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Destination NAT using ipnat in Solaris 8

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Old 03-07-2008
Destination NAT using ipnat in Solaris 8
Hello People,

Please can someone help me with destination IP address NAT and Port transalation using ipnat in Solaris 8.

Scenario: Box A(192.168.100.1/24) and Box B (192.168.100.50/24) are connected phyically and logically(vlan) on the same network switch.

Box A hosts an application(client) which needs to talk with an application (server) on hosted on BOX B. The requirement here is that Box A application has restrictions contacting the server application using the physical IP(192.168.100.50) and actual port no(5555/tcp). So I am trying a Destination IP nat and port translation using ipnat (ipf verion 3.4).

For eg: Box A will contact Box B using NAT IP(10.1.1.1) and translated port(7777/tcp).

Please help!

Thanks!
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LEARN ABOUT HPUX

ipnat

ipnat(1M)																 ipnat(1M)

NAME

       ipnat - user interface to the NAT subsystem

SYNOPSIS

       ipnat [-dlhnrsvCF] -f filename

       The ipnat utility opens a specified file (treating - as stdin) and parses it for a set of rules that are to be added or removed from the IP
       NAT.

       If there are no parsing problems, each rule processed by ipnat is added to the kernel's internal lists. Rules are appended to the  internal
       lists, matching the order in which they appear when given to ipnat.

       ipnat's	use  is restricted through access to /dev/ipauth, /dev/ipl, and /dev/ipstate. The default permissions of these files require ipnat
       to be run as root for all operations.

       ipnat's use is restricted through access to /dev/ipnat. The default permissions of /dev/ipnat require ipnat to be run as root for all oper-
       ations.

       The following options are supported:

       -C

	   Delete all entries in the current NAT rule listing (NAT rules).

       -F

	   Delete all active entries in the current NAT translation table (currently active NAT mappings).

       -d

	   Turn debug mode on. Causes a hex dump of filter rules to be generated as it processes each one.

       -f filename

	   Parse specified file for rules to be added or removed from the IP NAT. filename can be stdin.

       -h

	   Print number of hits for each MAP/Redirect filter.

       -l

	   Show the list of current NAT table entry mappings.

       -n

	   Prevents ipf from doing anything, such as making ioctl calls, which might alter the currently running kernel.

       -s

	   Retrieve and display NAT statistics.

       -r

	   Remove matching NAT rules rather than add them to the internal lists.

       -v

	   Turn verbose mode on. Displays information relating to rule processing and active rules/table entries.

       /dev/ipnat

	   Link to IP Filter pseudo device.

       /dev/kmem

	   Special file that provides access to virtual address space.

       /etc/ipf/ipnat.conf

	   Location of ipnat startup configuration file.

       /usr/share/ipfilter/examples/

	   Contains numerous IP Filter examples.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWipfu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       ipf(1M), ipfstat(1M), ipnat(4), attributes(5)

       To  view license terms, attribution, and copyright for IP Filter, the default path is /usr/lib/ipf/IPFILTER.LICENCE. If the Solaris operat-
       ing environment has been installed anywhere other than the default, modify the given path to access the file at the installed location.

								    25 Jul 2005 							 ipnat(1M)