Services Network Time Protocol
IX10 User Guide
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3. Click Services > NTP.
4. Enable the IX10 device's NTP service by clicking Enable.
5. (Optional) Configure the access control list to limit downstream access to the IX10 device's
NTP service.
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To limit access to specified IPv4 addresses and networks:
a. Click IPv4 Addresses.
b. For Add Address, click .
c. For Address, enter the IPv4 address or network that can access the device's NTP
service. Allowed values are:
l
A single IP address or host name.
l
A network designation in CIDR notation, for example, 192.168.1.0/24.
l
any: No limit to IPv4 addresses that can access the NTP service.
d. Click again to list additional IP addresses or networks.
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To limit access to specified IPv6 addresses and networks:
a. Click IPv6 Addresses.
b. For Add Address, click .
c. For Address, enter the IPv6 address or network that can access the device's NTP
service. Allowed values are:
l
A single IP address or host name.
l
A network designation in CIDR notation, for example, 2001:db8::/48.
l
any: No limit to IPv6 addresses that can access the NTP service.
d. Click again to list additional IP addresses or networks.
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To limit access to hosts connected through a specified interface on the IX10 device:
a. Click Interfaces.
b. For Add Interface, click .
c. For Interface, select the appropriate interface from the dropdown.
d. Click again to allow access through additional interfaces.
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To limit access based on firewall zones:
a. Click Zones.
b. For Add Zone, click .