ZyXEL VMG4927-B50A User Guide - Page 191

Chapter 16 Firewall Table 77 Security > Firewall > Protocol: Add/Edit (continued) LABEL DESCRIPTION Protocol Source/ Destination Port Choose the IP protocol (TCP, UDP, ICMP, ICMPv6 or Other) that defines your customized port from the drop-down list box. Select Other to be able to enter a protocol number. These fields are displayed if you select TCP or UDP as the IP port. Select Single to specify one port only or Range to specify a span of ports that define your customized service. If you select Any, the service is applied to all ports. Protocol Number ICMPv6 Type Type a single port number or the range of port numbers that define your customized service. This field is displayed if you select Other as the protocol. Enter the protocol number of your customized port. This field is displayed if you select ICMPv6 as the protocol. OK Cancel Enter the type value for the ICMPv6 messages. Click OK to save your changes. Click Cancel to exit this screen without saving. 16.4 Access Control Click Security > Firewall > Access Control to display the following screen. This screen displays a list of the configured incoming or outgoing filtering rules. Figure 110 Security > Firewall > Access Control The following table describes the labels in this screen. Table 78 Security > Firewall > Access Control LABEL DESCRIPTION Add New ACL Rule Click this to go to add a filter rule for incoming or outgoing IP traffic. # This is the index number of the entry. Name This displays the name of the rule. Src IP This displays the source IP addresses to which this rule applies. Please note that a blank source address is equivalent to Any. Dst IP This displays the destination IP addresses to which this rule applies. Please note that a blank destination address is equivalent to Any. Service This displays the transport layer protocol that defines the service and the direction of traffic to which this rule applies. VMG4927-B50A / VMG9827-B50A User's Guide 191