N

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Network Address Translation - permits the mapping of a specific IP address used within a network to another IP address used by another network. This function is e. g. performed by a router which connects a local area network to the Internet.

Method to establish and hold communication connections that allows IPsec-encrypted data packets to pass trough NAT transition points.

Provides the net mask for the IP address and specifies how many IP addresses are released in a network range. The larger the network prefix, the fewer the number of IP addresses that are released.

Example: IP address 192.196.0.240


Network prefix	Released address range
8 bit	192.x.x.x
16 bit	192.168.x.x
24 bit	192.168.0.x
32 bit	192.168.0.240 (= Only the explicitly entered IP address is released.)

Network Time Protocol - protocol that synchronises the time on a computer or on other devices in the network with other computers or with an external clock via the Internet. An NTP server is selected to perform the time synchronisation. The time provided by the NTP server is synchronised as exactly as possible to Coordinated Universal Time (UTC).

If a local NTP server is available in a local network, it can be selected, or a public NTP server from a public list on the Internet can be used.

COMfortel 1400 IP/2600 IP/3600 IP - Firmware V2.8 - Advanced Information V08 12/2020