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1. Choose Security > IP Filtering.
2. Set IP filtering mode to Whitelist.
3. Click Delete All.
4. Click OK.
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6.4.2 Managing IP Blacklist
Choose Security > IP Filtering, and then set IP filtering mode to Blacklist.
The other steps are the same as those for managing the IP address whitelist. For details, see
section "Managing IP Address Whitelist".
6.5 Setting Service Access Control
This function enables you to control the number of users connecting to the CPE.
The access control list shows the types of services that are controlled by the CPE. By default,
the access control rules are not in effect.
To set the access control list, perform the following steps:
1. Choose Security > Service Access Control.
2. Choose the item to be configured, and click Edit.
3. Set IP address range.
If Access Source is set to LAN, the IP address must be on the same network
segment as the IP address set on the LAN Host Settings page.
If Access Source is set to Internet, the IP address must be on different network
segments from the IP address that is set on the LAN Host Settings page.
4. Set Status.
5. Click Submit.
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6.6 Setting ALG
To enable ALG(Application Layer Gateway), perform the following steps:
1. Choose Security > ALG.
2. Set SIP ALG to Enable.
3. Set SIP port.
It is recommended to retain the default port 5060. If you use another port, you
cannot use VoIP software.
