Operation Manual

COMfortel 1400IP/2600IP/3600IP - Firmware V2.2G - Operation and Configuration V03 07/2015 551
Settings
Network
Configuring an IP Whitelist
4. Tap on OK.
5. Tap on Network prefix (CIDR) and enter the network prefix. Possible entries:
Notes:
The telephone supports the IPv4 Internet protocol, with a prefix length of 0
to 32 bits. The network prefix 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:
Important: Only release as many IP address ranges as necessary. The
larger the released address range, the greater the danger of attacks.
6. Tap on OK.
7. Tap on Confirm.
Note: To delete an IP address from the IP whitelist, touch and hold the
required IP address and then tap on Delete.
IP address with a range of 0 to 255 (example: 192.168.0.240)
Network prefix with ranges of 0 to 32
IP address: 192.196.0.240
Network
prefix
Released address range
8 192.x.x.x
16 192.168.x.x
24 192.168.0.x
32 192.168.0.240 (only the explicitly entered IP address is
released.)