ZyXEL UAG4100 User Guide - Page 222

Chapter 14 NAT Table 97 Configuration > Network > NAT > Add (continued) LABEL Rule Name Classification DESCRIPTION Type in the name of the NAT rule. The name is used to refer to the NAT rule. You may use 1-31 alphanumeric characters, underscores(_), or dashes (-), but the first character cannot be a number. This value is case-sensitive. Select what kind of NAT this rule is to perform. Virtual Server - This makes computers on a private network behind the UAG available to a public network outside the UAG (like the Internet). 1:1 NAT - If the private network server will initiate sessions to the outside clients, select this to have the UAG translate the source IP address of the server's outgoing traffic to the same public IP address that the outside clients use to access the server. Many 1:1 NAT - If you have a range of private network servers that will initiate sessions to the outside clients and a range of public IP addresses, select this to have the UAG translate the source IP address of each server's outgoing traffic to the same one of the public IP addresses that the outside clients use to access the server. The private and public ranges must have the same number of IP addresses. Incoming Interface Original IP One many 1:1 NAT rule works like multiple 1:1 NAT rules, but it eases configuration effort since you only create one rule. Select the interface on which packets for the NAT rule must be received. It can be an Ethernet, VLAN, bridge, or PPPoE/PPTP interface. Specify the destination IP address of the packets received by this NAT rule's specified incoming interface. any - Select this to use all of the incoming interface's IP addresses including dynamic addresses or those of any virtual interfaces built upon the selected incoming interface. User Defined - Select this to manually enter an IP address in the User Defined Original IP field. For example, you could enter a static public IP assigned by the ISP without having to create a virtual interface for it. User-Defined Original IP Original IP Subnet/Range Mapped IP Host address - select a host address object to use the IP address it specifies. The list also includes address objects based on interface IPs. So for example you could select an address object based on a WAN interface even if it has a dynamic IP address. This field is available if Original IP is User Defined. Type the destination IP address that this NAT rule supports. This field displays for Many 1:1 NAT. Select the destination IP address subnet or IP address range that this NAT rule supports. The original and mapped IP address subnets or ranges must have the same number of IP addresses. Select to which translated destination IP address this NAT rule forwards packets. User-Defined Mapped IP Mapped IP Subnet/Range User Defined - this NAT rule supports a specific IP address, specified in the UserDefined Mapped IP field. This field is available if Mapped IP is User Defined. Type the translated destination IP address that this NAT rule supports. This field displays for Many 1:1 NAT. Select to which translated destination IP address subnet or IP address range this NAT rule forwards packets. The original and mapped IP address subnets or ranges must have the same number of IP addresses. UAG Series User's Guide 222