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Nlynx Wireless Gateway manual NetBIOS over TCP/IP Filter, Block WAN Request, Save/Cancel

Models: Wireless Gateway

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The Protocols Filter control lets you list the TCP port numbers for up to sixteen protocols that you do not want LAN users to use over the WAN connection. A list of standard, commonly used TCP port numbers appears next to the table to help you create entries. To create an entry, simply click in a TCP Port # box and type a port number.

NetBIOS over TCP/IP Filter

NetBIOS is a communication protocol designed for use on small networks and heavily reliant on network-wide broadcasts. “NetBIOS over TCP/IP” (often abbreviated as NBT) is a means of letting NetBIOS requests travel between networks in TCP/IP packets. This method is used in Windows 95 and Windows NT.

Since NetBIOS over TCP/IP can be routed between networks, it can trigger dial-out on a dial-on-demand PPPoE WAN connection (see “Global WAN Mode” under “Basic Setup — Broadband Router,” above). If you have a PPPoE link to your ISP, and the Connect on Demand control is set to Yes, you will almost certainly need to enable the NetBIOS over TCP/IP filter. When the filter is enabled, NetBIOS over TCP/IP packets will not trigger dialing and will not be passed from the LAN to the WAN link. (NetBIOS over TCP/IP will still work among the machines on the LAN.)

If the Wireless Gateway's WAN port connects a LAN to a corporate network containing resources that local machines must access using NetBIOS over TCP/IP, the NetBIOS over TCP/IP Filter control should be set to Disable to let those packets through.

Block WAN Request

The Block WAN Request function, if enabled, causes the Wireless Gateway to ignore requests addressed to it from the WAN. This makes the Wireless Gateway almost “invisible” to the outside world while still allowing access to the WAN from the LAN.

Note that if the Block WAN Request function is enabled, outside machines will not be able to “ping” the Wireless Gateway and remote management of the Wireless Gateway will not be possible.

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Nlynx Wireless Gateway manual NetBIOS over TCP/IP Filter, Block WAN Request, Save/Cancel

Contents

Wireless Gateway Users GuideRev. 01 Oct CE Mark Warning FCC WarningBasic Setup Table of ContentsFeatures 3. Web ConfigurationInstallation 4. AppendixReset Factory ResetIntroduction Features∙ LAN-to-WAN access control on basis of IP or MAC address or both ∙ Configurable as a DHCP Dynamic Host Configuration Protocol server∙ Configurable for NAT or router mode ∙ Configurable for dynamic routing on LAN and/or WANBack Panel External ComponentsFront Panel Faulty LPT LEDComponent Web Configuration Note If the operating system or the browser is set to use an HTTP proxy server, either turn off the setting or put theWireless Gateways IP address in the list of unproxied hosts 4. Command the browser to access the following URL∙ Broadband Router ∙ Wireless AP ∙ Print Server ∙ Admin Password Basic SetupBasic Setup - Broadband Router Router NameLocal LAN Global WAN Mode DNS IP Addresses WAN Port MAC Save/CancelBasic Setup - Wireless AP Wireless ChannelESS-ID Tx Bit Rate If the Wireless Gateway is the only AP on your LAN, it does not matter which channel you set the unit to use properly configured 802.11b wireless stations will find the correct channel automaticallySave/Cancel AppleTalk Basic Setup - Print ServerPrint Port TCP/IPSave/Cancel Machines running the Macintosh OS on your LAN can print on a PostScript printer attached to the Wireless Gateway. When such machines request information about network printers using the AppleTalk protocol, the Wireless Gateway will respond with the information shown in the Print Server panel. This information must be correct for successful printingBasic Setup - Admin Password Advanced Settings Advanced Settings - DHCP Server Address Range EnableReserve Table Lease Timetwelve hexadecimal digits with or without spaces in between. The hexadecimal digits are 0 through 9 and A through F in upper or lower case 0080C82F8086, 0080c82f8086, 0080C8 2F8086, and 00 80 C8 2F 80 86 are all different ways of writing the same MAC address Save/CancelAdvanced Settings - Port Forwarding TCP Port to IP Forwarding DMZ Host A DMZ host is a machine exposed to the Internet and running software designed to provide specific services while protecting the LANs other machines from direct access from outside. On the Wireless Gateway, if an IP address for a DMZ host is specified, incoming packets of types not listed in the TCP Port to IP Forwarding table will be directed to the DMZ hostSave/Cancel Enable Advanced Settings - Port OpenGo to ApplicationDefine Port Open List to specify a range, click the range, and then click in the Static Routing Advanced Settings - RoutingDynamic Routing NAT/Router Mode The LAN Interface settings control whether and how the Wireless Gateway uses RIP with any routing devices networked to it through its LAN portsSave/Cancel Page Advanced Settings - Filters Protocols Filter Users FilterThe Protocols Filter control lets you list the TCP port numbers for up to sixteen protocols that you do not want LAN users to use over the WAN connection. A list of standard, commonly used TCP port numbers appears next to the table to help you create entries. To create an entry, simply click in a TCP Port # box and type a port number NetBIOS over TCP/IP FilterBlock WAN Request Save/CancelPage Advanced Settings - Manager Console Log and Filter Manager ConsoleSchedule Connection Save/Cancel ∙ Manual Connect means to connect only on command from the managerDefine User List Advanced Settings - Wireless AccessAccess Control Enable/Disable Advanced Settings - Wireless EncryptionEncrypt Data Transmissions Using Input FormatKey 1 through Key Save/Cancel This control determines which key the Wireless Gateway will use when WEP encryption is enabled. Click the list box to open it, and then drag to or click the name of the desired keyAdvanced Settings - Wireless Bridge Broadcast/Multicast Filter Protocol FiltersPage or 00 80 C8 2F 80 86. To list a station, find its MAC address, click in a MAC Address box, and type the address, with or without spaces Save/CancelInformation Information - Device Information - DHCP Information - Routing Information - Users Information - Connections Information - WAN Link Information - Printer Status Information - Wireless Stations Information - Wireless Tallies Page Tools Tools - ResetTools - Factory Reset Tools - Print TestTools - PPPoE Connect and PPPoE Disconnect Page and the version of the Wireless Gateway HelpInstallation AppendixDevice Utility Using Device Utility Changing IP Address Firmware UpgradeNetwork Protocols Supported Operating Temperature 0 to 50C Storage Temperature -25 to 55CSpecifications External Connection