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C
HAPTER
8: A
DVANCED
C
ONFIGURATION
F
EATURES
NAT/PAT
Configuration
The NAT/PAT Configuration page lets you configure the address
translation settings for your configured WAN interfaces. Address
translation enables workstations with private, non-registered IP addresses
on a LAN to access devices on the public network such as the Internet.
Address translation changes a private address to a public address at the
gateway of a public network.The OfficeConnect Gateway supports two
types of address translation:
■
Network Address Translation (NAT)
With Network Address Translation (NAT), a pool of public addresses
are configured and are statically or dynamically mapped to private
workstation addresses when accesses are made through the gateway
to a public network. The public to private address mapping remains
active until the privately addressed workstation stops accessing the
public network.
■
Port Address Translation (PAT)
Port Address Translation (PAT) is the most commonly used type of
Address Translation. It maps many private addresses on the local LAN
to one public address. The public address is the WAN interface
address, which can be dynamically learned or statically configured.
The OfficeConnect Gateway supports NAT and PAT for Class C networks
only.
Using NetMeeting:
This section describes how to configure the use of NAT with Microsoft
®
NetMeeting.
If static NAT Mapping is being used, incoming traffic to the public address
of the static NAT policy will go to the private address in the policy. If the
private address in the policy is not who the incoming NetMeeting call is
intended for, then it will not work.
If there is no static NAT policy and a default workstation is set, then
unknown incoming traffic will go to the default workstation. If the
incoming NetMeeting call is not intended for the default workstation,
then it will not work.
The following example describes a scenario on how to set up an
incoming NetMeeting call correctly:
Содержание OCG VOICE EXPANSION -
Страница 1: ...http www 3com com OfficeConnect Gateway Users Guide Release 1 0 Part No 10042307 Rev AA ...
Страница 44: ...3 10 CHAPTER 3 USING THE OFFICECONNECT GATEWAY ...
Страница 52: ...4 8 CHAPTER 4 ADMINISTRATION ...
Страница 58: ...5 6 CHAPTER 5 LAN CONFIGURATION ...
Страница 126: ...9 12 CHAPTER 9 MANAGEMENT FEATURES ...
Страница 132: ...10 6 CHAPTER 10 STATISTICS ...
Страница 154: ...12 12 CHAPTER 12 TROUBLESHOOTING ...
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