56 FTP Port NumberSpecify the FTP port number to be used.Note:The following port numbers and the port numbersused for the HTTP port and for the site alarm settingare unavailable for the FTP port number.20, 23, 25, 42, 53, 67, 68, 69, 79, 80, 105, 110, 123,161, 162, 546, 547, 995, 10001, 10002, 10003,10004, 10005, 10006, 10007 Port SetupPerform the settings for the following items for eachport.[DHCP]Select "ON" or "OFF" to determine whether or not to usethe DHCP server. Select "ON" to obtain an IP address,a subnet mask and a gateway from the DHCP server.Set to "OFF" when entering the addresses above manu-ally.ON: Uses the DHCP server.OFF: Does not use the DHCP server.Default: OFFImportant:• A different subnet should be set for each port.• When "ON" is selected for "DHCP" and the record-ing rate setting for "SD MEMORY REC" is config-ured, an error may occur in the process of the start-up of the unit when a request to write onto the SDmemory card is made.This will happen when response from the DHCPserver takes time. However, this error will be correct-ed once an address is provided to the unit.[IP Address]When "OFF" is selected for "DHCP", enter an IPaddress.For this unit, enter 4 units from the decimal numbers (0-255) according to the network configuration.[Subnet Mask]Enter a subnet mask according to the network configu-ration when "OFF" is selected for "DHCP".[Gateway]Enter the IP address of the gateway according to thenetwork environment when "OFF" is selected for"DHCP".[Line Speed]The following are available for "Line Speed".AUTO: Line speed will be applied automatically.10-HALF: 10 Mbps semi duplex10-FULL: 10 Mbps full duplex100-HALF: 100 Mbps semi duplex100-FULL: 100 Mbps full duplexImportant:The line speed settings should be the same betweenthe unit and the hub.(Recommended line speed: 100Mbps-FULL)For example, when 100Mbps-FULL and 100Mbps-HALF are set for the recorder and the hub respec-tively, display/recording/playback of images may notbe performed correctly.Note:When the setup menu is closed after changing theline speed, the unit will automatically restart.Important:A different subnet should be set for each port. DNS SetupSelect "MANUAL" or "AUTO" to enable IP addresssearching by the host name using the DNS. Select"OFF" when not using the DNS.Selecting "AUTO" is available only when "ON" is select-ed for "DHCP" (using the DHCP server).Selecting "MANUAL" is available regardless of the set-ting for "DHCP" (with or without using the DHCP serv-er).When "MANUAL" is selected for the DNS, enter theDNS server addresses in "Primary" and "Secondary".Enter 4 units from the decimal numbers (0-254).[Domain Name]Enter the domain name of this unit. Enter up to 255alphanumeric characters including hyphens (-) and peri-ods (.).Note:The first character of the domain name should be analphabetical character.