I am trying to set up a net-snmp server on Windows using the latest version
(5.4.2). The idea to have net-snmp be the main service and proxy host-specific
requests to windows snmp service running on a different port (udp port 1161).
The windows snmp only accepts requests from localhost.
So this is a simple proxy setup, i.e having windows SNMP service covering part
of the OID tree and let net-snmp handle the rest.
According to the official documentation from snmpd.conf man page, I can just
use the following snmpd.conf
------
rocommunity public
proxy -v 1 -c public localhost:1161 .1.3.6.1.2.1
-------
And this is not working. Turning on the debug message showing the following
when I try to do a get of sysDescr.0 (.1.3.6.1.2.1.1.1.0):
-----------
C:\tools\net-snmp-5.4.2>win32\bin\release\snmpd.exe -c snmpd.conf
-Dproxy,vacm,result
No log handling enabled - turning on stderr logging
registered debug token proxy, 1
registered debug token vacm, 1
registered debug token result, 1
proxy_free_config: Free config
Cannot find module (IP-MIB): At line 0 in (none)
Cannot find module (IF-MIB): At line 0 in (none)
Turning on AgentX master support.
proxy_config: entering
proxy_args: final args: 0 = snmpd-proxy
proxy_args: final args: 1 = -Cn
proxy_args: final args: 2 =
proxy_args: final args: 3 = -v
proxy_args: final args: 4 = 1
proxy_args: final args: 5 = -c
proxy_args: final args: 6 = public
proxy_args: final args: 7 = localhost:1161
proxy_args: final args: 8 = .1.3.6.1.2.1
proxy_config: parsing args: 9
proxy_config: done parsing args
proxy_init: name = .1.3.6.1.2.1
proxy_init: registering at: iso.3.6.1.2.1
NET-SNMP version 5.4.2
vacm:getView: , found
results: request results (status = 0):
results: iso.3.6.1.2.1.1.1.0 = STRING: "Windows xp608l 5.1.2600 Service
Pack 2 XP Professional x86 Family 6 Model 9 Stepping 5"
Looks like the system simply ignored the registered entry to proxy.
When I use a complex snmpd.conf with context names, everything DOES work.
So is there a bug that has broken the simple proxy (i.e. without using context)
feature?
Best regards,
Tiebing Zhang
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