Simple Network Management Protocol
Handle change in settings remotely
Includes: Routers, Switches, Servers, IoT etc.
MIB: Management Information Base, Store device info (text file / DB)
Written using Abstract Syntax Notation One (ASN.1)
OID Tree
Community Strings: ~= Passwords determining if info can be viewed or not → Problem: Not encrypted when not v3, and transmitted at each access
| Settings | Description |
|---|---|
rwuser noauth |
Provides access to the full OID tree without authentication. |
rwcommunity <community string> <IPv4 address> |
Provides access to the full OID tree regardless of where the requests were sent from. |
rwcommunity6 <community string> <IPv6 address> |
Same access as with rwcommunity with the difference of using IPv6. |
Footprint tools: snmpwalk, onesixtyone, braa
(query OID information)