network access control 快速解答

Girl2

正在设置一台 九千年旧的网络Scanner RICOH Aficio IS330DC （别小看它，现在还值不少银子）。
其中要设 access control, 该是旧设备才有的吧，头有点大，求助！
假如：

scanner ip: 192.168.16.207
sub: 255.255.255.0
default gateway: 192.168.16.2
what will access control be ? 192.168.16.2 or the ip address of a PC to access it?



Network Access Control (NAC) is an approach to computer network security that attempts to unify endpoint security technology (such as antivirus, host intrusion prevention, and vulnerability assessment), user or system authentication and network security enforcement.

Girl2

谢谢曾经关注过的朋友! 我已经接近真相.

Access Control Address / Access Control Mask
When an IP address is used and the number of workstations which can use the scanner must be limited, the access control address and the access control mask can be used.
Using the concept of subnets, the computers allowed access to the printers can be limited by using the Access Control Mask. See the table below for an example when 192.168.15.16. is assigned to the Network Interface Board as the Access Control Address..

Access Control Mask	Address with access
0.0.0.0	xxx.xxx.xxx.xxx
255.0.0.0	192.xxx.xxx.xxx
255.255.0.0	192.168.xxx.xxx
255.255.255.0	192.168.15.xxx
255.255.255.255	192.168.15.16

If the access control mask is "0.0.0.0", all work stations have access.

Kagami

what will access control be ? 192.168.16.2 or the ip address of a PC to access it?
192.168.16.2是网关，从这类设置看本区域的其它机器通过该主机代-理连出，网络接入控制所限制的对象应该是192.168.16.207，用ip掩码表示即192.168.16.207/255.255.255.255，该网段则为192.168.16.0/255.255.255.0