Aug 13

To find the proper MTU Size, you’ll have to do a special ping of the destination you’re trying to go to. A destination could be another computer, or a URL.

Step 1 Click on Start and then click Run.

Step 2 Windows NT, 2000, and XP users type in cmd and press Enter (or click OK).

Step 3 Once the window opens, you’ll need to do a special ping. Use the following syntax:

ping [url] [-f] [-l] [MTU value]

Example: ping yahoo.com -f -l 1472

dlink-mtu

You should start at 1472 and work your way down by 10 each time. Once you get a reply, go up by 2 until you get a fragmented packet. Take that value and add 28 to the value to account for the various TCP/IP headers. For example, lets say that 1452 was the proper value, the actual MTU size would be 1480, which is the optimum for the network we’re working with (1452+28=1480).

Once you find your MTU, you can now configure your router with the proper MTU size.

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Aug 03

The recent very hot weather, if your home router crashes occurred, or disconnection, you can try the following method.

1. Check the router’s fan and radiator, if broken, re-bar to buy a new router.

2. To place the router into the air circulation.

3. Reduce the surface temperature of the router, you can get some ice on the surrounding.

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Jul 23

In computer networks, a DMZ (demilitarized zone) is a computer host or small network inserted as a neutral zone between outside a private network and public network companies. It prevents outside users get direct access to a server, enterprise data. (The term comes from the geographic buffer zone between North Korea and South Korea after the action of the United Nations police in the 1950s.) Is a DMZ set up an optional and more secure approach to a server securely and effectively acts as a proxy server when.

In a typical configuration of a DMZ for a small company, a separate computer (or host in network terms) requests from users to access private network of web sites or other undertaking is open to the public. The DMZ host then initiates sessions for these requests on the public.
can, however, is the DMZ host does not log in to the private network. You can only packets that were requested.

The public network users outside the company can access the DMZ host. The DMZ usually include information on Web pages, so that it can be covered with the outside world. However, the zone does not allow access to data from another company. When an external user in the DMZ hosts security, Web pages can be damaged, but no information about the society of those suspended. D-Link, a leading manufacturer of routers, a company that sells products for the creation of a demilitarized zone.

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Jul 22

To host an FTP server behind a router D-Link, you must open port 20 (TCP) and 21 (TCP) in the router and point to the computer with the FTP server software. In addition, you can configure your FTP client to passive mode to use. Internet users should access the router’s WAN IP address to your FTP server software and configure your client in passive mode.

For the D-Link DI-514, DI-524, DI-604 (US only), DI-614+, DI-624, DI-704P(revC), DI-754, DI-764, DI-774, and DI-784:

Step 1: Open a web browser like Internet Explorer and enter the IP address of the router (192.168.0.1). Enter the name admin () and password blank ().

Step 2: Click Advanced, then Firewall.

Step 3: Create a rule in the firewall: Click Enabled.
Enter a name (ftp).
Click Allow.

Source of this page, select the WAN interface. In the first field, enter an *. Leave the second box empty.
Depending on the destination, choose the LAN interface. Enter the IP address of the computer on the FTP server. Leave the second box empty.

Under the Protocol, select TCP. In the beach areas of Port, type 20 in the first zone and 21 in the second box.

dlink-ftpserver

Step 4: Click Apply and then Continue to save settings.

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Jul 20

Some pepole using a D-Link Lan-switch such as D-Link DES-1228P,he can’t share Internet connection,If you are connecting directly to a Cable or DSL modem, you will need a router to share your Internet connection or a computer using ICS (Internet Connection Sharing) or Proxy. Switches and hubs do not allow you to share a single IP address to multiple computers.

Another alternative is to contact your ISP and purchase extra IP addresses for each additional computer.

Here for a list of D-Link Routers : http://www.dlink.com/solutionFlashes/?type=1&rid=64

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