Chapter 13 NAT

Table 84 Configuration > Network > NAT > Add (continued)

LABEL

DESCRIPTION

Incoming Interface

Select the interface on which packets for the NAT rule must be received. It can be an

 

Ethernet, VLAN, bridge, or PPPoE/PPTP interface.

 

 

Original IP

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 field.

 

For example, you could enter a static public IP assigned by the ISP without having to

 

create a virtual interface for it.

 

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.

 

 

User Defined

This field is available if Original IP is User Defined. Type the destination IP address

Original IP

that this NAT rule supports.

 

 

Original IP Subnet/

This field displays for Many 1:1 NAT. Select the destination IP address subnet or IP

Range

address range that this NAT rule supports. The original and mapped IP address

 

subnets or ranges must have the same number of IP addresses.

 

 

Mapped IP

Select to which translated destination IP address this NAT rule forwards packets.

 

User Defined - this NAT rule supports a specific IP address, specified in the User

 

Defined field.

 

HOST address - the drop-down box lists all the HOST address objects in the ZyWALL. If

 

you select one of them, this NAT rule supports the IP address specified by the address

 

object.

 

 

User Defined

This field is available if Mapped IP is User Defined. Type the translated destination

Original IP

IP address that this NAT rule supports.

 

 

Mapped IP Subnet/

This field displays for Many 1:1 NAT. Select to which translated destination IP address

Range

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.

 

 

Port Mapping Type

Use the drop-down list box to select how many original destination ports this NAT rule

 

supports for the selected destination IP address (Original IP). Choices are:

 

Any - this NAT rule supports all the destination ports.

 

Port - this NAT rule supports one destination port.

 

Ports - this NAT rule supports a range of destination ports. You might use a range of

 

destination ports for unknown services or when one server supports more than one

 

service.

 

 

Protocol Type

This field is available if Mapping Type is Port or Ports. Select the protocol (TCP,

 

UDP, or Any) used by the service requesting the connection.

 

 

Original Port

This field is available if Mapping Type is Port. Enter the original destination port this

 

NAT rule supports.

 

 

Mapped Port

This field is available if Mapping Type is Port. Enter the translated destination port if

 

this NAT rule forwards the packet.

 

 

Original Start Port

This field is available if Mapping Type is Ports. Enter the beginning of the range of

 

original destination ports this NAT rule supports.

 

 

Original End Port

This field is available if Mapping Type is Ports. Enter the end of the range of original

 

destination ports this NAT rule supports.

 

 

Mapped Start Port

This field is available if Mapping Type is Ports. Enter the beginning of the range of

 

translated destination ports if this NAT rule forwards the packet.

 

 

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ZyWALL 110/310/1100 Series User’s Guide