3com WX3000 Manuel D’Utilisation

 

1-5 

Set an SNMP group 

snmp-agent group v3 
group-name [ authentication | 
privacy ] [ read-view 
read-view ] [ write-view 
write-view ] [ notify-view 
notify-view ] [ acl acl-number ] 

Required 

Encrypt a plain-text password 
to generate a cipher-text one 

snmp-agent 
calculate-password 
plain-password mode { md5 | 
sha } { local-engineid | 
specified-engineid engineid } 

Optional 

This command is used if 
password in cipher-text is 
needed for adding a new user. 

Add a user to an SNMP group 

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 ] 

Required 

Set the maximum size of an 
SNMP packet for SNMP agent 
to receive or send 

snmp-agent packet max-size 
byte-count 

Optional 

1,500 bytes by default. 

Set the device engine ID 

snmp-agent local-engineid 
engineid 

Optional 

By default, the device engine ID 
is “enterprise number + device 
information”. 

Create or update the view 
information 

snmp-agent mib-view 
{ included | excluded } 
view-name oid-tree [ mask 
mask-value ] 

Optional 

By default, the view name is 
“ViewDefault” and OID is 1. 

 

The device provides the following functions to prevent attacks through unused UDP ports. 

z 

Executing the snmp-agent command or any of the commands used to configure SNMP agent 

enables the SNMP agent, and at the same opens UDP port 161 and UDP port 1024 used by SNMP 

agents and SNMP trap clients respectively. 

z 

Executing the undo snmp-agent command disables the SNMP function and closes UDP port 161 

and UDP port 1024 as well. 

 

Trap messages refer to those sent by managed devices to the NMS without request. They are used to 

report some urgent and important events (for example, the rebooting of managed devices). 

Note that basic SNMP configuration is performed before you configure basic trap. 

Follow these steps to configure basic Trap: