Secure Computing SG550 Manual do Utilizador descarregar pdf (Página 141)

Firewall

137

• Input means filter packets destined for this unit. You can only select the incoming

interface.

• Output means filter packets generated by this unit. You can only select the

outgoing interface.

The Incoming Interface is the interface/network port that the SG unit received the

network traffic on. Set this to None to match traffic destined for the SG unit itself.

The Outgoing Interface is the interface/network port that the SG unit routes the network

traffic out. Set this to None to match traffic originating from the SG unit itself.

The Source Address is the address that the traffic is arriving from.

The Destination Address is the address that the traffic destined to.

Warning

The previous four fields may be set to Any. Any does not match traffic sent or received

by the SG unit itself, only traffic passing through it.

The four fields above may also be set to None or Any. None matches requests

originating from the Cyber

None matches network traffic that is destined for the SG unit itself. This is useful for

controlling access to services provided by the SG unit, such as the web management

console.

Note

When adding a rule, you may either use Predefined addresses or services that have

been added under Definitions, or click New to manually enter an address or service.

The Log option controls whether to log the first packet of the connection to the SG unit’s

system log. You may enter a Log Prefix to make it easier to identify which rules are

being matched when inspecting the system log.

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Secure Computing SG550 Manual do Utilizador Página 141