User manual

KVM over IP Module
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Chain rule
The Chain rule determines whether the access from the hosts is allowed or not. It can be
one of these two values:
ACCEPT : access allowed
DROP : access not allowed
The rule can be configured to apply to a particular Group level (All, User, Super,
Administrator).
When the IP-KVM receives a TCP packet, it will process the packet with the chain rule
depicted below. The process ordering is important; The packet will enter the chain rule 1
first, if meet the rule then take action directly, otherwise go to chain rule 2.
TCP packet
Rule 1
Yes
Action 1
No
Rule 2
Yes
Action 2
No
Rule ..
Yes
Action 3
No
Rule n
Yes
Action 4
No
Default Rule
Yes
Action 5
Figure 5-22 Chain Rules of IP Filtering
Check the “Enable Group based System Access Control” to edit the rules
Users can add a new IP filtering rule by setting the properties at adding line by Append
or Insert. User can remove a rule by Remove or Delete.