Accessing the Setup Wizard 35 1 Enter your Internet IP address in the WAN IP field. 2 Enter the subnet mask in the Subnet Mask field. 3 Enter the default gateway IP address in the Default Gateway field. 4 Enter the DNS address in the DNS field. 5 Enter your VPI and VCI information in the VPI/VCI fields. 6 Select the encapsulation type (LLC or VC MUX) in the Encapsulation drop-down menu. This information should be provided to you by your ISP. 7 Check all of your settings, and then click Next.
36 CHAPTER 4: RUNNING THE SETUP WIZARD To assign a fixed IP address: 1 Enter your Internet IP address in the WAN IP field. 2 Enter the subnet mask in the Subnet Mask field. 3 Enter the default gateway IP address in the Default Gateway field. 4 Enter the DNS address in the DNS field. 5 Enter your VPI and VCI information in the VPI/VCI text boxes. 6 Select the encapsulation type (LLC or VC MUX) in the Encapsulation drop-down menu. This information should be provided to you by your ISP.
Accessing the Setup Wizard Setup Wizard Wireless Settings 37 The Wireless Settings screen allows you to set up the SSID and radio channel used for the wireless connection. Figure 25 Wireless Settings Screen 1 Select the channel you want to use from the Channel drop-down menu. 2 Specify the SSID to be used by your Wireless Network in the SSID field. If there are other wireless networks in your area, you should give your wireless network an unique name.
38 CHAPTER 4: RUNNING THE SETUP WIZARD Setup Wizard Configuration Summary When you have completed the Setup Wizard, a configuration summary will appear. Verify the configuration information of the Router and then click Apply to save your settings. 3Com recommends that you print out this page for your records. Figure 26 Configuration Summary Screen Your Router is now configured and ready for use. See Chapter 5 for a detailed description of the Router configuration.
CONFIGURING THE ROUTER Navigating Through the Router Configuration Pages This chapter describes all the screens available through the Router configuration pages, and is provided as a reference. To get to the configuration pages, enter the Router’s default IP in the location bar of your browser. The default IP is http://192.168.1.1. However, if you changed the Router LAN IP address during initial configuration, use the new IP address instead. Enter your password to login to the management interface.
40 CHAPTER 5: CONFIGURING THE ROUTER LAN Settings Your Router is equipped with a DHCP server that will automatically assign IP addresses to each computer on your network. The factory default settings for the DHCP server will work with most applications. If you need to make changes to the settings, you can do so. The LAN settings screen allows you to: ■ Change the default IP address of the Router. The default IP is 192.168.1.1 ■ Change the Subnet Mask. The default setting is 255.255.255.
LAN Settings 41 3 Enter the IP address range in the IP Pool Start Address and IP Pool End Address fields. 4 Specify the DHCP Lease time by selecting the required value from the Lease Time drop-down menu. The lease time is the length of time the DHCP server will reserve the IP address for each computer. 5 Specify the Local Domain Name for your network (this step is optional). 6 Enter the IP address of the NBX Call Processor in the 3Com NBX Call Processor field (this step is optional).
42 CHAPTER 5: CONFIGURING THE ROUTER ■ Check the Fix checkbox to permanently fix the IP address. ■ Click Release to release the displayed IP address. ■ Click New to allocate an IP address to a MAC address (refer to Figure 30). Enter the required details and click Apply to save your settings. Figure 30 Fixed Mapping Clients List Screen The DHCP server will give out addresses to both wired and wireless clients.
Wireless Settings Wireless Settings 43 The Wireless Settings screens allow you to configure the settings for the wireless connections. You can enable or disable the wireless connection for your LAN. When disabled, no wireless PCs can gain access to either the Internet or other PCs on your wired or wireless LAN through this Router.
44 CHAPTER 5: CONFIGURING THE ROUTER Configuration The Wireless Configuration Screen allows you to turn on/ turn off the wireless function, and set up basic wireless settings. Figure 32 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 Specify the SSID to be used by your wireless network in the SSID field.
Wireless Settings Encryption 45 This feature prevents any non-authorized party from reading or changing your data over the wireless network. Figure 33 Encryption Screen Select the wireless security mode that you want to use from the drop-down menu, and click Apply.
46 CHAPTER 5: CONFIGURING THE ROUTER 64-bit WEP WEP is the basic mechanism to transmit your data securely over the wireless network. Matching encryption keys must be setup on your Router and wireless client devices to use WEP. Figure 34 64-bit WEP Screen To enable 64-bit WEP: 1 You can enter the 64-bit WEP key manually: ■ enter the WEP key as 5 pairs of hex digits (0-9, A-F).
