Hotbrick VPN 800/8 F User Manual download pdf (Page 43)

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Port Blocking – There are two possible settings :



No Filtering - all ports are open



Block All Access – All ports are closed. When you make a new rule, the port will be

opened for that entry (maximum number of rules you enter are 50 ).

 Filter Name – Enter a meaningful name for this filter.



Protocol Type – Select a protocol type you wish to block.

 Port No. Range – Enter the range of port numbers you wish to block. If only a single

port is required, enter it in both fields.

Security Management - Session Limit

This new feature allows you to drop new sessions from both the WAN and LAN side. This occurs when

the number of new sessions exceeds the maximum value set by you in a sampling time.

 Sampling time - The time interval specified by you to count the new sessions. Only new

sessions are counted in the sampling time to check. (The default is 400 mil-sec.)

 Maximum total of new sessions - The maximum number of new sessions in the

system that is acceptable in the sampling time. Any new incoming sessions will be

dropped after the number of new sessions exceeds it. (Default: 65535 session/sec)



Maximum new Sessions for Host - The maximum number of new sessions from the host

that is acceptable in the sampling time. Any new incoming sessions will be dropped from

this host after the number of new sessions exceeds it. (Default: 100 session/sec)

 Maximum dropped sessions for host - If the number of dropped new sessions from the

host exceeds the Maximum in the sampling time, any new session from the host will be

dropped in the pause time period. (Default: 25 session/sec)

 Pause time for host while exceeding limit on dropped new sessions - Within the pause

time period, no new session from the suspended host can be served by the system when the

number of dropped new sessions exceeds the defined Maximum. (Default is 5 minutes)

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Hotbrick VPN 800/8 F User Manual Page 43