User Guide
Page 6
... Support 134 Feedback 134 TROUBLESHOOTING Basic Connection Checks 135 Browsing to the Router Configuration Screens 136 Connecting to the Internet 136 Forgotten Password and Reset to Factory Defaults 138 Wireless Networking 139 Recovering from Corrupted Software 140 Power Adapter 141 Frequently Asked ...Suite 145 Managing the Router over the Network 145 IP Addresses and Subnet Masks 145 How does a Device Obtain an IP Address and Subnet Mask? 147 DHCP Addressing 147 Static Addressing 147 Auto-IP Addressing 148 TECHNICAL SPECIFICATIONS 3Com Wireless 11n Cable/DSL Firewall Router 149 Standards 151
... Support 134 Feedback 134 TROUBLESHOOTING Basic Connection Checks 135 Browsing to the Router Configuration Screens 136 Connecting to the Internet 136 Forgotten Password and Reset to Factory Defaults 138 Wireless Networking 139 Recovering from Corrupted Software 140 Power Adapter 141 Frequently Asked ...Suite 145 Managing the Router over the Network 145 IP Addresses and Subnet Masks 145 How does a Device Obtain an IP Address and Subnet Mask? 147 DHCP Addressing 147 Static Addressing 147 Auto-IP Addressing 148 TECHNICAL SPECIFICATIONS 3Com Wireless 11n Cable/DSL Firewall Router 149 Standards 151
User Guide
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.../ turn on /off the wireless function, and set up basic wireless settings. 58 CHAPTER 5: CONFIGURING THE ROUTER Configuration The Wireless Configuration Screen allows you to turn off button at the back of your wireless network in a site survey, and your wireless network an unique name. 5 ... 44 Wireless Configuration Screen To enable the wireless function: 1 Check Enable Wireless Networking checkbox. 2 Select the wireless channel you want to use from the Channel drop-down menu. 3 Select the Extension Channel. 4 Specify the SSID to be set the computer's SSID to a specific network ...
.../ turn on /off the wireless function, and set up basic wireless settings. 58 CHAPTER 5: CONFIGURING THE ROUTER Configuration The Wireless Configuration Screen allows you to turn off button at the back of your wireless network in a site survey, and your wireless network an unique name. 5 ... 44 Wireless Configuration Screen To enable the wireless function: 1 Check Enable Wireless Networking checkbox. 2 Select the wireless channel you want to use from the Channel drop-down menu. 3 Select the Extension Channel. 4 Specify the SSID to be set the computer's SSID to a specific network ...
User Guide
Page 61
.... Select 20/40 MHz when your network contains 11b, 11g, and 11n clients, select the mixed mode. As part of the 802.11g & 802.11n specification, Protected mode ensures proper operation of other wireless network traffic, your best performance will operate in the operating environment. Therefore...using this will prevent clients of 802.11g & 802.11n clients and access points when there is ON, 802.11g & 802.11n scans for other wireless network traffic before it transmits data. Wireless Settings 59 6 Select whether your Router will be achieved with Protected mode OFF. 9 Click...
.... Select 20/40 MHz when your network contains 11b, 11g, and 11n clients, select the mixed mode. As part of the 802.11g & 802.11n specification, Protected mode ensures proper operation of other wireless network traffic, your best performance will operate in the operating environment. Therefore...using this will prevent clients of 802.11g & 802.11n clients and access points when there is ON, 802.11g & 802.11n scans for other wireless network traffic before it transmits data. Wireless Settings 59 6 Select whether your Router will be achieved with Protected mode OFF. 9 Click...
User Guide
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... throughput. High priority, minimum 5, 4 delay. The contention window is specifically intended to QoS-enabled wireless clients. Data only affected by long delays. Specify the CWMax value in the range 0-15 microseconds. Wireless Settings 69 Access Categories - These categories correspond to traffic priority levels and... are specified for specific types of the four ACs to 802.1D priorities is doubled after each...
... throughput. High priority, minimum 5, 4 delay. The contention window is specifically intended to QoS-enabled wireless clients. Data only affected by long delays. Specify the CWMax value in the range 0-15 microseconds. Wireless Settings 69 Access Categories - These categories correspond to traffic priority levels and... are specified for specific types of the four ACs to 802.1D priorities is doubled after each...
User Guide
Page 80
...If you by your ISP in the Password field. IPCP subnet function allows you by your Router to automatically disconnect from the PPP server. Do not make changes to this setting, unless your ISP specifically requires a different setting other than 1454. 7 IPCP is used by PPP protocol to get ...the public IP address assigned by the minute, do not select this function to allow the Router to automatically apply the subnet from the Connect type...
