426 V7122 GatewayUser GuideIf ARP Manipulation is enabled, the following two commands are available. Reply Type: Reply to a BootRequest can be either Broadcast or Unicast. The defaultfor the BootP Tool is Broadcast. In order for the reply to be set to Unicast, ARPManipulation must first be enabled. This then enables the BootP Tool to find the MACaddress for the client in the ARP cache so that it can send a message directly to therequesting device. Normally, this setting can be left at Broadcast. ARP Type: The type of entry made into the ARP cache on the computer, once ARPManipulation is enabled, can be either Dynamic or Static. Dynamic entries expire aftera period of time, keeping the cache clean so that stale entries do not consume computerresources. The Dynamic setting is the default setting and the setting most often used.Static entries do not expire. Number of Timed Replies: This feature is useful for communicating to VoIP gatewaysthat are located behind a firewall that would block their BootRequest messages fromgetting through to the computer that is running the BootP Tool. You can set this value toany whole digit. Once set, the BootP Tool can send that number of BootReply messagesto the destination immediately after you send a remote reset to a VoIP gateway at a validIP address. This enables the replies to get through to the VoIP gateway even if theBootRequest is blocked by the firewall. To turn off this feature, set the Number of TimedReplies = 0.TFTP Preferences Enabled: To enable the TFTP functionality of the BootP Tool, select the check box. Ifyou want to use another TFTP application, other than the one included with the BootPTool, unselect the box. On Interface: This pull down menu displays all network interfaces currently available onthe computer. Select the interface that you want to use for the TFTP. Normally, there isonly one choice. Directory: This option is enabled only when the TFTP is enabled. Use this parameter tospecify the folder that contains the files for the TFTP utility to manage (cmp, ini, CallProgress Tones, and the like). Boot File Mask: Boot File Mask specifies the file extension used by the TFTP utility forthe boot file that is included in the BootReply message. This is the file that contains VoIPgateway software and normally appears as cmp. ini File Mask: ini File mask specifies the file extension used by the TFTP utility for theconfiguration file that is included in the BootReply message. This is the file that containsVoIP gateway configuration parameters and normally appears as ini. Timeout: This specifies the number of seconds that the TFTP utility waits beforeretransmitting TFTP messages. This can be left at the default value of 5 (the morecongested your network, the higher the value you should define in these fields). Maximum Retransmissions: This specifies the number of times that the TFTP utilitytries to resend messages after timing out. This can be left at the default value of 10 (themore congested your network, the higher the value you should define in these fields).
