-V-O-Y-A-G-E-R-: Da, nećeš moći tako ad hoc, moraš da imaš wi-fi router na koji će se wi-fi uređaji kačiti.

Upustvo za kreiranje Ad-hoc mreze na OS X-u imas ovde:

Creating an Ad-hoc Network

You can build a network between two wireless computers. They need not be using the same operating system. To create such a network, always start with the computer that will host the network. If you plan to give other members of the network access to the Internet through the wireless link, choose a computer that has a connection to the Internet as your network host.
1.
From the AirPort menu on the menu bar, choose Create network. If you haven't already enabled the AirPort menu in the Network System Preferences pane, do that first.
2.
Name your network in the Computer-to-Computer window.
3.
Leave the Channel setting alone unless there are a number of other wireless networks nearby. It's best that wireless networks by set to operate on channels as distant from other nearby networks as possible to minimize radio interference.
4.
To enable WEP for your network, click the Show Options button.
5.
Click Enable Encryption (using WEP) to activate the options.
6.
Type a password for your network, and then retype it.
7.
Click OK to complete the process.
8.
Choose Apple menu > System Preferences and click the Network panel.
9.
Select AirPort from the Show menu.

In order for wireless computers on a network to communicate, their IP addresses must be on the same subnet. An IP subnet is a range of numbers that create boundaries for your local network. When your network is managed by a wireless gateway, the gateway point's DHCP server typically hands out addresses within the same subnet to all members of the network.

Since your ad-hoc network does not have a server to provide addresses, you will need to create a static IP address for each device on the network. Using a private IP subnet, you can assign addresses that are valid only within the local network. For example, start by assigning the computer that hosts your network an IP address of 192.168.0.1, and give each client computer an address in that range (i.e. 192.168.0.2 through 192.168.0.254).

On each networked computer, use a subnet mask of 255.255.255.0 and be sure that the gateway address field of each is empty. Connect one or more computers to your new ad-hoc network, give them IP addresses.

Nisi obratio paznju, na tom linku postoje dva naslova. Drugi je howto za kreiranje ad-hoc mreze:

madamov: Ma jesam, ali vi mešate neke stvari, jedno je objašnjavati kako podesiti IP parametre za mrežu na KOJU SI SE VEĆ NAKAČIO, a drugo napisati kako i da li PC vidi tu mrežu. To bi bilo kao da mi daješ parametre za tvoju internu Ethernet mrežu, a da ja još nisam ukačio mrežni kabl u računar. Iz ovoga se ne vidi, a mene baš interesuje da li i kako Windows vidi Computer Network napravljen na Macu i obrnuto. Je li probao neko da može sa sigurnošću da tvrdi da to radi?

Nakon kreiranja mreže iz Airport menija i podešavanja parametara na oba računara