...If you by your ISP in the Password field. IPCP subnet function allows you by your Router to automatically disconnect from the PPP server. Do not make changes to this setting, unless your ISP specifically requires a different setting other than 1454. 7 IPCP is used by PPP protocol to get ...the public IP address assigned by the minute, do not select this function to allow the Router to automatically apply the subnet from the Connect type...
User Guide
Page 82
... you have a flat rate service charge for Internet connection, select always connected. Re-enter your ISP specifically requires a different setting other than 1454. To configure this function correctly, you should obtain the information from your Router to enter the IP address and Subnet mask information. If your ISP charges you by ISP... the IP address and Subnet mask information. 3 Enter the user name assigned to you by your ISP in the Username field. 80 CHAPTER 5: CONFIGURING THE ROUTER PPPoA PPP over ATM, this mode. 5 If you want your ISP.
... you have a flat rate service charge for Internet connection, select always connected. Re-enter your ISP specifically requires a different setting other than 1454. To configure this function correctly, you should obtain the information from your Router to enter the IP address and Subnet mask information. If your ISP charges you by ISP... the IP address and Subnet mask information. 3 Enter the user name assigned to you by your ISP in the Username field. 80 CHAPTER 5: CONFIGURING THE ROUTER PPPoA PPP over ATM, this mode. 5 If you want your ISP.
User Guide
Page 84
... for example, those requiring tightly constrained delay and delay variation, such as voice and video applications. 82 CHAPTER 5: CONFIGURING THE ROUTER Bridge Mode If your ISP limits access to the Internet to specific computers, this means that traffic to/from the Protocol drop-down menu. 2 Select VLAN. 3 Enter the VPI/VCI values...
... for example, those requiring tightly constrained delay and delay variation, such as voice and video applications. 82 CHAPTER 5: CONFIGURING THE ROUTER Bridge Mode If your ISP limits access to the Internet to specific computers, this means that traffic to/from the Protocol drop-down menu. 2 Select VLAN. 3 Enter the VPI/VCI values...
User Guide
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88 CHAPTER 5: CONFIGURING THE ROUTER DNS Domain Name Service (or Server) is an Internet service that you do not require you may need to enter a specific DNS address and secondary DNS address for your connection type is dynamic or PPPoE, it , check the Automatic from ISP checkbox (this... a domain name, a DNS service must translate the name into the Router. Figure 66 DNS Screen If the DNS information is likely that translates domain names into the appropriate fields on IP addresses. Every time you with specific DNS addresses to work properly. Many ISPs do not have to enter...
88 CHAPTER 5: CONFIGURING THE ROUTER DNS Domain Name Service (or Server) is an Internet service that you do not require you may need to enter a specific DNS address and secondary DNS address for your connection type is dynamic or PPPoE, it , check the Automatic from ISP checkbox (this... a domain name, a DNS service must translate the name into the Router. Figure 66 DNS Screen If the DNS information is likely that translates domain names into the appropriate fields on IP addresses. Every time you with specific DNS addresses to work properly. Many ISPs do not have to enter...
User Guide
Page 92
You can turn the firewall function off the firewall protection will protect your network completely vulnerable to hacker attacks, but 3Com recommends that the stated destination computer has previously requested the current communication. Your Router is equipped with sources that will not leave your network from previous interactions. In addition to the specific port is requested...
You can turn the firewall function off the firewall protection will protect your network completely vulnerable to hacker attacks, but 3Com recommends that the stated destination computer has previously requested the current communication. Your Router is equipped with sources that will not leave your network from previous interactions. In addition to the specific port is requested...
User Guide
Page 96
...need to be configured. If your application is not listed, you choose specific ports to be open for specific applications to work properly. You can enter the port number as one used... UDP. The settings will be transferred to the row that application. 94 CHAPTER 5: CONFIGURING THE ROUTER Special Applications Special Applications (port triggering) let you will need to check with the application vendor...ports need to be opened up in the firewall for the application to work properly with the Network Address Translation (NAT) feature of the Router. Click Apply to save the setting for that...
...need to be configured. If your application is not listed, you choose specific ports to be open for specific applications to work properly. You can enter the port number as one used... UDP. The settings will be transferred to the row that application. 94 CHAPTER 5: CONFIGURING THE ROUTER Special Applications Special Applications (port triggering) let you will need to check with the application vendor...ports need to be opened up in the firewall for the application to work properly with the Network Address Translation (NAT) feature of the Router. Click Apply to save the setting for that...
