Edimax BR-6624 manual

Load Balancing Router User’s Guide[...]

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i T ABLE OF C ONTENTS 1: INTR ODUCTION ............ ............. .............. ............. ............. .............. ............. ............. ....... ............ .... 1 Internet Fe atures ........ ........... ............. ............. .............. .......... .............. ............. ............. . ..... ......... 1 Other Feat ur[...]

ii 9: OPERA TION AN D STATUS ......... ............. .............. ............. ............. .............. .......... .............. ... .... 63 Operation ................ ............. ............. .............. ............. ........... ............. ............. ............ ....... .......... 6 3 System Sta tus ................ .........[...]

Page 1 1: Introduction Congratulations on the purchase of your new Load Balancer. The L oad Balancer p rovides Shared Broadband Internet Access for all LAN users. Figure 1- 1: Load Balancer Internet Features • Shared Broadband Internet Access All LAN users can access the Interne t through the Load Balancer, by sharing one (1) or two (2) Broadband[...]

Page 2 • Multiple IP Address Support If your ISP allocates you multiple IP a ddresses, thes e are also supported and you can “map” IP addresses to indiv idual PCs if desired. • Special Applications This feature allows you to use some non-standard applications , where the port number used for the response is di fferent to the port number use[...]

Page 3 Other Features • 4-Port Switching Hub The Load Balancer incorporates a 4-port 10 /100 BaseT switching hub, maki ng it easy to create or extend your LAN. • DHCP Server Support D yna mi c H ost C onfiguration P rotoc ol provides a dynamic IP ad dress to PCs and o ther devices upon request. The Load Balanc er can act as a DHCP Server for de[...]

Page 4 Package Contents The following items should be included: • The Load Balancer Unit • Power Adapt er • Quick Installation Guide • CD -ROM containing the on-line man ual. If any of the abov e items are damaged or missing, please contact your dealer immed iately. Physical Details Front Pa nel Operation of the Fron t Panel LEDs is as foll[...]

Page 5 Also, some Status and Error conditio ns are indicated by combinations of LEDs, as shown below LED Action Condition WAN1 LINK/ACT & 10M/100M L EDs flash altern atively. Firmware Download in progress. WAN1 LINK/ACT & 10M/100M L EDs flash concurre ntly. MAC address not ass igned. WAN1 LINK/ACT & 10M/100M L E Ds solid On SDRAM error [...]

Page 6 Rear Panel Figure 1-2: Rear P anel DC 5V Connect the supplied power adapter here. WAN 2 Connect the 2 nd Broadband Mode m here, if av ailable. Reset Button When pressed and released, The Load Balancer will reboot (restart) within 1 second. It resets to de fault over 3 sec onds. LAN Ports Connect the PCs to thes e ports. Both 10BaseT and 100B[...]

Page 7 Figure 1-3: Windows TFTP utility • Enter the name of the firmware upgrade file on your PC, or click the "Bro wse" button to locate the file. • Enter the LAN IP address of The Load Balancer in the "Server IP" field. • Click "Dow nload" to send the file to The Load Balancer. 3. When downloading is finished. [...]

Page 8 2: Basic Setup Overview Basic Setup of your Load Bala ncer involves the follow ing steps: 1. Attach The L oad Balancer to one (1 ) PC, and configure i t for your LAN. 2. Install your Load Balancer in your LAN, and con nect the Broadband Mod em or Modems. 3. Configure your Load Balancer for Internet Access . 4. Configure PCs on your LAN to us[...]

Page 9 • You can and should set a password, using the following Admin Password screen. No Response ? • Is your PC us ing a Fixed IP address ? If so, you must configure your PC to use an IP address within the range 192.168.1 .2 to 192.168.1.254, with a Networ k Mask of 2 55.255. 255.0. See Appendix B – W indows TCP/IP Setup for deta ils. • C[...]

Page 10 9. Select LAN & DHCP from the menu. You will see a screen like the exa mple below. Figure 2-3: LAN & DHCP 10. Ensure these settings are suitable for your LAN: • The default s ettings are suitable for man y situations. • See the following table for details of each settin g. 11. Save y our dat a, then go t o Step 2, Ins talling Th[...]

