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Full Discussion: Iptables to change source IP
Top Forums UNIX for Dummies Questions & Answers Iptables to change source IP Post 302478761 by vistastar on Wednesday 8th of December 2010 10:53:33 PM
Old 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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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)
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