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What is the default action for the input chain?
The default policy is the action that is performed on the packet when no rule with a terminating target has matched. A terminating target is one that stops further processing of the rules in the current top-level chain. For example, targets like ACCEPT or DROP are terminating, while LOG is not.
What iptables option is used to set the default policy of a chain?
-P — Sets the default policy for the specified chain, so that when packets traverse an entire chain without matching a rule, they are sent on to the specified target, such as ACCEPT or DROP. -R — Replaces a rule in the specified chain. The rule’s number must be specified after the chain’s name.
How to enable or disable implicit rules in smartconsole?
The implicit rules do not show in the Rule Base. Some of the implied rules are enabled by default. You can change the default configuration as necessary. To configure the implied rules: In SmartConsole, from the Menu, select Global Properties. The Global Properties window opens. Select a rule to enable it, or clear a rule to disable it.
How does implicit rule work in r77.30 Security Gateway?
For R77.30 or earlier versions Security Gateways, the action of the implicit rule depends on the Policy Layer: Note – If you change the default values, the policy installation will fail. The implicit rules do not show in the Rule Base.
What happens when a packet arrives at a gateway?
When a packet arrives at the gateway, the gateway checks it against the rules in the top Policy Layer, sequentially from top to bottom, and enforces the first rule that matches a packet. If the Action of the matching rule is Drop, the gateway stops matching against later rules in the Policy Rule Base and drops the packet.
Which is rule allows any program to listen on a specified port?
This type of rule allows any program that listens on a specified TCP or UDP port to receive network traffic sent to that port. Administrative credentials. To complete these procedures, you must be a member of the Domain Administrators group, or otherwise be delegated permissions to modify the GPOs.