Aastra OpenCom 130 User Guide - Page 97
Dynamic Address Assignment for Specific Devices, Dynamic and static address assignment
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Configuration Examples OpenCom 100 in a LAN with an IP-enabled Server In many cases, an IP-enabled server configures the IP settings via DHCP for all workstations. In networks in which the IP settings are made manually, you have to enter the corresponding IP settings in the OpenCom 100 Configurator (Network: LAN menu). Additionally you should change the DHCP server to static address assignment (in the Network: DHCP menu) to enable the OpenCom 100, for example to configure connected VoIP system telephones. In certain cases you have to restrict the DHCP function of the IP-enabled server to ignore the MAC addresses for such terminals. Dynamic Address Assignment for Specific Devices In addition to the static address assignment, you can also use dynamic address assignment if you limit dynamic assignment to specific devices. You can use this e.g. to easily configure VoIP devices because you do not need to assign a fixed IP address during setup. 1. Call up the Network: DHCP page. Click Change. 2. In the Status selection, change to the Dynamic address assignment or to the Dynamic and static address assignment setting. 3. In the Devices selection, change to the with configured MAC only setting. For SIP system telephones (Aastra 673xi and Aastra 675xi), it is also possible to omit the configuration of the MAC address (see Aastra 673xi/675xi DHCP starting on page 124). In the Devices selection, change to the with configured MAC only and SIP system devices setting. Please note, that you also need to exclude from the configuration of an external DHCP server all MAC addresses starting with 00:08:5D. 4. Confirm with Apply. By activating the limitation to specific devices, only known devices can get a DHCP answer. For this, the IP address is taken from the address range used for dynamic address allocation. If you setup a new VoIP device, it is sufficient to enter only the MAC address. 95