Page 11 • DHCP Server Setup - If you are already using a DHCP Server, the DHCP Server setting must be Disabled , and the existing DHCP server must be set to pro vide the IP addre ss of The Load Balancer as the Default G ateway . • Client Lease Time – It is a finite per iod of time for a DHCP server le ase an IP address to a client.. • Clien[...]

Page 12 2. Installing The Load Balancer in your LAN Figure 2- 4: Installati on Diagra m 1. Ensure The Load Balancer and the DSL/Cable modem are powered OFF. Leave the modem or mo dems connected to their data line. 2. Connect the Broadband modem or mo dems to The Load Balancer. • If usin g only one (1) Bro adband modem, connect it to the "W A[...]

Page 13 • For each PC connected to the LAN ports, the corre sponding LAN LED (either 10 or 100 ) should be ON. 3. Configuring The Load Bala ncer for Internet Access Select Primary Setup from the menu, to see a s creen like the example below. • Configure WAN 1 and/or WAN 2 as required. • For any of the following situations, refer to Chapter 3:[...]

Page 14 Settings – Primary Setup Connection Mode Select the appropriate setting: • Enable – Select this if you have connected a bro adband modem to this port. • Dis able – Select this if there is no br oadband modem connected to this port. • Backup – Use this if you have a broadband mode m on each port, and wish to normally use onl y [...]

Page 15 Optional • Host nam e – This is required by so me ISPs. If your ISP provided a Host Name, enter i t here. Otherwise, you can use the default value. • Doma in na me – This is requ ired by s ome ISPs. If your ISP pro vided a Domain Name, enter it here. Otherwise, you can us e the default value. • MAC addre ss – Some ISP's rec[...]

Page 16 4: Configure PCs on y our LAN Overvi ew For each PC, the following may nee d to be configu red: • TCP/IP network setting s • Internet Access c onfiguration TCP/IP Settings If using the defau lt Load Balancer settings, a nd the default Windows 9 5/98/ME/ 2000/X P TCP/IP settings, no changes need to be made. Just start (or restart) you r [...]

Page 17 7. Select "Set up my connection manual ly" and click “ Next” . 8. Check "Connect using a broadban d connection that is always on" and click Next . 9. Clic k Finish to close the New Connection Wizard. Setup is now completed. Accessing AOL To access AOL (A merica On Line) through The Load Balancer, the A OL for Windows[...]

Page 18 • Set your De fault Gatewa y to the IP A ddress of The Load Balancer. • Ensure your DNS (Name server) settings are correct. To act as a DHCP Client (recommended) The procedure below may vary according to yo ur version of Linux and X -windows shell. 1. Start your X Windows client. 2. Select Control Panel - Network 3. Select t he "In[...]

Page 19 3: Advanced Port Setup Overview • Port Options contains s ome options, w hich can be set on either o r both WAN ports. For most situations, the default values are satisfactor y. • Load Balance screen is onl y functional if you ar e using both WAN ports. It allows you to determine the proportion o f WAN traffic sen t through each port. ?[...]

Page 20 Settings – Port Options Connection Validation • Health Check – Disable w ill not do Alive Indicator Chec k. By default health check is enab le. Health checking is performing an ICMP echo request and HTTP packets to the specific destination that could be either: 1. Name or IP Address user specified in the “Alive Indicator” input bo[...]

Page 21 Load Balance This screen is only operationa l if using Internet connec tions on both WAN ports. Figure 3- 2: Load Balance These settings are onl y functional if using both WAN ports. If using both WAN ports, thes e settings determine the proportion of traffic se nt over each port.[...]

Page 22 Settings – Load Balance Load Balance Configuration • Enable – Use this to enable your Load Balanc e settings. Unless this is checked, the o ther settings on this screen have no e ffect. • Balance Type – Sele ct the desired option: • Bytes rx+tx – Traffic is measured by Bytes. • Pac kets rx+tx – Traffic is measured by Pac k[...]

Page 23 Advanced PPPoE The screen is required in order to use multiple PPPoE sessio ns on the same WAN p ort. It can also be used to manu ally connect or disconnect a P PPoE session. Figure 4: Advanced PPPoE Settings – Advanced PPPoE WAN Port PPPoE Session Select the desired Port and Session, then click the "Select" b utton. The data fo[...]

Page 24 Advanced PPTP This screen is only usefu l if using the PPTP connec tion method. Figure 5: Advanced PPTP Settings – Advanced PPT P WAN Port Select the desired Port, then click the "Select" b utton. The data for the selected Port will then be disp layed in the WAN IP Account section. WAN IP Account • User Name – The PPT P user[...]

