37Setting Page4Administrator Password(1) [Password]Set the administrator password. Up to eight (single-byte) ASCII characters (space or printablecharacters) can be used. The factory default setting is“camera”. If the Admin Viewer, Admin Tools, etc., areconnected, terminate the connection before changingthe password.(2) [Confirm Password]Enter the same password as above for confirmation.LAN(1) [LAN Interface]Select [Auto], [Full Duplex] or [Half Duplex]. Normally[Auto] is used.(2) [Maximum Packet Size]Enter the maximum transmission unit. Normally thereis no need to change the default setting of 1500.Note• When using optical fiber or ADSL, setting the maximum packetsize to a slightly lower value may increase sending efficiency.IPv4(1) [IPv4 Address Setting Method]Select [Manual] or [Auto (DHCP)] in the addresssetting method. If [Manual] is selected, directly enterthe values according to the environment in which thecamera is used. If [Auto (DHCP)] is selected,the valueautomatically acquired from the DHCP server will beentered in [IPv4 Address], [Subnet Mask] and [IPv4Default Gateway Address].(2) [IPv4 Address]If [Manual] is specified in (1), enter a fixed IP address.(3) [Subnet Mask]If [Manual] is specified in (1), enter the designatedsubnet mask values for each network.(4) [IPv4 Default Gateway Address]Enter an appropriate value if [Manual] is specified in(1). Be sure to set when connecting the camera to adifferent subnet from that of the viewer.[Network]Setting Administrator Password, LAN, IP Address, DNS, etcThe following can be set here.• Administrator PasswordSet the administrator password.• LANSet the IP address and other items needed toestablish a LAN connection.• IPv4Set IPv4 address.• IPv6Set IPv6 address.• DNSSet the name server address, host name andDDNS registration.• SNMPConfigure the necessary settings to use SNMP.Important• To ensure system security, be sure to change theadministrator password. Do not forget the new password.• Press the reset switch to restore factory default settings if youhave forgotten the administrator password (p. 155). Note,however, that this will reset all camera settings to factorydefault settings except for date and time.Important• The camera may become inaccessible from the active webbrowser if [LAN Interface] or [Maximum Packet Size] settingsare changed. Check beforehand the precautions in“Important” in “[Reboot Item] Setting Items RequiringRebooting” (p. 70).• Set [Maximum Packet Size] to 1280 or greater if using IPv6.