ZyXEL Communications Parental Control Gateway HS100/HS100W - Manual (Page 139)

HomeSafe User’s Guide
NAT Screens 9-9
Configuring Address Mapping
To edit an address mapping rule, select the radio button of a rule and click the Edit button to
display the screen shown next.
Figure 9-6 Address Mapping Edit
The following table describes the labels in this screen.
Table 9-6 Address Mapping Edit
LABEL DESCRIPTION
Type Choose the port mapping type from one of the following.
1. One-to-One: One-to-one mode maps one local IP address to one global IP
address. Note that port numbers do not change for One-to-one NAT mapping type.
2. Many-to-One: Many-to-One mode maps multiple local IP addresses to one
global IP address. This is equivalent to SUA (i.e., PAT, port address translation),
ZyXEL's Single User Account feature.
3. Many-to-Many Overload: Many-to-Many Overload mode maps multiple local IP
addresses to shared global IP addresses.
4. Many One-to-One: Many One-to-one mode maps each local IP address to
unique global IP addresses.
5. Server: This type allows you to specify inside servers of different services behind
the NAT to be accessible to the outside world.
Local Start IP This is the starting Inside Local IP Address (ILA). Local IP addresses are N/A for
Server port mapping.
Local End IP This is the end Inside Local IP Address (ILA). If your rule is for all local IP
addresses, then enter 0.0.0.0 as the Local Start IP address and 255.255.255.255
as the Local End IP address.
This field is N/A for One-to-One and Server mapping types.
Global Start IP This is the starting Inside Global IP Address (IGA). Enter 0.0.0.0 here if you have a
dynamic IP address from your ISP.
Global End IP This is the ending Inside Global IP Address (IGA). This field is N/A for One-to-One,
Many-to-One and Server mapping types.
Apply Click Apply to save your changes back to the HomeSafe.
Cancel Click Cancel to return to the previous screen and not save your changes.
9.6 Trigger Port Forwarding
Some services use a dedicated range of ports on the client side and a dedicated range of ports on
the server side. With regular port forwarding you set a forwarding port in NAT to forward a