Configuring IPsec Settings
For communication security, this machine supports IPsec. IPsec transmits secure data packets at the IP
protocol level using the shared key encryption method, where both the sender and receiver retain the
same key. This machine uses automatic key exchange to configure the pre-shared key for both parties.
Using the auto exchange setting, you can renew the shared key exchange settings within a specified
validity period, and achieve higher transmission security.
• When "Inactive" is specified for "Exclude HTTPS Communication", access to Web Image Monitor
can be lost if the key settings are improperly configured. In order to prevent this, you can specify
IPsec to exclude HTTPS transmission by selecting "Active". When you want to include HTTPS
transmission, we recommend that you select "Inactive" for "Exclude HTTPS Communication" after
confirming that IPsec is properly configured. When "Active" is selected for "Exclude HTTPS
Communication", even though HTTPS transmission is not targeted by IPsec, Web Image Monitor
might become unusable when TCP is targeted by IPsec from the computer side.
• If you cannot access Web Image Monitor due to IPsec configuration problems, disable IPsec in
System Settings on the control panel, and then access Web Image Monitor.
• For details about enabling and disabling IPsec using the control panel, see "Interface Settings",
Connecting the Machine/ System Settings.
• IPsec is not applied to data obtained through DHCP, DNS, or WINS.
Supported operating systems
Operating systems Note
• Windows Server 2003/2003 R2 IPsec over IPv4 can be used.
• Windows Vista/7/8/8.1
• Windows Server 2008/2008 R2/2012/2012 R2
• Mac OS X 10.4.8 or later
• Red Hat Enterprise Linux WS 4.0
• Solaris 10
IPsec over both IPv4 and IPv6
can be used.
Some setting items are not supported depending on the operating system. Make sure the IPsec settings
you specify are consistent with the operating system's IPsec settings.
Encryption and Authentication by IPsec
IPsec consists of 2 main functions: the encryption function, which ensures data confidentiality, and the
authentication function, which verifies the sender of the data and the data's integrity. This machine's IPsec
Configuring IPsec Settings
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