ヘルプ - 特殊な設定

ヘルプ目次

インターネット タイムサーバー
IPアドレス インターネット タイムサーバーのIPアドレスを入力してください。 Servers will be contacted in the order entered, until 1 responds.

ファイアウォール
Override
built-in settings
  • Enable this to if you wish to change the firewall settings below.
  • If not Enabled, the following firewall settings have no effect.
Global Limit
- Maximum Incomplete Sessions
These limits refer to the total number of "half-open" connections allowed, on all LAN devices. A "half-open" connection arises when a remote client contacts the Server with a connection request, but then does not reply to the Server's response.
  • High Water Mark - If the number of "half-open" connections reaches this limit, existing "half-open" connections will be terminated to allow for new incoming requests. Terminations will continue until the number of "half-open" connections reaches the Low Water Mark below.
    Valid entries are from 1 to 255.
    This number should be increased if you have a fast network & servers, and high bandwidth. Reduce these numbers if your LAN or Servers are slow, or bandwidth is limited.
  • Low Water Mark - After "half-open" terminations are triggered by the "High Water Mark" above, terminations will continue until the number of "half-open" connections is reduced to this value.
    Valid entries are from 1 to 255.
    This number should be between 50% to 80% of the the "High Water" mark.
Limit per IP Address This refers to the total number of "half-open" connections allowed for a single IP Address. A "half-open" connection arises when a remote client contacts the Server with a connection request, but then does not reply to the Server's response.
  • Maximum Incomplete Sessions Allowed - If the number of existing "half-open" sessions for a single device reaches this limit, the firewall will start terminating half-open sessions to that IP address. The teminating behavior is determined by the following "Block" setting.
    Valid entries are from 1 to 99.
  • Block for x minutes - This checkbox determines if the next request (after reaching the limit above) should be allowed or blocked.

    If Enabled, ALL half-open connections will be terminated when the limit is reached. In addition, if a time is specified in the block time field, ALL incoming connections will be refused. This gives the Server time to deal with any established connections.

    If Disabled, the oldest "half-open" connection is terminated each time a new request is received.

  • Block time - If Block is Enabled, and the block time is not zero, then ALL connection attempts will be refused for the specified amount of time, once the number of "half-open" sessions exceeds the Maximum Incomplete Sessions Allowed.
    Valid entries are from 0 to 99.

MACアドレス
MAC (physical)
アドレス

Overview:

  • This address is a low-level network identifier for this device. It may be called "MAC Address", "Hardware Address", or "Physical Address". On a PC, this address is associated with the Network card or adapter.
  • The address here in on the WAN (Internet) port, and has no effect on the LAN interface.
  • If your ISP asks for the Network Adapter Address, Physical Address, Hardware Address, or MAC Address for the PC the DSL/Cable modem is connected to, provide this value.
  • If your ISP has already recorded a MAC address, you can change the address used by the Broadband Router to match the address recorded by your ISP.
  • If the address is changed, the Broadband Router must restart.

MACアドレスの変更:

  • Click the "Default" button to insert the default MAC address into the address field. You must click "Save" to actually change the address used.
  • Click the "Copy from PC" button to copy the MAC address from your PC (actually, the network adapter on your PC) to the address field. You must click "Save" to actually change the address used.
  • If your ISP has recorded a Hardware Address, you can "spoof" that address by entering it in the address field. The hardware address consists of 12 characters, where each character is a digit (0..9) or a character between A and F.

ボタン
Retrieve
Defaults
This is will retrieve and display the default values for the settings on this screen.
You must click "Save" to actually restore the displayed values.
保存 Save any changes you have made.
キャンセル The "Cancel" button will discard any data you have entered since the last "Save" operation.