User manual SMC SMC7301TA

[. . . ] BARRICADE ISDN Router SMC7301TA TM User's Manual 1 CHAPTER 1 INTRODUCTI ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 OVERVIEW OF SMC7301TA ISDN ROUTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SMC7301TA APPLICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Accessing the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] If properly configured, when a device reboots and acquires the IP address from the SMC7301TA, the IP addresses of both the primary and the secondary DNS server will be provided for client workstations or PCs. Secondary DNS IP Address: the IP address of the secondary domain name server. Note: When an SMC7301TA connects to the ISP, it will automatically be assigned the IP address for a primary Domain Name Server (DNS) , as well as the IP address for a secondary DNS. Alternative ly, the user can decide to assign their own DNS IP addresses. DHCP: enables or disables the SMC7301TA's Dynamic Host Configuration Protocol (DHCP) feature. If you want the SMC7301TA to act as a DHCP server and assigns private IP addresses to any requestin g DHCP client, make sure DHCP is enabled. When enabled, the SMC7301TA will provide an IP address, network mask, gateway address (SMC7301TA's private IP address), and DNS addresses to any workstations on the local area network that are configured as a DHCP client. Devices on your network that are configured with public IP addresses are not DHCP clients. Therefore, you need to assign their IP addresses, network mask, default gateway IP address, primary and secondary DNS IP addresses manually. IP Address Assignment-High & Low: the maximum and minimum private IP address which can assigned to each client PC or workstation in the LAN. Step 3: Click Routing, Address Translation or Static DHCP if it is necessary to set these configurati ons. Otherwise click Apply to confirm the configuration and return to the main configuration screen. The IP Routing Table The IP Routing Table contains all the information that the SMC7301TA needs to route an IP data packet. You can view the IP Routi ng Table by 31 clicking on the Routing button at the bottom of the Advanced Internet Access Setup screen (described in the previous section). From this screen, you can also add new routing entries to the table. The following screen shows an example of the IP Routing Table. When an IP packet arrives in the SMC7301TA, IP tries to determine if the destination IP address contained in the packet is within the network defined by the "Dest IP" and "Netmask" pair of an entry in the routing tab le. If a match is found, the packet is forwarded to the interface or profile specified in the "IfName" field. The "Hops" field is the number of routers the packet must travel through in order to reach its final destination. If this value is zero, the destination is in a network directly attached to this router, such as a LAN. If no match is found with a destination network, then a special entry called the "Default IP Route" is used. This normally is set to a path where another router can be reached that has additional information about other networks not known to the Broadband Router, such as the interface to the Internet. If no match is found and a default IP route is not defined, the IP packet is discarded and will go nowhere. An entry for a specif ic host or network may be added manually. [. . . ] Unfortunately, this means that you have to re-enter all of your configuration data. To clear the configuration and restore the password to the default, follow these steps: Step 1: Using the supplied Null Modem Cable, connect a console (or a PC running a terminal emulation program such as HyperTerminal) to the SMC7301TA Console port. The default port settings are 19200, N, 8, 1, no flow control. Step 2: Turn off the SMC7301TA, then turn it on again. [. . . ]