Steps
1.
On the navigation tree, click [Security→ Service Control]. The service control configuration
page is displayed, see Figure 39. On this page, you can permit or discard the specified inbound
access services by configuring the source IP address range and service types
Figure 39 Service Control
Table 28 lists the service control parameters.
Table 28 Service Control Parameters
Select the Enable check box to enable the service control
settings.
Specify the data stream inbound direction, and this parameter
must be specified.
If the Ingress is LAN, the data flow is upstream.
If the Ingress is a WAN or 3G_PPPoE connection, the data
flow is downstream.
Start Source IP Address/End
Source IP Address
The IP address segment that needs to be filtered
When the IP segment is null, it refers to all the IP addresses.
The mode includes the following:
Discard
Permit
Specify the service that is permitted or denied to access.
2.
Configure the service control parameters, and then click Add.
3.
(Optional) Modify the remote access port of the specified service.