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output rule.
Deny/Permit
To select whether the current rule configuration is disabled
or allowed;
Protocol
There are four types of filtering protocols: TCP | UDP |
ICMP | IP.
Src Port Range
Filter port range
Src Address
Source address can be host address, network address, or
all addresses 0.0.0.0; It can also be a network address
like *.*.*.0, such as: 192.168.1.0.
Dst Address
The destination address can be either the specific IP
address or the full address 0.0.0.0; It can also be a
network address like *.*.*.0, such as: 192.168.1.0.
Src Mask
Is the source address mask. When configured as
255.255.255.255, it means that the host is specific. When
set as 255.255.255.0, it means that a network segment is
filtered.
Dst Mask
Is the destination address mask. When configured as
255.255.255.255, it means the specific host. When set as
255.255.255.0, it means that a network segment is
filtered.
After setting, click [
Add
] and a new item will be added in the firewall input rule, as shown
in the figure below:
Picture 33- Firewall Input rule table
Then select and click the button [
Apply
].
In this way, when the device is running: ping 192.168.1.118, the packet cannot be sent to
192.168.1.118 because the output rule is forbidden. However, other IP of the ping
192.168.1.0 network segment can still receive the response packet from the destination
host normally.
Picture 34 - Delete firewall rules
Select the list you want to delete and click [
Delete
] to delete the selected list.
