From Perimeter Router Security Technical Implementation Guide Juniper
Part of SNMP is blocked at all external interfaces
SNMP information can be used to trace the network and reveal networks topology that could enable malicious users to gain access to network devices.
Review the ingress filter and verify SNMP has been restricted. SNMP operates on the TCP/UDP port 161.
The administrator will change the router configuration to block SNMP traffic at the perimeter.
	Lavender hyperlinks in small type off to the right (of CSS
	class id, if you view the page source) point to
	globally unique URIs for each document and item. Copy the
	link location and paste anywhere you need to talk
	unambiguously about these things.
	
      
	You can obtain data about documents and items in other
	formats. Simply provide an HTTP header Accept:
	text/turtle or
	Accept: application/rdf+xml.
      
Powered by sagemincer