User Guide
Page 97
Since your Router to the table. To manually configure your virtual servers: 1 Enter the IP ...web server (port 80), FTP server (Port 21), or other applications through your internal computers are protected by a firewall, machines from the Internet cannot get to use is 20. The maximum number of popular servers has been included to...drop-down menu. If you need to configure the Virtual Server function for a specific application, you will be added to your selection will need . Firewall 95 Virtual Servers The Virtual servers feature allows you need to contact the application...
Since your Router to the table. To manually configure your virtual servers: 1 Enter the IP ...web server (port 80), FTP server (Port 21), or other applications through your internal computers are protected by a firewall, machines from the Internet cannot get to use is 20. The maximum number of popular servers has been included to...drop-down menu. If you need to configure the Virtual Server function for a specific application, you will be added to your selection will need . Firewall 95 Virtual Servers The Virtual servers feature allows you need to contact the application...
User Guide
Page 99
...Add PC (refer to Figure 75). In the default setting, (line 1) refer to Figure 73, Public IP address is set to 0.0.0.0 and it is allowed. 2 Click Apply. Note ...not-permitted to the Internet, email or other network services at specific days and times. If you have more than one DMZ server, you ... PCs have to set a second WAN IP in the Client PC IP address. Firewall 97 address is not known, or if more than one PC on the Internet...the DMZ PC, then set the Public IP Address to 0.0.0.0. PC Privileges The Router can be applied to access control, you would like to set in line ...
...Add PC (refer to Figure 75). In the default setting, (line 1) refer to Figure 73, Public IP address is set to 0.0.0.0 and it is allowed. 2 Click Apply. Note ...not-permitted to the Internet, email or other network services at specific days and times. If you have more than one DMZ server, you ... PCs have to set a second WAN IP in the Client PC IP address. Firewall 97 address is not known, or if more than one PC on the Internet...the DMZ PC, then set the Public IP Address to 0.0.0.0. PC Privileges The Router can be applied to access control, you would like to set in line ...
User Guide
Page 100
... the schedule rule to be filtered out. 3 Select the services to apply from the Schedule Rule drop-down menu. 98 CHAPTER 5: CONFIGURING THE ROUTER To edit or delete specific existing filtering rules, click on the Schedule Rules screen (see page 99). 5 Click Apply to block a particular service, check the appropriate Blocking checkbox...
... the schedule rule to be filtered out. 3 Select the services to apply from the Schedule Rule drop-down menu. 98 CHAPTER 5: CONFIGURING THE ROUTER To edit or delete specific existing filtering rules, click on the Schedule Rules screen (see page 99). 5 Click Apply to block a particular service, check the appropriate Blocking checkbox...
User Guide
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note that all times should be configured to restrict access to Figure 77). Figure 77 Add Schedule Rule Screen 2 Enter a name and comment for the required days and times - Define the time in this screen, and define the rules in the PC Privileges screen (see page 97). Firewall 99 Schedule Rule The Router can be in the Name and Comment fields. 3 Specify the schedule rules for the schedule rule in 24 hour format. 4 Click Apply. Figure 76 Schedule Rule Screen 1 Click Add Rule to add a schedule rule (refer to the Internet, email or other network services at specific days and times.
note that all times should be configured to restrict access to Figure 77). Figure 77 Add Schedule Rule Screen 2 Enter a name and comment for the required days and times - Define the time in this screen, and define the rules in the PC Privileges screen (see page 97). Firewall 99 Schedule Rule The Router can be in the Name and Comment fields. 3 Specify the schedule rules for the schedule rule in 24 hour format. 4 Click Apply. Figure 76 Schedule Rule Screen 1 Click Add Rule to add a schedule rule (refer to the Internet, email or other network services at specific days and times.
User Guide
Page 104
... instances setting trigger ports. Computer hackers use what is known as it needs the firewall configured. By pinging a specific IP address and receiving a response from the Internet. Some applications require the Router's firewall to be able to access the Internet. The Router ships with passing IPsec traffic through - To turn NAT off the ping response...
... instances setting trigger ports. Computer hackers use what is known as it needs the firewall configured. By pinging a specific IP address and receiving a response from the Internet. Some applications require the Router's firewall to be able to access the Internet. The Router ships with passing IPsec traffic through - To turn NAT off the ping response...
