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SNMP Security

bmannella
Level 1
Level 1

Hi, i have a 3640 router and a server that i use to poll for mrtg graphs. What are the commands to setup an ACL or something that can block snmp from everything but that host.

3 Replies 3

thisisshanky
Level 11
Level 11

Its as simple as this.

access-list 10 permit host

snmp-server community RO 10

Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus

this is all i need, i don't have to apply it to an interface or have a deny statments?

Yes, this is all you need.

You may refer to this link to read more on how to secure SNMP access.

http://www.cisco.com/en/US/customer/tech/tk648/tk362/technologies_tech_note09186a0080094489.shtml

I would recommend using SNMP V3 on the routers.

Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus