User's Manual

X5671 User’s Guide
28
ALG
A ALG (Application Layer Gateway) is a method to allow specific application to pass
through NAT firewall.
Figure 31: ALG configuration
Global Setting
4 Check to select SIP ALG enabled
4 Click Save/Apply
Security
The Security feature provides two more setting pages including IP filtering in Route
mode, MAC filtering and Parental Control.
IP Address Filter
The device can block the packet in outgoing and incoming directions. By default, all
outgoing IP packets from LAN is allowed to surf Internet, but some IP packets can be
blocked by setting up filters.
Figure 32: Outgoing IP Filter Setup
Click Add to add a rule of Outgoing IP Filtering.
Check Remove and click Remove to remove the specified entry.