I have just started working with net_snmp and am having trouble getting
a session to open without error.
snmpget returns data fine from the command line, but I am trying to
get simple things to work programatically.
Here are the steps I have taken:
snmp.conf:
default port 162
defcommunity public
snmpd.conf:
rwcommunity public
Then, following the simple example on the website:
(Well OK, these are all wrapped in C++ objects)
(All snmp libraries are linked to my executable)
init_snmp("C:/path/to/MyExecutable")
snmp_sess_init(&session)
session.peername = "127.0.0.1"; (also tried "localhost")
session.version = SNMP_VERSION_1;
session.community = "public";
and set community length.
SOCK_STARTUP // for Windows
ss = snmp_open(&session);
The return pointer is null and the session did not open.
the session.s_errno and s_snmp_errno fields of the session struct are both 0.
I have tried retrieving error data with: snmp_error(&session,
NULL,NULL,&charptr),
and I get some stuff about NotifyfilterGroup and other things in
NOTIFICATION-MIB.txt .
I have configured the Windows firewall to open port 162 for snmp over UDP.
Any help much appreciated. I am sure there is something simple that I
have overlooked.
Thanks in advance,
Geoffrey Bays
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