Wireless Settings 47 128-bit WEP WEP is the basic mechanism to transmit your data securely over the wireless network. Matching encryption keys must be set up on your Router and wireless client devices to use WEP. Figure 35 128-bit WEP Screen To enable 128-bit WEP: 1 You can enter the 128-bit WEP key manually: ■ enter your WEP key as 13 pairs of hex digits (0-9, A-F).
48 CHAPTER 5: CONFIGURING THE ROUTER WPA-PSK (no server) WPA (Wi-Fi Protected Access) provides dynamic key changes and constitutes the best security solution. If your network does not have a Radius server. Select the no server option. Figure 36 WPA-PSK (no server) Screen 1 Select WPA-PSK (no server) from the WPA drop-down menu. 2 Select WPA mode from the drop-down menu, three modes are supported: WPA, WPA2, and Mixed mode.
Wireless Settings 49 WPA (with RADIUS Server) WPA (Wi-Fi Protected Access) provides dynamic key changes and constitutes the best security solution. This function requires that a Radius server is running on the network. Figure 37 WPA (with RADIUS Server) Screen 1 Select WPA with Radius server from the Security Mode drop-down menu. 2 Select WPA mode from the drop-down menu, three modes are supported: WPA, WPA2, and Mixed mode.
50 CHAPTER 5: CONFIGURING THE ROUTER Connection Control This feature is used to filter the clients based on their MAC addresses. Check the Enable MAC Address Filtering checkbox, the Connection Control screen will appear. Figure 38 Connection Control Screen There are two options available in the Access rule for registered MAC address field: ■ if you click Allow, this means only the MAC addresses registered here in the list will be allowed to access the Router via wireless link.
Wireless Settings Client List 51 You can view the list of all wireless clients that are connected to the Router. Figure 39 Client List Screen Click Refresh to update the list. WDS Settings The Router supports WDS (Wireless Distribution System). WDS enables one or more Access Points to rebroadcast received signals to extend range and reach, though this can affect the overall throughput of data. Figure 40 Wireless WDS Settings Screen 1 Check the Enable WDS Function checkbox.
52 CHAPTER 5: CONFIGURING THE ROUTER 3 Click Add to add the MAC address of the AP to the list, the add WDS screen will appear (refer to Figure 41). Figure 41 Add WDS screen Enter the MAC address(es) of one or more access points in the AP MAC Address table, and click Apply. Advance The Advance screen allows you to configure detail settings for your wireless connection.
Wireless Settings Profile 53 ■ DTIM Interval: a DTIM interval, also known as a Data Beacon Rate, is the frequency at which an access point's beacon will include a DTIM. This frequency is usually measured in milliseconds (ms). ■ Fragmentation Threshold: this is the maximum size for directed data packets transmitted. The use of fragmentation can increase the reliability of frame transmissions. Because of sending smaller frames, collisions are much less likely to occur.
54 CHAPTER 5: CONFIGURING THE ROUTER Internet Settings ATM PVC You can configure the settings for your DSL connection. This feature is used to configure the parameters for your DSL connection. The information necessary to complete these screens should be obtained from your ISP. Check with your ISP first as for what type of connection you should choose. Figure 44 ATM PVC Screen You should see the first entry already contains information that’s been configured using the Wizard in the initial setup.
Internet Settings 55 PPPoE PPP over Ethernet, providing routing for multiple PCs. To configure this function correctly, you should obtain the information from your ISP. Figure 45 PPPoE Settings Screen 1 Select PPPoE from the Protocol drop-down menu. 2 Enter the IP address and Subnet Mask information provided by your ISP into the IP address and Subnet Mask fields. 3 Enter the user name assigned to you by your ISP in the Username field.
56 CHAPTER 5: CONFIGURING THE ROUTER ■ Manual - Start in Last State means that after re-booting the Router, the Internet connection will stay in the previous condition before the reboot. 5 If you want your Router to automatically disconnect from the Internet after a period of inactivity, specify a time in the Idle Time (Minutes) field. (Enter a value of 0 to disable this timeout). 6 Enter the MTU value supplied by your ISP. If you do not know this, leave it at the default value.
Internet Settings 57 13 Click Apply. PPPoA PPP over ATM, this is a popular choice among European DSL providers. To configure this function correctly, you should obtain the information from your ISP. Figure 46 PPPoA Settings Screen 1 Select PPPoA from the Protocol drop-down menu. 2 IP assigned by ISP: ■ ■ Select Yes, if your ISP assigns your IP address dynamically, and proceed to next step. If your ISP has assigned you a fixed or static IP address, select No in the IP assigned by ISP field.
