Difference between revisions of "Tunnelling UDP Traffic Through An SSH Connection"

From NST Wiki
Jump to navigationJump to search
(Tunnel A TCP Forward Port Through SSH)
(Overview)
Line 1: Line 1:
 
== Overview ==
 
== Overview ==
This section describes how to use '''NST''' to tunnel a '''UDP''' traffic conversation through a '''SSH''' connection. For our example we will tunnel [http://ipmitool.sourceforge.net/ IPMItool] traffic ('''UDP''' Port: 623) through  an '''SSH''' connection to a '''Sun Fire X4200''' server. Three systems are involved, 2 '''NST''' probes and the '''x4200''' server. Reference information was taken from: "'''[http://zarb.org/~gc/html/udp-in-ssh-tunneling.html Performing UDP tunneling through an SSH connection]'''".
+
This section describes how to use '''NST''' to tunnel a '''UDP''' traffic conversation through a '''SSH''' connection. For our example we will tunnel [http://ipmitool.sourceforge.net/ IPMItool] traffic ('''UDP''' Port: 623) through  an '''SSH''' connection to a '''Sun Fire X4200''' server's '''Integrated Lights Out Manager''' ('''ILOM''') service processor network interface. Three systems are involved, 2 '''NST''' probes and the '''x4200''' server. Reference information was taken from: "'''[http://zarb.org/~gc/html/udp-in-ssh-tunneling.html Performing UDP tunneling through an SSH connection]'''".
  
 
== Step By Step: ==
 
== Step By Step: ==

Revision as of 12:25, 22 March 2007

Overview

This section describes how to use NST to tunnel a UDP traffic conversation through a SSH connection. For our example we will tunnel IPMItool traffic (UDP Port: 623) through an SSH connection to a Sun Fire X4200 server's Integrated Lights Out Manager (ILOM) service processor network interface. Three systems are involved, 2 NST probes and the x4200 server. Reference information was taken from: "Performing UDP tunneling through an SSH connection".

Step By Step:

Tunnel A TCP Forward Port Through SSH

First we need to tunnel a "non-used" TCP port from the local NST probe to the remote NST probe which shares the same LAN as the destination x4200 server.

Establish SSH Connection With TCP Port Forwarding
[root@probe tmp]# ssh -p 31222 -L 9999:localhost:9999 root@55.44.22.178
root@55.44.22.178's password:
Last login: Thu Mar 22 11:18:59 2007 from cpe-72-222-76-188.nycaper.res.rdr.com

===============================================
= Linux Network Security Toolkit (NST v1.5.0) =
===============================================

[root@probe-biostar ~]#

In this example SSH is being NATed through a firewall. The SSH listening port is: "31222". We have choosen to use TCP port forward the "non-used" TCP port: "9999". The remote NST probe's IP address is: "55.44.22.178".