Firewall Rule Configuration Examples - D-Link DSR-250N User Manual

Unified Services Router

5.3.1 Firewall Rule Configuration Examples

Example 1: Allow inbound HTTP traffic to the DMZ
Situation: You host a public web server on your local DMZ network. You want to
allow inbound HTTP requests from any outside IP address to the IP address of your
web server at any time of day.
Solution: Create an inbound rule as follows.
Parameter
From Zone
To Zone
Service
Action
Send to Local Server (DNAT IP)
Destination Users
Log
Example 2: Allow videoconferencing from range of outside IP addresses
Situation: You want to allow incoming videoconferencing to be initiated from a
restricted range of outside IP addresses (132.177.88.2 - 132.177.88.254), from a
branch office.
Solution: Create an inbound rule as follows. In the example, CUSeeMe (the video
conference service used) connections are allowed only from a specified range of
external IP addresses.
Parameter
From Zone
To Zone
Service
Action
Send to Local Server (DNAT IP)
Destination Users
From
To
Enable Port Forwarding
Value
Insecure (WAN1/WAN2)
Public (DMZ)
HTTP
ALLOW always
192.168.5.2 (web server IP address)
Any
Never
Value
Insecure (WAN1/WAN2)
Secure (LAN)
CU-SEEME:UDP
ALLOW always
192.168.10.11
Address Range
132.177.88.2
134.177.88.254
Yes (enabled)
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