58 CHAPTER 5: CONFIGURING THE ROUTER 4 Select the connection type from the Connect Type drop-down menu. ■ ■ ■ ■ ■ Always Connected means that Internet connection to your ISP is always on. Auto - Triggered by Traffic means your Router will automatically connect to your ISP every time a PC needs to access the Internet. Manual - Start in Disconnected means that after re-booting the Router, the Internet connection will need to be re-established manually by the user.
Internet Settings 59 used for connections in which there is no fixed timing relationship between samples, but that still need a guaranteed QoS. Compare with ABR, CBR, and UBR. ■ UBR (unspecified bit rate): the UBR service class is intended for delay-tolerant or non-real-time applications, for example, those which do not require tightly constrained delay and delay variation, such as traditional computer communications applications. The UBR service may be considered as "best effort service".
60 CHAPTER 5: CONFIGURING THE ROUTER 4 Select the type of Quality of Service that you want from the QoS Class drop-down menu. ■ ■ ■ CBR (constant bit rate): the CBR service class is intended for real-time applications, for example, those requiring tightly constrained delay and delay variation, such as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appropriate for CBR service.
Internet Settings 61 Routing Mode over ATM (RFC 1483 Routed Mode) This mode is commonly used with either dynamic or static IP addressing. In this mode the WAN ADSL port will be configured with an IP address provided by the ISP. To configure the settings correctly, you should obtain the information on this page from your ISP. Figure 48 Routing Mode over ATM Screen 1 Select Routing Mode over ATM from the Protocol drop-down menu.
62 CHAPTER 5: CONFIGURING THE ROUTER 8 Select the type of Quality of Service that you want from the QoS Class drop-down menu. ■ ■ ■ CBR (constant bit rate): the CBR service class is intended for real-time applications, for example, those requiring tightly constrained delay and delay variation, such as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appropriate for CBR service.
Internet Settings 63 Dynamic/Fixed IP in 1483 Bridge Mode (For Multiple PCs) Your ISP uses fixed/dynamic IP to provide the Internet connection. To configure this function correctly, you should obtain the information on this page from your ISP. Figure 49 Dynamic/Fixed IP for Bridge Mode Screen 1 Select Dynamic/Fixed IP for Bridge Mode from the Protocol drop-down menu.
64 CHAPTER 5: CONFIGURING THE ROUTER 8 Select the type of Quality of Service that you want from the QoS Class drop-down menu. ■ ■ ■ CBR (constant bit rate): the CBR service class is intended for real-time applications, for example, those requiring tightly constrained delay and delay variation, such as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appropriate for CBR service.
Internet Settings DNS 65 Domain Name Service (or Server), an Internet service that translates domain names into IP addresses. Because domain names are alphabetic, they're easier to remember. The Internet however, is really based on IP addresses. Every time you use a domain name, a DNS service must translate the name into the corresponding IP address. For example, the domain name www.example.com might translate to 198.105.232.4. Check with your ISP for information on this page.
66 CHAPTER 5: CONFIGURING THE ROUTER Hostname & Clone MAC address To configure the Hostname and Clone MAC Address information for your Router, select Internet Settings, then go to the Clone MAC address tab. The Hostname and MAC Address screen displays. Figure 52 Hostname and MAC Address Screen 1 Some ISPs require a host name. If your ISP has this requirement, enter the host name in the Host Name field.
Firewall Firewall 67 From these pages, you can configure settings for the firewall. Your Router is equipped with a firewall that will protect your network from a wide array of common hacker attacks including Ping of Death (PoD) and Denial of Service (DoS) attacks. You can turn the firewall function off if needed. Turning off the firewall protection will not leave your network completely vulnerable to hacker attacks, but 3Com recommends that you leave the firewall enabled whenever possible.
68 CHAPTER 5: CONFIGURING THE ROUTER For low and medium levels of firewall protection, refer to Figure 54. For high level of firewall protection, refer to Figure 55.
Firewall 69 Figure 55 High Level Firewall Protection Screen If you select high level of protection, you will need to configure additional parameters for the firewall. ■ Fragmentation half-open wait - Configures the number of seconds that a packet state structure remains active. When the timeout value expires, the router drops the un-assembled packet, freeing that structure for use by another packet.
70 CHAPTER 5: CONFIGURING THE ROUTER ■ Total incomplete TCP/UDP sessions HIGH - Defines the rate of new unestablished sessions that will cause the software to start deleting half-open sessions. ■ Total incomplete TCP/UDP sessions LOW - Defines the rate of new unestablished sessions that will cause the software to stop deleting half-open sessions. ■ Incomplete TCP/UDP sessions (per min) HIGH - Maximum number of allowed incomplete TCP/UDP sessions per minute.