Page 25 4: Advanced Configuration Overview The following advanced features are provided. • Host IP Se tup • Virtual Servers • Custom Virtual Serve r • Special Applications • Dyn amic DNS • Multi DMZ • Advanced Features • UPnP This chapter contains details of the configuration and use of eac h of these fea tures. Host IP Setup This f[...]

Page 26 Figure 4-1: Host IP Setup Settings – Host IP Setup Host Network Identity This section identifies each Host ( PC) • Host List – When adding a new Host, ignore this list. To edit an existing entry, select it from t he list, and click the "Select " button. The data fiel ds will then be updated with data for the selected en try.[...]

Page 27 Host Network Binding • Bind WAN port/Session – Select Enable if you wish to associate this PC with a particular PPPoE Session. All traffic f or that PC will then use the selected PPPoE port and session. • Binding Method – Suppose your PC is bound to WAN1 port, now you are selecting “Strict Binding”. If WAN1 port is disconnected,[...]

Page 28 Virtual Servers This feature allo ws you to make Servers on your LAN accessible to Internet users. Normally, Inte rnet users would not be able to access a server on your LAN beca use: • Your Server's IP addres s is only valid on your L AN, not on the Internet. • Attempts to c onnect to dev ices on your LAN are bloc ked by the firew[...]

Page 29 Figure 4- 3: Virtual Serve r Settings – Virtu al Server Enable Use this to Enable or Disa ble each Virtual server as required. Serv er Ty pe Select the desired Server type. If the type of Server you wish to use is not listed, use the Cus tom Virtual Server screen to defin e your own type. LAN IP Address Enter the IP address of the PC on y[...]

Page 30 Custom Virtual Servers This screen allows you to define your own Serve r types, for situations w hen the desired Server type is not listed on the Vi rtua l Serv ers screen. Figure 4-4: Custom Virtual Servers Settings – Custom Virtual Servers Select Custom Server Name Server List If creating a new entry, ignore this list. To edit an existi[...]

Page 31 • Protocol Type – Select the ne twork protocol used by this sever type. • LAN Port Range – Enter the range of port number used for outgoing traffic from this Server. If only a single port is required, enter it in both fields . • WAN Port Range - – En ter the range o f port number used for incoming traffic to this Server. If onl [...]

Page 32 Special Applications If you use Interne t applications which have non-stand ard connections or port numbers, you may find that they do not function correctl y because they are blocked by the firewall in The Load Ba lancer. In this case, you can de fine the application as a "Sp ecial Application" in order to make it work. Note that[...]

Page 33 Outgoing Port Range Enter the beginning and en d of the range of port nu mbers used by the application server, for data you send . If the application uses a single port number, enter it in both fields. Incoming Protocol Select the protocol used by this application, when receiving data from the remote s erver or PC. Incoming Po rt Range Ente[...]

Page 34 Dynamic DNS Dynamic DNS is very useful when combined with the Virtual Server feature. It allo ws Internet users to connect to your Virtual Servers using a URL, rather than an IP Address. This also solv es the problem of having a dynami c IP address. With a dynamic IP addres s, your IP address may change whenever you conn ect to your ISP, wh[...]

Page 35 Settings – Dynamic DNS Dynamic DNS Service Use this to Enable/Disable the D ynamic DNS feature , and select the re quired service provider. • Disable – D ynamic DNS is not used. • TZO – Select this to use the TZO s erv ice (www.tzo.co m). You must con figure the TZO section of this screen. • Standard Client – Sele ct this to u[...]

Page 36 Multi D MZ This feature allo ws each WAN port IP addres s to be asso ciated with one (1) computer on your LAN. All outgoing traffic from that PC will be associate d wi th that WAN port IP address . Any traffic sent to that IP address will be forwarded to the sp ecified PC , allowing unrestricted 2 -way communication between the "DMZ PC[...]

Page 37 Settings – Multi DMZ Enable Use this to enable or dis able the DMZ setting, as re quired. Nam e Enter a name to assist you to remember this setting. This name has no effect on the operation. For Static IP Public IP address Enter the W AN port (Intern et) IP add ress you w ish to asso ciate to a PC. This IP address must have been allo cate[...]

