ZyXEL P-870MH-C1 User Guide - Page 165

Chapter 10 Firewall The following table describes the labels in this screen. Table 50 Firewall > Incoming LABEL DESCRIPTION Active Firewall Select this check box to enable the firewall on the Device. When the firewall is enabled, the Device blocks all incoming traffic from the WAN to the LAN. Create custom rules below to allow certain WAN users to access your LAN or to allow traffic from the WAN to a certain computer on the LAN. Active Select this check box to enable the rule. Filter Name This displays the name of the rule. Interfaces This displays the WAN interface(s) to which this rule is applied. Protocol This displays the IP protocol that defines the service to which this rule applies. Source Address This displays the source IP addresses and subnet mask to which this / Mask rule applies. Please note that a blank source address is equivalent to Any. Source Port This is the source port number. Dest. Address / This displays the destination IP addresses and subnet mask to which Mask this rule applies. Please note that a blank destination address is equivalent to Any. Dest. Port This is the destination port number. Modify Click the Edit icon to go to the screen where you can edit the rule. Add Apply Click the Remove icon to delete an existing rule. Note that subsequent rules move up by one when you take this action. Click Add to create a new rule. Click Apply to save your changes back to the Device. P-870HN-5xb User's Guide 165