Configuration of the System Against Login of Unauthorized Users-HUAWEI

*****System Against Login of Unauthorized Users*****

To enable the firewall function for the access through Telnet, and permit only the users of the IP address segment 14.140.5.1–14.140.5.254 to log in to the device through Telnet, do as follows:

OLT(config)#sysman firewall telnet enable
OLT(config)#sysman ip-access telnet 14.140.5.1 14.140.5.254

To enable the firewall function for the access through SSH, and permit only the users of the IP address segment 13.7.22.1–13.7.22.254 to log in to the device through SSH, do as follows:

OLT(config)#sysman firewall ssh enable
OLT(config)#sysman ip-access ssh 13.7.22.1 13.7.22.254

To enable the firewall function for the access through SNMP, and permit only the users of the IP address segment 10.10.20.1–10.10.20.254 to log in to the device through SNMP, do as follows:

OLT(config)#sysman firewall snmp enable
OLT(config)#sysman ip-refuse snmp 10.10.20.1 10.10.20.254

                                   ******END******

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