Huawei SmartAX MT800 ADSL CPE User Manual page 48

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SmartAX MT800 ADSL CPE
Security Level: This setting determines which IP Filter
rules take effect, based on the security level specified in
each rule. For example, when High is selected, only those
rules that are assigned a security value of High will be in
effect. The same is true for the Medium and Low settings.
When None is selected, IP Filtering is disabled.
Private/Public Default Action: This setting specifies a
default action to be taken (Accept or Deny) on private or
public-type device interfaces when they receive packets
that do not match any of the filtering rules. You can specify
a different default action for each interface type. (You
specify an interface's type when you create the interface;
see the PPP configuration page, for example.)
A public interface typically connects to the Internet. PPP, EoA,
and IPoA interfaces are typically public. Packets received on a public
interface are subject to the most restrictive set of firewall protections
defined in the software. Typically, the global setting for public
interfaces is Accept, so that all accesses to your LAN initiated from
external computers are denied (discarded at the public interface),
except for those allowed by a specific IP Filter rule.
A private interface connects to your LAN, such as the Ethernet
interface. Packets received on a private interface are subject to a
less restrictive set of protections, because they originate within the
network. Typically, the global setting for private interfaces is Accept,
so that LAN computers have access to the Internet connection.
Chapter 4 Web-based Management
4-27

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