I have a Cisco ASA firewall with 3 network interfaces, outside, inside and dmz.
I need my servers in the DMZ to be able to browse the network trough my network places and see the clients on the inside interface.
when I permit ALL traffic between interfaces, this works ok, but when I block traffic and allow only a certain number of ports for generic services (smtp, web, email and RDP) the network browsing stops working. I have NETBIOS enabled on the dmz servers. What ports do I need to open between the dmz subnet and the inside subnet to allow browsing of the internal network?