- 241 -51243Convenient printfunctions Appendix IndexChecking andChanging PrinterSettings Usingthe Control PanelNetworkSetupMatchingColorsUsing UtilitySoftwareSetting the network from the web browserEncryptingcommunications (IPSec)Manipulation prevention and encryption betweenthe PC (client) and printer are possible at thenetwork level.Memoz The IKE protocol supported by the device is "IKEv1".The communications mode supported by the device is"Transport mode". "Tunnel mode" is not operational.If IPSec is enabled, printer response may be slowdepending on the network communications status.Notez IPSec cannot operate with mail sending functions andSNMP Trap functions. Setup flowSet up the printer before setting the PC. Printer setupUse the web, and follow the procedure to enableIPSec.1 Log in as an administrator.Referencez See “Logging in as an administrator” (P.232).2 Click [Admin Setup]>[NetworkSetup]>[Security] tab.3 Click the [IPSec] tab.4 Enable [IPSec] in "STEP1".Notez When IPSec is "Enable", communications fromthe PC with the IP address set in "STEP2" will beencrypted.z If IPSec settings fail because the set parameters andPC do not match, etc., opening the web page will bedisabled. In this case, either disable [IPSec] in thenetwork settings from the device control panel, ordisable IPSec by implementing network initialization.5 Enter the host IP address in "STEP2".Notez Use the IP address to specify the host thatauthorizes the printing and setup.z For the IPv4 address, use single-byte numbersseparated by "."z For the IPv6 global address, use single-bytealphanumerics separated by "." Abbreviatednotations cannot be used.z Disabled if the IP address entered is 0.0.0.0.