Digi IX20-WAG4 User Manual page 500

Services
5. (Optional) Configure the access control list to limit downstream access to the IX20 device's
NTP service.
To limit access to specified IPv4 addresses and networks:
n
(config)> add service ntp acl address end value
(config)>
Where value can be:
l
l
l
Repeat this step to list additional IP addresses or networks.
To limit access to specified IPv6 addresses and networks:
n
(config)> add service ntp acl address6 end value
(config)>
Where value can be:
l
l
l
Repeat this step to list additional IP addresses or networks.
To limit access to hosts connected through a specified interface on the IX20 device:
n
(config)> add service ntp acl interface end value
(config)>
Where value is an interface defined on your device.
Repeat this step to list additional interfaces.
IX20 User Guide
A single IP address or host name.
A network designation in CIDR notation, for example, 192.168.1.0/24.
any: No limit to IPv4 addresses that can access the NTP server agent.
A single IP address or host name.
A network designation in CIDR notation, for example, 2001:db8::/48.
any: No limit to IPv6 addresses that can access the NTP server agent.
Display a list of available interfaces:
Use ... network interface ? to display interface information:
(config)> ... network interface ?
Interfaces
Additional Configuration
-------------------------------------------
defaultip
defaultlinklocal
eth1
eth2
loopback
modem
(config)>
Default IP
Default Link-local IP
ETH1
ETH2
Loopback
Modem
Network Time Protocol
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