For our third-generation units such as Sonoma, Meridian II, Tycho II, Ninja, RTM3205 and e-Series Distribution Chassis run the command below to invoke interactive script:

accessconfig

Then, when prompted enter a hostname, host address or range of host addresses to be given telnet/ssh/snmp access (name, IP address or IP address range, 0 to quit).  You enter:

192.168.1.0/255.255.255.0