Firewall; Overview; What You Need To Know - Huawei B2268H User Manual

LTE TDD B2268H
User Guide

10.1 Overview

Use the LTE Device firewall screens to enable and configure the firewall that protects your LTE
Device and network from attacks by hackers on the Internet and control access to it. By default
the firewall:


The following figure illustrates the default firewall action. User A can initiate an IM (Instant
Messaging) session from the LAN to the WAN (1). Return traffic for this session is also allowed
(2). However other traffic initiated from the WAN is blocked (3 and 4).
Figure 10-1 Default Firewall Action

10.1.1 What You Need to Know

DoS
Denials of Service (DoS) attacks are aimed at devices and networks with a connection to the
Internet. Their goal is not to steal information, but to disable a device or network so users no
Issue 01 (2014-01-15)
Allows traffic that originates from your LAN and WLAN computers to go to all other
networks.
Blocks traffic that originates on other networks from going to the LAN and WLAN.
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Firewall

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