RE: How to deny access from only some hosts usinf vacm

> From: [email protected] 
> [mailto:[email protected]] On 
> Behalf Of arijit
> Sent: Friday, January 04, 2008 4:09 AM

>    If I were to prevent access from only a few specific hosts 
> (or subnets) to the agent, is there any way to do it using 
> VACM? If not, what would be a preferred way of implementing the same?

	Host based access is not supported by VACM, which is a good thing, because hosts are so spoofable.  Suggested improvements:

	- For general read only access, create a user with a well known password.  Block this user from reading VACM and USM, as well as any other MIBs or objects which may contain sensitive information.

	- For read/write access, create users for each person that will be granted access.  From a security standpoint it does not matter which host they are working from, but who they are.

	- If you are addressing traffic flow issues, use traffic flow tools.  Your firewall can prevent or restrict all contact with the SNMP port(s) based on source host.


	HTH,

Mike

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