12-08-2010
Do you mean changing the source ip of a packet arrives at a the snmp server before the packet is dispatched to snmp daemon by kernal(of the snmp server)?
It is hard to do so, cuz SNAT is only usable from POSTROUTING.
SNAT at POSTROUTING
Last edited by vistastar; 12-09-2010 at 02:30 AM..
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LEARN ABOUT CENTOS
net-snmp-config
net-snmp-config(1) Net-SNMP net-snmp-config(1)
NAME
net-snmp-config - returns information about installed net-snmp libraries and binaries
SYNOPSIS
net-snmp-config [OPTIONS]
DESCRIPTION
The net-snmp-config shell script is designed to retrieve the configuration information about the libraries and binaries dealing with the
Simple Network Management Protocol (SNMP), built from the net-snmp source package. The information is particularly useful for applications
that need to link against the SNMP libraries and hence must know about any other libraries that must be linked in as well.
OPTIONS
--version
displays the net-snmp version number
--indent-options
displays the indent options from the Coding Style
--debug-tokens
displays a example command line to search to source code for a list of available debug tokens
SNMP Setup commands:
--create-snmpv3-user [-ro] [-a authpass] [-x privpass]
[-X DES|AES] [-A MD5|SHA] [username]
These options produce the various compilation flags needed when building external SNMP applications:
--base-cflags
lists additional compilation flags needed for external applications (excludes -I. and extra developer warning flags, if any)
--cflags
lists additional compilation flags needed
--libs lists libraries needed for building applications
--agent-libs
lists libraries needed for building subagents
--netsnmp-libs
lists netsnmp specific libraries
--external-libs
lists libraries needed by netsnmp libs
--netsnmp-agent-libs
lists netsnmp specific agent libraries
--external-agent-libs lists libraries needed by netsnmp libs
Automated subagent building (produces an OUTPUTNAME binary file): [This feature has not been extensively tested, use at your own risk.]
--compile-subagent OUTPUTNAME [--norm] [--cflags flags]
[--ldflags flags] mibmodule1.c [...]]
--norm leave the generated .c file around to read.
--cflags flags
extra cflags to use (e.g. -I...).
--ldflags flags
extra ld flags to use (e.g. -L... -l...).
Details on how the net-nsmp package was compiled:
--configure-options
Display original configure arguments
--snmpd-module-list
Display the modules compiled into the agent
--prefix
Display the installation prefix
V5.7.2 16 Nov 2006 net-snmp-config(1)