User manual SMC SMC7904WBRAS-N2 V2

[. . . ] USER GUIDE ADSL2 BARRICADETM N 4-Port ADSL/ADSL2+ Wireless Router SMC7904WBRAS-N2 v2 4-Port ADSL/ADSL2+ Wireless Router User Guide No. 1, Creation Road III, Hsinchu Science Park, 30077, Taiwan, R. O. C. TEL: +886 3 5770270 Fax: +886 3 5780764 March 2012 Pub. # 149xxxxxxxxx SMC-UG-0312-01 Information furnished by SMC Networks, Inc. [. . . ] However, when the access point's DHCP relay agent is enabled, received client requests can be forwarded directly by the access point to a known DHCP server on another subnet. Responses from the DHCP server are returned to the access point, which then broadcasts them back to clients. Figure 37: DHCP Relay The following items are displayed on this page: DHCP Mode -- When set to "DHCP Relay, " enables routing of the DHCP service to units on a different subnet. Relay Server -- Enter the address of the DHCP server for routing to other units. ­ 77 ­ CHAPTER 6 | LAN Settings DHCP Settings DHCP SERVER The unit can support up to 253 local clients. Addresses are assigned to clients from a common address pool configured on the unit. Configure an address pool by specifying start and end IP addresses. Be sure not to include the unit's IP address in the address pool range. Figure 38: DHCP Server The following items are displayed on this page: LAN IP Address -- Displays the LAN IP address for management of the ADSL Router. (Default: 192. 168. 2. 1. ) Subnet Mask -- Displays the local subnet mask. (Default: 255. 255. 255. 0) DHCP Mode -- When set to "DHCP Server, " enables the ADSL Router to act as a DHCP server. Interface -- Selects either the RJ-45 LAN ports, or wireless interfaces. IP Pool Range -- Configures the IP address pool for the DHCP server and determines how many IP addresses can be assigned. NOTE: Do not enter the ADSL Router's LAN IP address as part of the IP Pool range. Show Client -- Displays the current DHCP client table. Default Gateway -- Specifies the gateway address through which traffic is routed from. Usually the LAN IP address of the ADSL Router ­ 78 ­ CHAPTER 6 | LAN Settings DHCP Settings MAX Lease Time -- Select a time limit for the use of an IP address from the IP pool. When the time limit expires, the client has to request a new IP address. (Default: 86400 seconds; Range: 60~86400 seconds; -1 indicates an infinite lease time) Domain Name -- Specifies the unique name used to identify the ADSL Router on the network. DNS Servers -- Sets up to three domain name server IP addresses. Set VendorClass IP Range -- Click on this option to assign IP address ranges to specific device types. Device Name -- Describes the device type. Start/End Address -- Specifies the IP addresses from the DHCP IP pool to assign to this device type. Router Address -- Specifies a default router IP address to use for traffic from this device. Option 60 -- Specifies the DHCP Option 60 vendor class identifier that indicates the device type. Figure 39: Device IP Range Table ­ 79 ­ CHAPTER 6 | LAN Settings DHCP Settings DHCP STATIC IP Assigns a physical MAC address to the DHCP pool by mapping it to a corresponding IP address. Figure 40: DHCP Static IP Assignment The following items are displayed on this page: IP Address -- Enter the IP address from the DHCP address pool to assign to the specified MAC address. MAC Address -- Enter the MAC address to be assigned to a static IP address from the DHCP address pool. Add -- Selecting this option enters the mapped MAC address and IP address into the DHCP Static IP Table. [. . . ] One of the services using voice band. Sometimes used as a descriptor for all voice band services. PPP Point-to-Point Protocol. A protocol for connecting remote hosts to the Internet using TCP/IP. PPPOE PPP over Ethernet. A protocol for connecting remote hosts to the Internet over an always-on connection by simulating a dial-up connection. PSTN Public Switched Telephone Network. A network protocol used to specify a guaranteed throughput level. [. . . ]