Configuring the Interfaces on Which SNMP Requests Can Be Accepted
By default, all router interfaces have SNMP access privileges. To limit the access through certain interfaces only, include the interface statement at the [edit snmp] hierarchy level:
[edit snmp]interface [ interface-names ];
Specify the names of any logical or physical interfaces that should have SNMP access privileges. Any SNMP requests entering the router from interfaces not listed are discarded.