User's Manual

User Manual
46
5.4 Firewall
5.4.1 ACL
Access control list (ACL) is an access control technology based on packet
filtering. It can pass or discard the packets on the interface based on preset
conditions.
Scenario: All devices in the LAN (bridge 1) can access the Internet, except the
device with IP address 192.168.2.100.
Method for setting in ER800:
1. Click "Firewall >> ACL >> Add". Enter the ID and sequence number. A smaller
sequence number indicates a higher priority. Select "deny" for "Action". Set
"Source IP" to "192.168.2.100" and "Source Wildcard" to "0.0.0.0". Leave
"Destination IP" empty, which indicates 0.0.0.0/0, that is, all IP addresses. Click
Apply & Save.