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
longer have access to network resources. The LTE Device is pre-configured to automatically
detect and thwart all known DoS attacks.
Firewall
The LTE Device's firewall feature physically separates the LAN/WLAN and the WAN and
acts as a secure gateway for all data passing between the networks.
It is designed to protect against Denial of Service (DoS) attacks when activated. The LTE
Device's purpose is to allow a private Local Area Network (LAN) to be securely connected to
the Internet. The LTE Device can be used to prevent theft, destruction and modification of
data, as well as log events, which may be important to the security of your network.
The LTE Device is installed between the LAN/WLAN and the connection to the Internet. This
allows it to act as a secure gateway for all data passing between the Internet and the LAN..
The LTE Device's PoE (Power over Ethernet) Ethernet WAN port and Ethernet LAN ports
physically separate the network into two areas. The WAN (Wide Area Network) port attaches
to the ODU for the Internet connection.
The LAN (Local Area Network) port attaches to a network of computers, which needs
security from the outside world. These computers will have access to Internet services such as
e-mail, FTP and the World Wide Web. However, "inbound access" is not allowed (by default)
unless the remote host is authorized to use a specific service.
NOTE
Enabling the firewall may impact the system performance.
ICMP
Internet Control Message Protocol (ICMP) is a message control and error-reporting protocol
between a host server and a gateway to the Internet. ICMP uses Internet Protocol (IP)
datagrams, but the messages are processed by the TCP/IP software and directly apparent to
the application user.
Finding Out More
10.6 Firewall Technical Reference
for more information on firewall.
10.2 The General Screen
Use this screen to enable or disable the LTE Device's firewall. Click
Security > Firewall
to
open the
General
screen.
LTE CPE B2368
User Guide
10 Firewall
Issue 03 (2019-01-31)
Copyright © Huawei Technologies Co., Ltd.
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