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16

Figure 4-4

¾

Host Name

-

Enter the host name.

¾

MTU Size

-

The normal MTU (Maximum Transmission Unit) value for most Ethernet

networks is 1500 Bytes. For some ISPs you need to reduce the MTU. But this is

rarely required, and should not be done unless you are sure it is necessary for your

ISP connection.

¾

Primary DNS & Secondary DNS

-

If your ISP gives you one or two DNS addresses,

select

Use These DNS Servers

and enter the primary and secondary addresses

into the correct fields. Otherwise, the DNS servers will be assigned dynamically from

ISP.

)

Note:

If you get ‘Address not found' errors when you go to a Web site, it is likely that your DNS

servers are set up improperly. You should contact your ISP to get correct DNS server.

¾

Get IP with Unicast DHCP:

A few ISPs' DHCP servers do not support the

broadcast applications. If you cannot get the IP address normally, you can choose

this option. (You don’t need select this option generally).

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2.

Static IP

If you are given a fixed IP (static IP), please select

Static IP

(shown in Figure 4-5), and

then fixed IP parameters specified by your ISP.

Figure 4-5

¾

IP Address

-

Enter the IP address in dotted-decimal notation provided by your ISP.

¾

Subnet Mask

-

Enter the subnet Mask in dotted-decimal notation provided by your

ISP, usually is 255.255.255.0.

¾

Default Gateway

-

Enter the gateway IP address in dotted-decimal notation

provided by your ISP (Optional).

¾

MTU Size -

The normal MTU (Maximum Transmission Unit) value for most

Ethernet networks is 1500 Bytes. For some ISPs you may need to modify the MTU.

But this is rarely required, and should not be done unless you are sure it is

necessary for your ISP connection.

¾

Primary DNS -

Type the DNS address in dotted-decimal notation provided by your

ISP (Optional).

¾

Secondary DNS -

Type another DNS address in dotted-decimal notation provided

by your ISP if provided (Optional).

3.

PPPoE

If you are given a user name and a password, please select

PPPoE

(shown in Figure

4-6). If you are not sure which connection type you use currently, please contact your ISP

to obtain the correct information.

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Figure 4-6

¾

User Name/Password -

Enter the User Name and Password provided by your ISP.

These fields are case-sensitive.

¾

Connect on Demand -

You can configure the router to disconnect your Internet

connection after a specified period of inactivity (

Max Idle Time

). If your Internet

connection has been terminated due to inactivity,

Connect on Demand

enables the

router to automatically re-establish your connection as soon as you attempt to

access the Internet again. If you wish to activate

Connect on Demand

, click the

radio button.

)

Note:

1)

If you want your Internet connection to remain active at all times, enter 0 in the

Max

Idle Time

field. Otherwise, enter the number of minutes you want to have elapsed

before your Internet connection terminates.

2)

Sometimes the connection can not be disconnected although you specify a time to

Max Idle Time. This is because there may still be active applications in the

background, which may cause fee accounted by your ISP.

¾

Connect Automatically -

Connect automatically after the router is disconnected. To

use this option, click the radio button.

¾

Time-based Connecting -

You can configure the router to make it connect or

disconnect based on time. Enter the start time in HH:MM for connecting and end

time in HH:MM for disconnecting in the

Period of Time

fields.

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)

Note:

Only you have set the system time on

System Tools

→

Time

screen, will the

Time-based

Connecting

function take effect.

¾

Connect Manually -

You can configure the router to make it connect or disconnect

manually. After a specified period of inactivity (

Max Idle Time

), the router will

disconnect your Internet connection, and not be able to re-establish your connection

automatically even though you attempt to access the Internet again. You need click

the

Connect

button manually to connect immediately, or click the

Disconnect

button manually to disconnect immediately; To use this option, click the radio button.

If you want your Internet connection to remain active at all times, enter 0 in the

Max

Idle Time

field. Otherwise, enter the number in minutes that you wish to have the

Internet connecting last unless a new link is requested.

)

Note:

1)

If you want your Internet connection to remain active at all times, enter 0 in the

Max

Idle Time

field. Otherwise, enter the number in minutes that you wish to have the

Internet connecting last unless a new link is requested.

2)

Sometimes the connection cannot be disconnected although you specify a time to

Max Idle Time. This is because there may still be active applications in the

background, which may cause fee accounted by your ISP.

Click the

Advanced

button to set up the advanced option as shown in Figure 4-7.

Figure 4-7

¾

MTU Size-

The default MTU size is 1480 bytes, which is usually fine. For some ISPs,

you need modify the MTU. This should not be done unless you are sure it is

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necessary for your ISP.

¾

Service Name/AC Name -

The service name and AC (Access Concentrator) name

should not be configured unless you are sure it is necessary for your ISP.

¾

ISP Specified IP Address -

If you know that your ISP does not automatically

transmit your IP address to the router during login, select

Use IP Address specified

by ISP

and enter the IP in dotted-decimal notation, which your ISP provided.

¾

Detect Online Interval -

The default value is 0, you can input the value between 0

and 120. The router will detect Access Concentrator online at every interval between

the time. If the value is 0,

it

means the Router does not detect.

¾

Primary DNS & Secondary DNS -

If you know that your ISP does not automatically

transmit DNS addresses to the router during login, select

Use the following DNS

servers

and enter the address in dotted-decimal notation of your ISP’s primary DNS

server. If a secondary DNS server address is available, enter it as well.

4.

802.1X + Dynamic IP

If you are provided

802.1x + Dynamic IP

for ISP connection, you should select

“

802.1x + Dynamic IP

” and enter the user name and password provided by ISP

(shown in Figure 4-8).

Figure 4-8