ZyXEL Communications P-661H Series - Manual (Page 170)

P-661H/HW Series User’s Guide
170 Chapter 9 Firewall Configuration
Figure 93 Firewall Example: Edit Rule: Destination Address
9 Use the Add >> and Remove buttons between Available Services and Selected Services
list boxes to configure it as follows. Click Apply when you are done.
Note: Custom services show up with an “*” before their names in the Services list
box and the Rules list box.