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vii

Restoring the Factory Default Configuration . . . . . . . . . . . . . . . . 2-36

Configuring Front-Panel Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37

Disabling the Clear Password Function of the Clear Button . . . 2-40

Re-Enabling the Clear Button and Setting or

Changing the “Reset-On-Clear” Operation . . . . . . . . . . . . . . . . . . 2-41

Changing the Operation of the Reset+Clear Combination . . . . . 2-42

Password Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44

Disabling or Re-Enabling the Password Recovery Process . . . . . . . . 2-44

Password Recovery Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46

3 Virus Throttling (Connection-Rate Filtering)

Overview of Connection-Rate Filtering . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

General Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Filtering Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Sensitivity to Connection Rate Detection . . . . . . . . . . . . . . . . . . . . 3-4

Application Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Operating Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Unblocking a Currently Blocked Host . . . . . . . . . . . . . . . . . . . . . . 3-6

General Configuration Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

For a network that is relatively attack-free: . . . . . . . . . . . . . . . . . . . . . 3-7

For a network that appears to be under significant attack: . . . . . . . . . 3-8

Configuring Connection-Rate Filtering . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Global and Per-Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Enabling Connection-Rate Filtering and Configuring

Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Configuring the Per-Port Filtering Mode . . . . . . . . . . . . . . . . . . . 3-11

Example of a Basic Connection-Rate Filtering Configuration . . 3-12

Viewing and Managing Connection-Rate Status . . . . . . . . . . . . . . . . . 3-14

Viewing Connection-Rate Configuration . . . . . . . . . . . . . . . . . . . 3-14

Listing Currently-Blocked Hosts . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Unblocking Currently-Blocked Hosts . . . . . . . . . . . . . . . . . . . . . . 3-16

Configuring and Applying Connection-Rate ACLs . . . . . . . . . . . . . . 3-18

Connection-Rate ACL Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

HP J8693A User Manual

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