Page 38 UPnP With UPNP (Universal Plug & Play) function, it ca n easily setu p and configure an entire ne twork, enable discovery and control o f network ed devices and services. Figure 4-8: UPnP Settings – UPnP UPnP Option If you Enable UPnP, then this two wan rou ter will become one o f the entire local network. You can fi nd out there is a[...]

Page 39 NAT NAT (Network Address Trans lation) is the tech nology which allows one (1) WAN (Interne t) IP address to b e used by man y LAN users. Figure 4-9: NAT[...]

Page 40 Settings – NAT NAT Configuration • NAT Routing – You can enable or disable NAT through the check box. If you disable NAT checkbox, it will act as a br idge or Static Router. Most features will be unavai lable. • TCP Timeout – Enter the desi red value to us e on both WAN port s. The default is 300. • UDP Timeout – Enter the des[...]

Page 41 Advanced Features This screen allows you to change so me advanced settings: • Remote Access C onfiguration – This fea ture allows you to manage The Load Ba lancer via the Internet. You can res trict access to a s pecified IP address or addre ss range. • External Filters Configuration – T hese settings determine whether or not The Lo[...]

Page 42 Settings – Advanced F eatures Remote Access Configuration • Remote Upgrade – If enabled, you can use the su pplied Windows program to remotely upgrade the Firmware. If not enabled, upgra des must be performed by a PC on the LAN. • Remote Web-based setup - – If enabled, access to the Web-based interface is available via the Interne[...]

Page 43 Inte rface Binding SMTP (Simple Mail Transport Protocol) Binding Unless you are us ing E-mail accounts from di fferent ISPs on each port, you can ignore these settings. Some ISPs configure their E-mail Server s so they will not accept E-mail from IP addresses not allocated b y themselves. If you are using acc ounts from different ISPs, send[...]

Page 44 5: Security Management Overview • URL Filter It can block specific or browse only certain website by con figure IP address, URL or Key words • Access filter You can b lock all Internet acc ess or select bloc k well-known port or block us er define ports by groups. • Session Limit It can el iminate users access Intern et, and send emai[...]

Page 45 Settings – URL Filter Access Group This allows you have different blocking rules for different Groups of PC s. • All PCs (users) are in the Default Group unless moved to another group on the Host IP screen. • If you want the same re strictions to apply to everyone, select Defaul t for th e Group. In this case, there is no need to ente[...]

Page 46 Access Filter The network Administra tor can use the Acce ss Filter to gain fin e control over the Internet access and applications available to LAN users. • Five (5) user groups are available, and each group can have different access rights. • All PCs (users) are in th e Default group, unless assigned to another gro up on the Host I P [...]

Page 47 Block Well-known ports Select the serv ices you wish to bloc k. The current group will not be able to use any service s which are checked. User-defined Ports to Block This section is optional. It allows you to de fine your own filters if required. For each filter, the foll o wing information is required. • Name – Enter a meaningful na m[...]

Page 48 Session Limit This new feature allows to drop the new sess ions from both WAN and LAN side. If the new sessions number are exce ed the maximum sess ions in a sampling time. Figure 5-3: Session Limit Sessi on Limi t Sampl ing Tim e The period to count the n ew session. Only thos e new sessions occurred in the most recently sampli ng time wer[...]

Page 49 System Filter Exception System Filter Exception Ru les: The rules with which any received pack ets is complied, the packets will not proces sed by Firewall or NAT module, b ut to be processed directly by system protocol s tack. Figure 5-4: System Filter Exception Firewall Exception Enable The check box can allow you enable or disable firewa[...]

Page 50 6: QoS Configuration Overview The Load Balance r provides QoS, which supports the high quality of ne twork service. Because it will classify outgoing pa ckets based on some policies defined by users , make some real-time applications to get be tter response or performance. QoS Setup The following web page mana gement are guiding you how to [...]

Page 51 Policy Configuration When you use QoS , you must define some policies to make some pac kets to have higher priority to pass thro ugh. Figure 6-2: Po licy Configurat ion Data – Policy Configuration. Network Admissi on Policy This section identifies each policy • Policy N ame List – When adding a new Policy, ignore this list. To edi t a[...]

Page 52 7: Management Assistant Overview The following advanced features are provided. • SNMP • Email Alert • SNMP • Syslog • Upgrade Firmware This chapter contains details of the configuration and use of eac h of these fea tures. SNMP This section is only useful if you have SNMP (Simple Network Management Pro tocol) software on your PC. [...]

