WS-431E
4G Router
www.waveshare.com
39 / 68
Communication rules can selectively filter specific Internet data types and prevent Internet
access requests, and enhance network security through these communication rules. Firewall has
a wide range of applications. Here are some common applications.
Name
Description
Default parameter
name
Name and character type of this rule
-
Restricted address
Restrict IPv4 address
IPv4 address only
Protocol
The protocol type of the restriction rule
can
be
selected
from:
TCP+UDP/TCP/UDP/ICMP
TCP+UDP
Matching ICMP type
Matching ICMP rules, just select any.
Any
Source region
Data stream source area, optional: any
area, WAN, LAN.
LAN: indicate that rules for subnet
access to external network.
WAN: indicates the rules for external
network to access internal network.
LAN
Source MAC address
The source MAC that needs to match
the rule can be multiple Macs. When
there are multiple Macs, the Macs are
separated by spaces.
Empty: indicates that all Macs are
matched.
Note: When matching the source MAC
address, the source IP address should
be set to empty.
empty
Source IP address
The source IP that needs to match the
rule can be an IP range.
Example
of
IP
range:
192.168.1.100-192.168.1.200
Empty: indicates that all IPS are
matched.
Note: When matching the source IP
address, the source MAC address
should be set to empty.
empty
Source port
The source port that needs to match
the rule can be a port range.
Example of port range: 8000-9000
Empty: means to match all ports.
empty
Target area
Target area of data flow, optional: any
area, WAN, LAN.
LAN: indicate that rules for subnet
access to external network.
WAN
