samba problem

[geralds]

Hi samba-technical,

 i installed samba propely and configured it as a domain server of my LAN , 
and at the same time as a gateway (with a firewall) to the Internet.

Initially before configuring the firewall and connecting to the internet, 
samba was working properly. But after connecting to the intrenet and 
activating the firewall samba couldn't work

i'll be gratefull for your advice
Thanks
Rgds,  Segie