Hi
I have a DSL-500 with the latest firmware loaded, NAT enabled, a DMZ setup to a non-existent IP (stealthed ports), and port 3389 forwarded to a PC on the LAN (192.168.0.111).
If the firewall is disabled, remote desktop works fine. If I enable the firewall RDP doesn't work.
Q1. Is the firewall really necessary, since all ports except 3389 are stealthed, and all PC's are behind NAT?
Q2. What, if any, are the security implications of leaving port 3389 open?
Q3. Has anyone successfully got RDP working with the DSL-500 firewall?
The rule (one of many) I have setup to allow port 3389 through is as follows:
Name: RDP_IN State: enabled Pass or Block: Pass Protocol: TCP Source IP: 0.0.0.0 Subnet Mask: 255.255.255.255 (/32) Start Port: 0 End Port: 0 Dest IP: 192.168.0.111 Subnet Mask: 255.255.255.0 (/24) Start Port: 3389 End Port: 3389
Thanks
sma11