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HUAWEI Firewall Comprehensive Configuration Examples

This document describes the application scenarios and configuration methods in typical projects of the firewall.
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Solution Overview

Solution Overview

A broadcast and television network provides home broadcast and television services. It also leases links from ISPs to provide access services, such broadband Internet access and hosted servers. At the network egress, a firewall is usually deployed as an egress gateway to provide Internet access and security assurance.

Figure 2-1  Application of firewalls at the egress of a broadcast and television network

As shown in Figure 2-1, a firewall is deployed at the network egress to provide the following functions:

  • NAT: The firewall provides a source NAT function to translate the private IP address of a broadband user to a public IP address. It also functions as a NAT server to translate the private IP address of a hosted server to a public IP address for access of external users.
  • Intelligent uplink selection (multi-ISP): The firewall provides multiple uplink selection modes, such as destination IP address-based and application-based, using multiple ISP links to ensure the Internet access quality.
  • Security management: The firewall isolates security zones using security policies and provides security protection using such functions as intrusion prevention and Anti-DDoS.
  • Source tracing and audit: The firewall logs pre-NAT and post-NAT IP addresses and the online and offline activities of IM users for audit and source tracing.
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Updated: 2019-01-26

Document ID: EDOC1100062972

Views: 18317

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