7. Click [OK].
8. Select [Active] for "IPsec" in "IPsec".
9. Set "Exclude HTTPS Communication" to [Active] if you do not want to use IPsec for HTTPS
transmission.
10. Click [OK].
11. Click [OK].
12. Click [Logout].
• To change the transmission partner authentication method for encryption key auto exchange settings
to "Certificate", you must first install and assign a certificate. For details about creating and installing
a device certificate, see p.89 "Using S/MIME to Protect E-mail Transmission".
Selecting the Certificate for IPsec
This can be specified by the network administrator.
Using Web Image Monitor, select the certificate to be used for IPsec. You must install the certificate before
it can be used.
1. Open a Web browser.
2. Enter "http://(the machine's IP address or host name)/" in the address bar.
3. Click [Login].
The network administrator can log in.
Enter the login user name and login password.
4. Click [Configuration], and then click [Device Certificate] under "Security".
5. Select the certificate to be used for IPsec from the drop down box in "IPsec" under
"Certification".
6. Click [OK].
7. Click [OK].
8. Click [Logout].
Specifying IPsec Settings on the Computer
Specify exactly the same settings for IPsec SA settings on your computer as are specified by the machine's
security level on the machine. Setting methods differ according to the computer's operating system. The
example procedure shown here uses Windows XP when the Authentication and Low Level Encryption
Security level is selected.
7. Enhanced Network Security
178
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