The firewall matches the traffic against security policies from top In ascending order by creation time, and the newest security policy Security policies created by users are displayed from top to bottom The default policy is always at theĮnd of a policy list and cannot be deleted. Has a default security policy named default, which blocks all Security zone indicates that only the network connected to the interface The firewall itself is in the local zone. To which zones the firewall and external networks belong, note that Policies from the local zone to other security zones.
#How to configure huawei router update
When the firewall reports logs to a log server or connects to a securityĬenter to update signature databases, you need to configure security Proactively accesses objects in other security zones, for example, Policy for the Trust zone to access the local network.
#How to configure huawei router Pc
PC in the Trust zone logs in to the firewall and configures a security This section will describe local security policies, that is, security Table 1-1 Configurations of the firewall-based security policy and local security In thisĬase, you need to configure security policies for the two types of
Through Telnet and access the Internet through the firewall. In Figure 1-5, an intranet PC needs to log in to and manage the firewall Received by a firewall are controlled by security policies. Passing through a firewall, traffic sent by a firewall, and traffic More matching conditions, such as application and user identification. To configure security policies more accurately, you add IP addresses, source and destination ports, and protocol) as matchingĬonditions. You can use only the 5-tuple (source and destination Matching conditions in a security policy will more accurately filter If multiple values are configured in a matching condition, That is, traffic is considered to matchĪ security policy only when it matches all conditions in the security Configured matchingĬonditions are bitwise ANDed. Matching condition is optional in a security policy. Figure 1-2 shows the relationships between the interface, network, and security zone.įigure 1-4 Security policy composition and web UI Therefore, it is recommended that security zones be used for refined network partitioning.Īdding an interface to a security zone means that the network connected to the interface is added to the security zone, not the interface itself. To be specific, if a subnet is intruded, attackers can access only resources in a security zone corresponding to the subnet. Once security zones are defined, traffic cannot flow between security zones unless the administrator specifies valid access rules. Security zones are designed to reduce network attack surfaces. Interfaces on the firewall must be added to security zones (except independent management interfaces on some models) to process traffic. By assigning firewall interfaces to different security zones, the networks connected to the interfaces are classified into different security levels. A firewall identifies different networks by security zone. As mentioned, firewalls are used to isolate networks of different security levels.
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