KB.15.15

Table 44 Analysis of IP Mask for Single-Station Entries (continued)

Manager-Level or Operator-Level Device Access4th Octet3rd Octet2nd Octet1st Octet

authorized IP address settings for the fixed bits is allowed

for the purposes of IP management station access to the

switch. Thus, any management station having an IP

address of 10.28.227.121, 123, 125, or 127 can

access the switch.

Figure 308 How the Bitmap in the IP Mask Defines Authorized Manager Addresses

Table 45 Additional examples for authorizing multiple stations

ResultsEntries for authorized manager list

This combination specifies an authorized IP address of

10.33.xxx.1. It could be applied, for example, to a

2550255255IP mask

12483310Authorized

manager IP

subnetted network where each subnet is defined by the

third octet and includes a management station defined

by the value of "1" in the fourth octet of the station's

IP address.

Allows 230, 231, 246, and 247 in the 2nd octet, and

194, 195, 198, 199 in the 4th octet.

250255238255IP mask

19510024710Authorized

manager IP

Overview

The Authorized IP Managers feature uses IP addresses and masks to determine which stations (PCs

or workstations) can access the switch through the network. This covers access through the following

means:

• Telnet and other terminal emulation applications

• The WebAgent

• SSH

• SNMP versions 1, 2 and 3(with a correct community name)

• TFTP

418 Authorized IP Managers