network via hub or switch, then my private network and my ISPs network would be on the same physical network.. which is a big no no... I'm trying to keep the networks separate...

So any help is appreciated!

thanx in advance!

Donald Lee

[chabig]

Donald,

The snow base station can do this easily because they have one ethernet port for the ISP network and a separate ethernet port for the locla network. You might find it advantageous to buy one of the new Airport Extreme base stations for $199 and sell the graphite.

If you want an inexpensive solution, just use any machine running Mac OS X 10.2 to bridge the two networks. This is turned on in the System Preferences, Sharing pane, Internet tab.

Chris

[kndonlee]

In time I'd like to get a snow basestation or one of the new ones, but I need an inexpensive solution for now.

By turning on the Internet sharing from a computer running 10.2, it's running NAT on an already NATed network. I could do that, but I'd like for the physical and Airport machines to be on the same subnet.

From a security standpoint anyone would want to separate the two networks into different subnets, but being a small home network, I don't see the necessity as of yet.

I know the basestation has an option to do wireless to ethernet bridging, acting as a transparent device on the network, but I'd like to achieve that functionality from a differnt device, ie. my desktop computer.

This would make for all comptuers and laptops whether on the wireless or physical network to be on the same subnet, so we can do let rendevouz do it's job for filesharing, and itunes music sharing, etc...

[chabig]

I understand what you want to do. This should work:

Code:
(ISP) -- (10.2 desktop) -- (hub/switch)
                           |        |
                           |        |
               (wired machines)  (base station)
                                    |
                                    |
                              (wireless machines)

With this topology, you'll have one NAT server (the 10.2 desktop) so you're entire network will be on the same subnet. Set up the basestation to do bridging only.

Chris

[absmiths]

Originally posted by chabig:
I understand what you want to do. This should work:

Code:
(ISP) -- (10.2 desktop) -- (hub/switch)
                           |        |
                           |        |
               (wired machines)  (base station)
                                    |
                                    |
                              (wireless machines)

With this topology, you'll have one NAT server (the 10.2 desktop) so you're entire network will be on the same subnet. Set up the basestation to do bridging only.

Chris

As long as you don't use internet sharing - it will piss you off every time the 10.2 machine gets rebooted and your entire network goes offline (and stays that way until you log on to that machine at the console and restart internet sharing).

I have a router which does NAT connected to my ISP and my base station just acts as a bridge so everyone is on the same network (I don't use DHCP, however, I use all static addresses).

[kndonlee]

phew.. I forgot all about this Post... Actually I still need some type of bridging like NetBSD offers.

The Above Diagram makes it necessary for the 10.2 Desktop to have two ethernet cards.


My 10.2 now 10.3 Desktop is an iMac, which can't have 2 ethernet cards.

-------------------

But Anyway, My setup Has Changed since anyway... Here's the new setup.


(ISP -> Cablemodem) -- (------hub-----------)
| |
| |
(iMac Web/eMail/Ftp Server IP#1) (router IP#2) -- (Switch)
| |
(BaseStation bridge mode) |
| (wired machines)
( wireless machines)


-----------------------

The only way to speak to the iMac is via the internet. Which is limited to 500kb/sec. However, I'd like for the wired machines to be able to directly talk to the iMac at 100Mb/sec. To acheive this, I could setup of a bridge between the firewire and ehternet ports on a machine and connect to the iMac's firewire port like it was an ethernet port. the wired machines could talk to the bridge machine, to get ot the iMac quickly.. anyway...