snmpbulkwalk

It walks the SNMP tree like `snmpwalk`, but using SNMPv2c's GETBULK operation, which requests many values per packet instead of one at a time. The speed difference is huge on large trees, which is why it is the recommended way to dump a device's whole MIB once the community string is known. What it returns is identical: processes, installed software, interfaces, connection tables and, on careless devices, plaintext credentials.