10
64-bits are based on the MAC address of the time server. This address is unique to each time
server and not modifiable.
3.2.7 IPv6 Temporary
This is a default address based on the network address and the MAC address. The time server
uses Neighbor Discovery Protocol to find the network address. The last 64-bits are based on the
time server’s MAC address. This address is unique to each time server and not modifiable. The
time server will default to this address to serve time if the IPv6 address has not been set,
otherwise the modifiable IPv6 address is used to serve time.
3.2.8 Mask HTTP access on Subnet
This checkbox will enable HTTP (web browser) access only on the time server’s configured
subnet. This has the effect that the time server will only respond to requests for the web page if
they come from the same subnet as the time server is configured on. This is a security feature to
limit the access to the configuration of the device only to the local subnet.
3.2.9 Mask NTP access on Subnet
This checkbox will enable NTP access only on the time server’s configured subnet. This allows
the time server to ignore requests for time from all devices that are not on the same subnet and
provides a measure of security and protection from denial of service attacks.
3.2.10 Netmask
The Netmask entry determines what addresses are on the local network and what addresses are
reached through the Gateway. Typical Netmasks are 255.255.0.0 or 255.255.255.0. Consult the
network administrator for more information on who this entry should be set.
3.2.11 Gateway
The Gateway IP address is used when a destination address is determined to not be on the local
network. Consult the network administrator for this setting.
3.2.12 MAC
This is an information only field and displays the MAC address of the Time Server.
3.2.13 Echo GPS Strings Checkbox
