3com 5500-ei pwr Reference Guide

 

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[Sysname] snmp-agent usm-user v2c userv2c readCom 

Specify the SNMP version of the NMS as SNMPv2c, fill the write community name field with userv2c. 

Then the NMS can access the agent. 

# Create an SNMPv2c user userv2c in group readCom, permitting only the NMS with an IP address 

1.1.1.1 to access the agent, and denying the access of other NMSs. 

<Sysname> system-view 

[Sysname] acl number 2001 

[Sysname-acl-basic-2001] rule permit source 1.1.1.1 0.0.0.0 

[Sysname-acl-basic-2001] rule deny source any 

[Sysname-acl-basic-2001] quit 

[Sysname] snmp-agent sys-info version v2c 

[Sysname] snmp-agent group v2c readCom 

[Sysname] snmp-agent usm-user v2c userv2c readCom acl 2001 

Specify the SNMP version of the NMS with an IP address 1.1.1.1 as SNMPv2c, fill the write community 

name field with userv2c. Then the NMS can access the agent. 

snmp-agent usm-user  v3  user-name  group-name [ [ cipher ] authentication-mode { md5 | sha } 

auth-password [ privacy-mode  { des56 | aes128 } priv-password ] ] [ acl acl-number ] 

undo snmp-agent usm-user v3 user-name group-name { local | engineid engineid-string } 

System view 

user-name: Username, a string of 1 to 32 characters. 

group-name: Name of the group corresponding to the user, a string of 1 to 32 characters. 

cipher: Specifies the authentication password (auth-password) or encryption password (priv-password) 

to be in cipher text. The cipher text password can be calculated using the snmp-agent 

calculate-password command. 

authentication-mode: Specifies the security mode as authentication required. If you do not specify this 

keyword, neither authentication nor encryption is performed. 

md5: Uses HMAC MD5 algorithm for authentication. 

sha: Uses HMAC SHA algorithm for authentication, which is securer than MD5. 

auth-password: Authentication password, a string of 1 to 64 characters in plain text, a 32-bit 

hexadecimal number in cipher text if MD5 algorithm is used, and a 40-bit hexadecimal number in cipher 

text if SHA algorithm is used. 

privacy: Specifies the security mode as encrypted. 

des56: Specifies the encryption protocol as Data Encryption Standard (DES). 

aes128: Specifies the encryption protocol as Advanced Encryption Standard (AES), which is securer 

than DES.