Acl (Access Control List) Setting; Sntp Setting - Huawei EchoLife HG520 User Manual

4.4.4 ACL (Access Control List) Setting

We may configure ACL on HG520 to avoid any unauthorized user
to control the device. ACL keeps the records of the unique
authentication code, limit of authority, and expiry of such
authentication of the authorized user. With this feature configured,
HG520 will only allow the access of authorized user and avoid any
illegal access.
Enter the IP addresses of the LAN port and select Enable, these
IP addresses will be allowed to access the services listed on the
Service Control List. You can also control the access from the WAN
port to HG520 by repeating the same procedure.

4.4.5 SNTP Setting

NTP (Network Time Protocol) is a time protocol used to
synchronize the time display of different computers in the same
network. SNTP (Simple Network Time Protocol) is a simplified NTP,
which remove the unnecessary internal algorithm in the servers.
Just use the factory default settings of NTP during the selection of
the first and second NTP time server.
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