78 CHAPTER 8: CONTROLLING LOGIN USERS
Controlling Network 
Management Users by 
Source IP Addresses
You can manage a Switch 4800G through network management software. 
Network management users can access switches through SNMP.
You need to perform the following two operations to control network 
management users by source IP addresses.
■ Defining an ACL
■ Applying the ACL to control users accessing the switch through SNMP
Prerequisites The controlling policy against network management users is determined, including 
the source IP addresses to be controlled and the controlling actions (permitting or 
denying).
Controlling Network
Management Users by
Source IP Addresses
Controlling network management users by source IP addresses is achieved by 
applying basic ACLs, which are numbered from 2000 to 2999. Refer to 
“Configuring an Advanced IPv4 ACL” on page 844 for information about defining 
an ACL.
n
You can specify different ACLs while configuring the SNMP community name, the 
SNMP group name and the SNMP user name.
To do…  Use the command…  Remarks 
Enter system view  system-view - 
Create a basic ACL or 
enter basic ACL view 
acl number acl-number [ match-order 
{ config | auto }] 
As for the acl 
number 
command, the 
config keyword is 
specified by 
default. 
Define rules for the ACL  rule [ rule-id ] { permit | deny } [ source 
{ sour-addr sour-wildcard | any } | 
time-range time-name | fragment | 
logging ]* 
Required 
Quit to system view  quit - 
Apply the ACL while 
configuring the SNMP 
community name 
snmp-agent community { read | write } 
community-name [ mib-view view-name | 
acl acl-number ]* 
Required 
Apply the ACL while 
configuring the SNMP 
group name 
snmp-agent group { v1 | v2c } 
group-name [ read-view read-view ] 
[ write-view write-view ] [ notify-view 
notify-view ] [ acl acl-number ]
snmp-agent group v3
 group-name 
[ authentication | privacy ] [ read-view 
read-view ] [ write-view write-view ] 
[ notify-view notify-view ] [ acl 
acl-number ] 
Required 
Apply the ACL while 
configuring the SNMP user 
name 
snmp-agent usm-user { v1 | v2c } 
user-name group-name [ acl acl-number ]
snmp-agent usm-user v3 user-name 
group-name [ authentication-mode { md5 
| sha } auth-password [ privacy-mode 
{ des56 | aes128 } priv-password ]] [acl 
acl-number ] 
Required