PointRed Telecom Ltd. MCRD-2458 Manuale Utente
M i c r o R e d & M i c r o V i e w N M S U s e r M a n u a l v 1 . 0
Page 59
Figure 56. Packet Flow Diagram
6.2.
Configuring Firewall Rules
Rules are entries in a chain consisting of several fields (criteria) that can be used
to match a data packet. If all criteria are met, the rule is matched and the packet
leaves the chain, launching the action of the matching rule.
to match a data packet. If all criteria are met, the rule is matched and the packet
leaves the chain, launching the action of the matching rule.
From the Firewall tab you can
x
Select Chains
x
Set up Policy
x
Add, Delete and Manage Firewall Rules and Flowmarks
x
Write rules to the active list
x
Refresh the displayed information
Figure 57. Firewall Chains
Before configuring a rule, you must Select Chain and set the Policy.
Select Chain
In the Select Chain drop down list, select Input, Output or Forward.
Policy
In the Policy drop down list, select Accept or Drop.
Accept - The packet will flow to the next chain, leaving the current chain
at this rule (no further rules in this chain are further examined),
Drop – The packet stops flowing, is discarded, without notifying the
sender.
at this rule (no further rules in this chain are further examined),
Drop – The packet stops flowing, is discarded, without notifying the
sender.