User`s manual

OnCell G3111/G3151/G3211/G3251 Series User’s Manual System Management Settings
12-2
Misc. Network Settings
Accessible IP List
The OnCell G3111/G3151/G3211/G3251 uses an IP address-based filtering method to control
access to its serial ports.
The Accessible IP list allows you restrict network access to the OnCell G3111/G3151/G3211/G3251.
Access is controlled by IP address. When the accessible IP list is enabled, a host’s IP address must be
listed in order to gain access to the OnCell G3111/G3151/G3211/G3251. You may add a specific
address or range of addresses by using a combination of IP address and netmask, as follows:
To allow access to a specific IP address
Enter the IP address in the corresponding field; enter 255.255.255.255 for the netmask.
To allow access to hosts on a specific subnet
For both the IP address and netmask, use 0 for the last digit (e.g., 192.168.1.0 and 255.255.255.0).
To allow unrestricted access
Deselect the Enable the accessible IP list option.
Refer to the following table for more configuration examples.
Allowed hosts
Entered IP address/Netmask
Any host
Disable
192.168.1.120
192.168.1.120 / 255.255.255.255
192.168.1.1 to 192.168.1.254
192.168.1.0 / 255.255.255.0
192.168.0.1 to 192.168.255.254
192.168.0.0 / 255.255.0.0
192.168.1.1 to 192.168.1.126
192.168.1.0 / 255.255.255.128
192.168.1.129 to 192.168.1.254
192.168.1.128 / 255.255.255.128