Page 53 Settings – SNMP System Information • Contact Person – The name of the person responsible for this devic e. • Device name – The name of The Load Balancer. • Physical Location – The location of The Load Balanc er. Trap Targets Enter the IP address of a ny targets (PCs running SNMP software) to which you want traps to be sen t. A[...]

Page 54 Settings – Email Alert Enable/Disable Email Alert • Enable – This will enable email alert to s end a warning email when WAN port was disconne cted. Email Alert Configuration • Sender Address – It is an email address that s ends a warning email to a recipient. • Recipient Addre ss –It is an email a ddress a warning email will b[...]

Page 55 Syslog This feature can send re al time system informa tion on the web page or to the specified PC. Syslog Configuration – Syslog Configuration allow you where to send s ystem information to other machine or not. There are up to three machine s you can choose to send your system log. Message Status– Messages send only keep wh en “keep[...]

Page 56 Syslog Configur ation Syslog Global • Ena ble – Set to “enable”, i f you want to sen d system log mess ages to other machine. Keep Sent Messages • Ena ble – Checke d this, if you want to keep sent messages, otherwise the sent messages will be deleted. Syslog Server • IP address: U p to 3 syslog se rvers can be used. • Ena bl[...]

Page 57 Admin Password Screen The password screen allows you to assign a pa ssword to T he Load Balancer. Figure 7-4: Admin Pass word Screen Enter the de sired password, re-en ter it in the Veri fy Pas swo rd field, then save it. When you conne ct to The Load Balancer with yo ur Browser, you will be p rompted for the pass word when you connect, as [...]

Page 58 Upgrade Firmware This Upgrade Firmware Screen allow s you to upgrade firmware or bac kup system co nfiguration by using HTTP upgrade. Figure 7-6: Firmware Upgrade Screen  You can ba ckup your s ystem configu ration by pres s “save” bu tton of S ave System Configuration. It will save the system configuration for you. (Not ice: You hav[...]

Page 59 8: Advanced LAN Configuration Overview These screens and settings are prov ided to deal w ith non-standard situati ons, or to provid e additional options for advanced users. Existin g DHCP Serve r If your LAN already has a DHCP Server, and you wish to con tinue using it, the following configura tion is required. • The DHCP Server function[...]

Page 60 Figure 8-1: Routing Note: If there is an entry or entries in the Routing table with an Index of zero (0), these are System entri es. You cannot modify or de lete these entries. Settings – Routing Dynamic Routing • RIP v2 – This ac ts as “master” switch. If enabled, the selected WAN or LAN will run RIPv1/v2, o therwise they don’t[...]

Page 61 Gatewa y The IP Address of the Gatewa y or Rout er that The Load Balancer mus t use to communicate with the des tination above. (NOT the router attached to the remote segment.) Interface Select the c orrect interface, usuall y "LAN ". The "WAN" interfac e is only a vailable if NAT (Network Address Translation) is disable[...]

Page 62 Gateway IP Address 192.168.1.100 Interface LAN Metr ic 2 Entry 2 (Segment 2) Destination IP Address 192.168.3.0 Network Mask 255.255.255.0 (Standard Class C) Gateway IP Address 192.168.1.100 Interface LAN Metr ic 3 For Router A's Default Route Destination IP Address 0.0.0. 0 Network Mask 0.0.0.0 Gateway IP Address 192.168.1.1 Metric 2 [...]

Page 63 9: Operation and Status Operation Once both The Load Balancer and the PC s are configured, operation is automatic. However, there are some situations where additional Internet configuration ma y be required: Refe r t o Chapter 4 - Advanced Features for fur ther details . Syste m Statu s Use the System Status link on the main menu to view th[...]

Page 64 Data – System Status WAN Information • Connection Status – Current status – either "Conn ected" or "Not connec ted". • Connection Type – The type of connection used – DHCP, Fixed IP, PPPoE, or PPTP. • "Force Renew" button– Only available if using a d ynamic IP address (DHCP). Clicking this but[...]

Page 65 Buttons • Refresh – Update the da ta on s creen. • Restart – Restart (reboot) The Load Balancer. • Restore Factory Defaults – This will delete all exis ting settings, and restore the factory default s ettings. See below for details. Restore Factory Defaults When the "Res tore Factory Defaults" button on the Status scre[...]

