ZyXEL Communications ZyWall USG 2000 User Manual page 340

Chapter 21 IPSec VPN
Table 106 VPN > IPSec VPN > VPN Connection > Edit (continued)
LABEL
SNAT
Inbound Traffic
Source NAT
Source
Destination
SNAT
Destination
NAT
#
Original IP
Mapped IP
Protocol
Original Port
Mapped Port
340
DESCRIPTION
Select the address object that represents the translated source
address (or select Create Object to configure a new one). This is the
address object for the local network. The size of the original source
address range (Source) must be equal to the size of the translated
source address range (SNAT).
This translation hides the source address of computers in the remote
network.
Select the address object that represents the original source address
(or select Create Object to configure a new one). This is the address
object for the remote network. The size of the original source address
range (Source) must be equal to the size of the translated source
address range (SNAT).
Select the address object that represents the original destination
address (or select Create Object to configure a new one). This is the
address object for the local network.
Select the address object that represents the translated source
address (or select Create Object to configure a new one). This is the
address that hides the original source address. The size of the original
source address range (Source) must be equal to the size of the
translated source address range (SNAT).
This translation forwards packets (for example, mail) from the
remote network to a specific computer (for example, the mail server)
in the local network.
This field is a sequential value, and it is not associated with a specific
NAT record. However, the order of records is the sequence in which
conditions are checked and executed.
Select the address object that represents the original destination
address. This is the address object for the remote network.
Select the address object that represents the desired destination
address. For example, this is the address object for the mail server.
Select the protocol required to use this translation. Choices are: TCP,
UDP, or All.
These fields are available if the protocol is TCP or UDP. Enter the
original destination port or range of original destination ports. The
size of the original port range must be the same size as the size of
the mapped port range.
These fields are available if the protocol is TCP or UDP. Enter the
translated destination port or range of translated destination ports.
The size of the original port range must be the same size as the size
of the mapped port range.
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