firewall question, allowing everything..

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bit of a background, i have a router on my broadband connection which has a built in firewall and NAT, and is hard wired to a windows box and the fedora box.

everything this side of the router is "trusted" and i dont run firewalls on any of my machines, and i dont have any need too.

i have a wireless card in the fedora box (fc3 with latest stack16 kernel) and a laptiop. these are connected on a secure ad-hoc connection with the fedora box set up as the linux equivalent to a windows internet conection shareing box. (to do this i had to install a firewall on the fedora box)

all computers have net access.

the problem is, that the fedora box seems to assume everything on the router side of it is "untrusted" so my main machine which is hard wired to the router canot acces samba shares or vnc on the fedora box, or windows(smb) shares on teh laptiop. similarly neither the laptop or the fedora machine can access smb shares on the windows desktop. i have tried my best to get teh firewall to allow everything (firestarter) but simply cant get it to trust what it thinks is the external network :confused: I have also tried to ge tit to forward teh services form laptop to desktop, as well as the vnc service. but to no avail.

any ideas? .. appologies for the small story!

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i guess i should add, with the firewall disabled, all machines can acces tehre shares and vnc works etc. if the laptop is hard wired to the router it too can see the shares, if it is jus ton wireless it receives an ip address form the fedora box and they can ping each other, but without the firewall to route traffic it has no net access.

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jsut noticed in a thread further down firestarter is a frontend for iptables ... *goes off to do some reading* i just assumed it wasnt. will report back if i dont get it sorted.

cheers.