Lease Time

The DHCP when enabled will temporarily give

 

your LAN clients an IP address. In the Lease

 

Time setting you can specify the time period that

 

the DHCP lends an IP address to your LAN

 

clients. The DHCP will change your LAN client’s

 

IP address when this time threshold period is

 

reached

DNS Proxy

Select <Enabled> that all DNS requests to a

 

specific Domain Name will be routed to the XRT-

 

401E’s IP address. If you want to use the DNS

 

Proxy function of the device, the end user’s main

 

DNS server IP address should be the same IP

 

Address as the device.

DHCP Client List

You can check your current status of the DHCP

 

client here, it also allow you to add the client IP

 

address with specific MAC address manually.

 

 

3.4 NAT

Network Address Translation (NAT) allows multiple users at your local site to access the Internet through a single Public IP Address or multiple Public IP Addresses. NAT provides Firewall protection from hacker attacks and has the flexibility to allow you to map Private IP Addresses to Public IP Addresses for key services such as Websites and FTP. To meet various field applications, XRT-401E NAT function can be disabled to as a regular router. If NAT is disabled, all LAN side workstations must have valid IP addresses for Internet access. If the router is used for routing application, not for Internet access, then the NAT function can be disabled.

Parameter

Description

3.4.1 Virtual Server

You can have different services (e.g. email, FTP, Web

 

etc.) going to different service servers/clients in your

 

LAN. The Virtual Server allows you to re-direct a

 

particular service port number (from the Internet/WAN

 

Port) to a particular LAN IP address and its service port

 

number.

3.4.2 Special Applications

Some applications require multiple connections, such as

 

Internet games, video conferencing, Internet telephony

 

and others. In this section you can configure the router

 

to support these types of applications.

3.4.3 Port Forwarding

You can have different services (e.g. email, FTP, Web

 

etc.) going to different service servers/clients in your

 

LAN. The Port Forwarding allows you to re-direct a

 

particular range of service port numbers (from the

 

Internet/WAN Ports) to a particular LAN IP address.

3.4.4 ALG Setting

You can select special applications that need

 

“Application Layer Gateway” to support here.

 

 

 

 

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