ZTE ZXDSL531B Router Manual PDF (Setup & Configuration Guide)

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ADSL Router User Manual

48

Dial

On Demand

:

If checked, under disconnected status, if any client PC sends out request for connection, the

ADSL Router will dial the ISP automatically. In this case, if the system administrator wants

to disconnect the PPP session, just click the

Disconnect

button at Quick Start page.

Always On:

Enabling this feature will send echo request to ISP. This prevents the connection from being

hung up by ISP.

The parameters for PPPoE configuration are generally the same as those of PPPoA. The additional parameters are:

Service Name

:

Enter the name of your PPPoE service here.

Service Server

:

Enter the name of your PPPoE service server here.

Note:

When you initially add an PVC for the PPP connection and connect to ISP, a default

routing of

0.0.0.0

is added automatically to the IP Static Routing. If you set up more than

one PVC profiles and the first PVC is deleted, then you have to manually add the default

routing.

IP Route

This web page allows you to set the route for data transmission.

Static Route

This page shows all static route status and allows you to add new static IP route or delete IP route. A Static IP Routing

is a manually defined path, which determines the data transmitting route. If your local network is composed of

multiple subnets, you may want to specify a routing path to the routing table.

You can click

Create a new route

to add new route.

Destination Address

:

The destination IP address of the network where data packets are to be sent.

Netmask

:

The subnet mask of the destination IP address.

Forward packets to

:

If you want add a rout on LAN side, you should choose the

Gateway Address

. Enter the

router address and then click

Apply

. If you want add a rout on WAN side, you should choose

the

Interface

. Select ATM PVC interface and then click

Apply

.

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Chapter 5: Web Configuration

49

Dynamic Routing

Routing Information Protocol (RIP) is utilized as a means of exchanging routing information between routers. It

helps the routers to determine optimal routes. This page allows you to enable/disable this function.

By default, RIP is disabled with

Disabled

selected. You are allowed to enable RIP over the primary LAN interface.

Upon each interface, you can customize the RIP on

Receive Mode

and

Transmit Mode

respectively.

Interface Name:

It decides the interface of the network that you want to use.

Receive Mode

:

It incorporates the RIP information when receiving the RIP packets. From the drop-down list

select which RIP version should be accepted, RIP disable, RIPv1, RIPv2 and both.

Transmit Mode

:

It broadcasts the routing table. From the drop-down list select which RIP version should be

broadcasted, RIP disable, RIPv1, RIPv2 and both.

DNS

DNS Relay

On this page you can choose to disable or enable DNS Relay function. If your DNS is disabled and you choose to

enable DNS relay, after selecting the

Enabled

option, please click

Configure

and then specify up to three DNS IP

addresses in the

DNS server 1-3 IP address

fields. Then click

Apply

to enable the DNS relay function.

While the ADSL supports DNS Relay, it is regarded as a DNS server that is responsible for forwarding the name

address inquiry for the host. On the Router mode, the manager must type in the DNS server address of the ISP

manually. For example, if you are the first time to log in DNS Relay page, when you choose Enabled and enter this

page by clicking

Configure

, the page will show

DNS server 1-3 IP address

fields. Enter the addresses and click

Apply

.

Yet, on MER, PPPoA or PPPoE mode, ADSL will get the DNS server address automatically from ISP. The manager

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ADSL Router User Manual

50

does not need to type in the DNS server address. Simply click Enabled item on DNS Relay settings and leave the

address entry lines blank. Finally, click Apply. DNS Relay will be invoked.

If you have been setting before, the page will show all the DNS Relay status. To disable DNS relay, just select the

Disabled

option then click

Configure.

To

modify setting select enable and click

Configure

again.

DNS Server

The DNS server address will be passed to the DHCP clients along with the IP address and the DHCP clients use the

DNS to map a domain name to its corresponding IP address and vice versa.

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Chapter 5: Web Configuration

51

DNS Server:

Select

Enabled

or

Disabled

to enable/disable the DNS server and then click

Apply

.

The DNS hostname table shows all the current DNS clients, whether created by DHCP client

or manually created. If it created by manual client, you can delete the hostname entry on the

table.

Create New DNS Hostname Entry:

To add new hostname entry, please click

Create a new DNS hostname entry

manually

button. Then fill in the

Hostname

and

IP address

and click

Apply

.

Delete Hostname Entry:

To delete the hostname entry, select the required one from the DNS hostname table. After

confirming the data, click

Delete

.

Note:

1. When DNS Relay is disabled, the DNS server function is invalid.

2. If DNS IP is left as 0.0.0.0, then you should specify the DNS on each client PC.

Security

Firewall

This page is used to set the firewall for your system. Please choose one from the provided items and click Apply to

enable it.

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ADSL Router User Manual

52

Click on

The table of default policies for various security levels

to see the traffic blocked status for each setting.

The higher the security level is, the more traffic blocked for the service is.

When the firewall is disabled, it will be OK for accessing in/out Internet, and the router will support PPTP packet and

IP Sec Packet for passing through. Yet, when the firewall is enabled with choosing Low, Medium or High, your

system will follow the rule listed on the table of default policies for managing the access in/out Internet to forward

packet. If you found some software cannot work properly while enabling firewall, but can work while disabling

firewall, you have to select Advance (User define) to configure the policies manually by setting mapping protocol

(TCP, UDP) and port number. And set the Direction in Bound as

Allow

or

Block

, out Bound as

Allow

.

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