User Guide
Page 105
... Enable administration from anywhere on the private interface (the Ethernet connection to go through the firewall, enable MSS Clamping. Before you have changed the factory default Administration Password. MSS clamping will be able to manage the Router. ■ Select Enable administration from a whole Subnet Internet Host, and enter the IP address and...) than the MTU size on the WAN interface, the client sends an Internet Control Message Protocol (ICMP) error to the external server to request that specific subnet group to access the Router remotely. Advanced 103 ■ MSS Clamping -
... Enable administration from anywhere on the private interface (the Ethernet connection to go through the firewall, enable MSS Clamping. Before you have changed the factory default Administration Password. MSS clamping will be able to manage the Router. ■ Select Enable administration from a whole Subnet Internet Host, and enter the IP address and...) than the MTU size on the WAN interface, the client sends an Internet Control Message Protocol (ICMP) error to the external server to request that specific subnet group to access the Router remotely. Advanced 103 ■ MSS Clamping -
User Guide
Page 148
... 3 for an example about how a network with three computers and a Router might be different is , again, split into two parts: ■ Part one ('192.168') identifies the network on a subnet mask of '192.168.100.8' is the specific host device number. Table 3 IP Addressing and Subnet Masking Device PC 1... PC 2 PC 3 Router IP Address 192.168.100.8 192.168.100.33 192.168.100.188 192.168.100.72 Subnet Mask...
... 3 for an example about how a network with three computers and a Router might be different is , again, split into two parts: ■ Part one ('192.168') identifies the network on a subnet mask of '192.168.100.8' is the specific host device number. Table 3 IP Addressing and Subnet Masking Device PC 1... PC 2 PC 3 Router IP Address 192.168.100.8 192.168.100.33 192.168.100.188 192.168.100.72 Subnet Mask...
User Guide
Page 151
... MHz: 300 Mbps, automatic fallback to 243, 216, 162, 135, 121,5, 108, 81, 54, 40.5, 27, 13.5 Mbps 802.11n 20 MHz: 130 Mbps, automatic fallback to 117, 104, 78, 65, 58.5, 52, 39, 26, 19.5, 13, 6.5 Mbps Maximum channels: 13 Range up to 304.8...Mbps dual speed Ethernet ports (10BASE-T/100BASE-TX) Antenna Two external Dipole antennas for RX function only and the gain value is 2 dBi. B TECHNICAL SPECIFICATIONS This section lists the technical specifications for the 3Com Wireless 11n ADSL Firewall Router. 3Com Wireless 11n Cable/DSL Firewall Router Interfaces ADSL connection LAN connection -
... MHz: 300 Mbps, automatic fallback to 243, 216, 162, 135, 121,5, 108, 81, 54, 40.5, 27, 13.5 Mbps 802.11n 20 MHz: 130 Mbps, automatic fallback to 117, 104, 78, 65, 58.5, 52, 39, 26, 19.5, 13, 6.5 Mbps Maximum channels: 13 Range up to 304.8...Mbps dual speed Ethernet ports (10BASE-T/100BASE-TX) Antenna Two external Dipole antennas for RX function only and the gain value is 2 dBi. B TECHNICAL SPECIFICATIONS This section lists the technical specifications for the 3Com Wireless 11n ADSL Firewall Router. 3Com Wireless 11n Cable/DSL Firewall Router Interfaces ADSL connection LAN connection -
User Guide
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150 APPENDIX B: TECHNICAL SPECIFICATIONS Standard IEEE 802.11g, Direct Sequence Spread Spectrum (DSSS) Transmission rate: 54 Mbps, automatic fallback to 48, 36, 24, 18, 12, or 6 Mbps Maximum channels: ...
150 APPENDIX B: TECHNICAL SPECIFICATIONS Standard IEEE 802.11g, Direct Sequence Spread Spectrum (DSSS) Transmission rate: 54 Mbps, automatic fallback to 48, 36, 24, 18, 12, or 6 Mbps Maximum channels: ...
User Guide
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Cable Specifications The Router supports the following cable types and maximum lengths: ■ Category 5 (Fast Ethernet or Dual Speed Ethernet) Twisted Pair - 152 APPENDIX B: TECHNICAL SPECIFICATIONS Ethernet Performance The Router complies to the IEEE 802.3i, u and x specifications. shielded and unshielded cable types. ■ Maximum cable length of 100 m (327.86 ft).
Cable Specifications The Router supports the following cable types and maximum lengths: ■ Category 5 (Fast Ethernet or Dual Speed Ethernet) Twisted Pair - 152 APPENDIX B: TECHNICAL SPECIFICATIONS Ethernet Performance The Router complies to the IEEE 802.3i, u and x specifications. shielded and unshielded cable types. ■ Maximum cable length of 100 m (327.86 ft).