Difference between revisions of "Using DTLS"

From Net-SNMP Wiki
Jump to: navigation, search
(Configuring Certificates)
(Configuring Certificates)
Line 7: Line 7:
 
=== Configuring Certificates ===
 
=== Configuring Certificates ===
  
The tokens for specifying which [[X.509]] certificates are configured in the [[snmp.conf]] file.  '''Note: NOT''' the [[snmpd.conf]] file.  The tokens are specific to all applications and thus belong in the ''snmp.conf'' file (without the "d").  If you wish to put them in the ''snmpd.conf'' file you can do so by prefixing the lines with ''[snmp]'', as described in the {{man:snmp_config}} manual page.
+
The tokens for specifying which [[X.509]] certificates are configured in the [[snmp.conf]] file.  '''Note: NOT''' the [[snmpd.conf]] file.  The tokens are specific to all applications and thus belong in the ''snmp.conf'' file (without the "d").  If you wish to put them in the ''snmpd.conf'' file you can do so by prefixing the lines with ''[snmp]'', as described in the {{man|snmp_config}} manual page.
  
 
=== Setting the Server's Certificate ===
 
=== Setting the Server's Certificate ===

Revision as of 18:41, 29 April 2009

SNMP over DTLS over UDP is supported in Net-SNMP 5.5 and beyond. This page describes what is necessary to configure the software to use it.

Generating X.509 Certificates

Configuring snmpd and snmptrapd to Accept DTLS Connections

Configuring Certificates

The tokens for specifying which X.509 certificates are configured in the snmp.conf file. Note: NOT the snmpd.conf file. The tokens are specific to all applications and thus belong in the snmp.conf file (without the "d"). If you wish to put them in the snmpd.conf file you can do so by prefixing the lines with [snmp], as described in the snmp_config manual page.

Setting the Server's Certificate

Recognizing Client Certificates

Opening and Listening on a port

snmpd and snmptrapd can both be configured to accept and process connections sent over DTLS. This is done on the command line using the dtls: addressing specifier. E.G. this:

 snmpd dtls:9161

tells snmpd to open port 9161 and listen for incoming SNMP over DTLS connections on it.

Configuring the Applications

Tools like snmpget, snmpwalk or anything that uses the core session structures within the main Net-Snmp library like the perl and python modules can make use of DTLS using the procedures described below.