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.
1. On the [Start] menu, click [Control Panel], click [Performance and Maintenance], and then
click [Administrative Tools].
2. Click [Local Security Policy].
3. Click [IP Security Policies on Local Computer].
4. In the "Action" menu, click [Create IP Security Policy].
The IP Security Policy Wizard appears.
5. Click [Next].
6. Enter a security policy name in "Name", and then click [Next].
7. Clear the "Activate the default response rule" check box, and then click [Next].
8. Select "Edit properties", and then click [Finish].
9. In the "General" tab, click [Advanced].
10. In "Authenticate and generate a new key after every" enter the same validity period (in
minutes) that is specified on the machine in Encryption Key Auto Exchange Settings Phase
1, and then click [Methods].
11. Confirm that the combination of hash algorithm (on Windows XP, "Integrity"), the encryption
algorithm (on Windows XP, "Encryption"), and the Diffie-Hellman group settings in "Security
method preference order" match the settings specified on the machine in Encryption Key
Auto Exchange Settings Phase 1.
12. If the settings are not displayed, click [Add].
13. Click [OK] twice.
14. Click [Add] in the "Rules" Tab.
The Security Rule Wizard appears.
15. Click [Next].
16. Select "This rule does not specify a tunnel", and then click [Next].
17. Select the type of network for IPsec, and then click [Next].
18. Select the "initial authentication method", and then click [Next].
Transmission Using IPsec
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