Ricoh Aficio MP C5502 User Guide - Page 609
Encryption Key Manual Settings Configuration Flow, Specifying Encryption Key Manual Settings
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Configuring IPsec • If you specify the "Authentication and High Level Encryption" security level in "Encryption Key Auto Exchange Settings", also select the "Use session key perfect forward secrecy (PFS)" check box in the filter action properties screen. If using PFS in Windows, the PFS group number used in phase 2 is automatically negotiated in phase 1 from the Diffie-Hellman group number (set in step 11). Consequently, if you change the security level specified automatic settings on the machine and "User Setting" appears, you must set the same the group number for "Phase 1 Diffie-Hellman Group" and "Phase 2 PFS" on the machine to establish IPsec transmission. Encryption Key Manual Settings Configuration Flow Decide IPsec SA items Share IPsec SA items Set IPsec SA using Web Image Monitor Set IPsec SA using the IPsec setting tool Activate IPsec settings Activate IPsec settings Confirm IPsec transmission CJD016 • Before transmission, SA information is shared and specified by the sender and receiver. To prevent SA information leakage, we recommend that this exchange is not performed over the network. • After configuring IPsec, you can use "Ping" command to check if the connection is established correctly. However, you cannot use "Ping" command when ICMP is excluded from IPsec transmission. Also, because the response is slow during initial key exchange, it may take some time to confirm that transmission has been established. Specifying Encryption Key Manual Settings 1. Log in as the network administrator from Web Image Monitor. 2. Point to [Device Management], and then click [Configuration]. 3. Click [IPsec] under "Security". 4. Select [Active] for "Encryption Key Manual Settings". 5. Click [Edit] under "Encryption Key Manual Settings". 165
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