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15

enter the LAN IP addresses in the field, then the WAN port will only transmit the traffic whose

destination IP address are contained in the field.

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 can not get the IP address normally, you can choose this option. (You

don’t need select this option generally).

¾

Ingress Bandwidth:

Enter the bandwidth for ingress traffic.

¾

Egress Bandwidth:

Enter the bandwidth for egress traffic.

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.

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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).

¾

Ingress Bandwidth:

Enter the bandwidth for ingress traffic.

¾

Egress Bandwidth:

Enter the bandwidth for egress traffic.

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

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17

correct information.

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

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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.

)

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.

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Figure 4-7

¾

MTU Size-

The default MTU size is 1492 bytes, which is usually fine. For some ISPs, you

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

address 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.

¾

Ingress Bandwidth:

Enter the bandwidth for download traffic.

¾

Egress Bandwidth:

Enter the bandwidth for upload traffic.