Page 66 WAN Statu s Use the WAN Status link on the main menu to view this screen. Figure 9-3: WAN Status Data – System Status NAT Statistics This section displays data for each WAN por t. • Connection status – This will disp lay either Connected or N ot Connected . • Default Loading Share - The default traffic loading between the WAN ports.[...]

Page 67 NAT Status This screen is displayed when you click the "Check NAT Detail" button on the WAN Status screen. Figure 9-4: NAT Status Data – NAT Status LAN IP Info • IP A dd res s – The LAN IP Address of The Load Balancer. • Mask Address – The Network Mask (Subne t Mask) for the IP Address above. Active WAN IP Info There is [...]

Page 68 TCP Prosperity This displays the MSS (Maximum Segment Size) and Maximum Windows size for TCP pac kets. NAT Traffic This section displays statistics for both outgoing (LAN to In ternet) and Incoming (Internet to Local) traffic . NAT Connections This displays the curren t number of active connec tions. For further details, click the "Vie[...]

Page 69 Appendix A Specifications Model BR-6624 Dimensions 245mm (W) x 137mm (D) x 30mm (H) Operating Temperature 0 ° C to 40 ° C Storage Temperature -10 ° C to 70 ° C Network Protocol: TCP/IP Network Interface: 6 Ethernet: 4 * 10/100BaseT (RJ45) auto-Switching Hub ports for LAN devices 2 * 10/100BaseT (RJ45) for WAN LEDs 8 LAN 4 WAN 1 Status 1[...]

Page 70 Appendix B Windows TCP/IP Setup Overview TCP/IP Settings If using the default Load Balancer settings, and the default Window s 95/98/ME/2000 TCP/IP settings, no c hanges need to be made. • By default, The Load Balancer will act as a DHC P Server, aut omatically providing a suitable IP Address (and related information) to each PC when the [...]

Page 71 Figure B-2: IP Address (Win 95) Ensure your TCP/IP settings are correct, as follows: Using DHCP To use DHCP, select the radio button O btain an IP Add ress aut omatical ly . This is the default Windows settings. Restart your PC to ensure it obtains an IP Addre ss from The Load Balancer. Using "Specify an IP Address" If your PC is [...]

Page 72 • On the DNS Configuration tab, ensu re Enable DNS is selected. If the DNS Server Search Order list is empty, enter the DN S address provi ded by your ISP in the fields beside the Add butto n, then click Ad d . Figure B -4: DNS T ab (Win 95/98) Checking TCP/IP Settings - Win dows 2000: 1. Select Control Panel - Network and Dial-up Connect[...]

Page 73 Figure B-6: TCP/IP Propert ies (Win 2000) 5. Ensure your TCP/IP settings are correct: Using DHCP To use DHCP, select the radio button O btain an IP Add ress aut omatical ly . This is the default Windows settings. Restart your PC to ensure it obtains an IP Addre ss from The Load Balancer. Using a fixed IP Address ( "Use the following IP[...]

Page 74 Checking TCP/IP Settings - Win dows XP: 1. Select Control Panel - Network Connection. 2. Ri ght cl ick the Local Area Connection and choose Properties . You should see a s creen like the following: Figure B-7: Network Configuration (Windows XP) 3. Select the TCP/IP protocol for your network card. 4. Click on the Properties button . You shou[...]

Page 75 Figure B-8: TCP/IP Properties (Windows XP) 5. Ensure your TCP/IP settings are correct. Using DHCP To use DHCP, select the radio button obtain an IP Address automatically . This is the default Windows settings. Restart your PC to ensure it obtains an IP Addre ss from The Load Balancer. Using a fixed IP Address ( "Use the following IP Ad[...]

Page 76 Appendix C Troubleshooting Overview This chapter cove rs some common proble ms that may be enc ountered while u sing The Load Balancer and some possible solutions to them. If you follow the suggested steps and The Load Balancer still does not function properly, con tact your dealer for further advice. General Problems Problem 1: Can't [...]

Page 77 Solu tio n 2 : The Load Balancer pro cesses the data pas sing through it, so it is no t transparent. Use the Special Applications feature to allow the use of In ternet applicatio ns which do not function correctly. If this does s olve the problem you can use the DMZ func tion. This should w ork with most applications, but: • It is a secur[...]