Sponsored Content
Full Discussion: Port forwarding
Top Forums UNIX for Advanced & Expert Users Port forwarding Post 302207531 by slash_blog on Friday 20th of June 2008 07:29:11 AM
Old 06-20-2008
Quote:
Originally Posted by slash_blog
Just in case somebody is interested:
Code:
rdr dnet0 10.218.108.141/32 port 1521 -> 10.218.146.230 port 1521

will do just that if we store this rule in a file and use ipnat -f <file>.

Now I need information on having this configuration for packets from one particular IP. Any help is appreciated Smilie
Here is the final solution:

Add the following rule to /etc/ipf/ipfnat.conf

Code:
rdr dnet0 from 10.218.141.156/32 to 10.218.147.210/32 port = 1521 -> 10.218.146.230 port 1521 tcp

and execute
Code:
ipnat -CFf /etc/ipf/ipfnat.conf

This will port forward oracle requests originating from 10.218.141.156 for 10.218.147.210 to 10.218.146.230.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

iptables: forwarding a port

I've been googling for a while now, trying to forward port 3000 to port 80.... In the past I used to DLink router to forward port 3000 to 80. I recently finished (well, is it ever done anyhow?) setting up my linux box and got it acting as a router. I want to continue to run Apache on port 80... (1 Reply)
Discussion started by: meeps
1 Replies

2. UNIX for Advanced & Expert Users

port forwarding

Hi, I have to install an application that has a built in tftp server. Tftp comes in on port 69. As i am not installing this application as a root user i am running into trouble because only the root user can listen to ports < 1024. So changing the port i listen to to one greater than 1023 isn't... (1 Reply)
Discussion started by: imloaded24_7
1 Replies

3. AIX

Port/ IP Forwarding AIX5.3

Hi friends i have the following setup machine1 two network adapters one connected to lan the other connected directly to machine2 machine2 is not connected to lan i need to access machine2 directly from the LAN how to force machine1 to forward all traffic received on a specific port the... (1 Reply)
Discussion started by: Husam
1 Replies

4. Solaris

Port/IP Forwarding in Solaris 10.0

Hi, I am looking out a way to forward all UDP traffic coming on ports 3001,3002,3003 and 3004 on server 10.2.45.200 to corresponding ports of server 10.2.45.197. I am using Solaris 10.0. -bash-3.00$ uname -a SunOS airtelussd2 5.10 Generic_127127-11 sun4u sparc SUNW,Sun-Fire-V445 Is... (6 Replies)
Discussion started by: vikas027
6 Replies

5. Solaris

ip and port forwarding in Solaris 10

Hi; I have the following issue: I have a Solaris server running an old applications which connects to an http server in other server at certain port. The thing is that the http server has changed its ip and port and the addres in the app is hard coded and touching the app by now is out of the... (0 Replies)
Discussion started by: ppereira
0 Replies

6. IP Networking

SSH Port Forwarding - sharing the same port

Hi Linux/Unix Guru, I am setting Linux Hopping Station to another different servers. My current config to connect to another servers is using different port to connect. e.g ssh -D 1080 -p 22 username@server1.com ssh -D 1081 -p 22 username@server2.com Now what I would like to have... (3 Replies)
Discussion started by: regmaster
3 Replies

7. IP Networking

Port forwarding issue

hi guys i have a simple question ! i have two ips . a valid and internal(172.16.11.2) i want to use port forwarding to forward any request to valid IP port 8001 to internal ip port 80 . i use this rule : sysctl -w net.ipv4.ip_forward=1 iptables -t nat -A PREROUTING -p tcp... (1 Reply)
Discussion started by: mhs
1 Replies

8. UNIX for Advanced & Expert Users

Help on port forwarding please..

Hi experts, We have windows machine ( A ) in one network & 2 Linux Servers ( B & C ) in another network. There is a firewall between these 2 networks and SSH (TCP/22) & HTTPS (TCP/443) are allowed from A to B only (but not to C). There is no personal firewall / iptables running on any machine.... (1 Reply)
Discussion started by: magnus29
1 Replies

9. IP Networking

Port Forwarding not working

Hello Gurus, I have configured port forwarding at router. But after configuration I am not able to connect the computer from outside/Over internet/Remote desktp from other computer. Could you please advice? Thanks- Pokhraj (2 Replies)
Discussion started by: pokhraj_d
2 Replies

10. Red Hat

iptables port forwarding

Hello All, I would like to ask you very kindly with /etc/sysconfig/iptables file I have to setup port forwarding on RHEL6 router. Users from public network must be able to ssh to servers in private network behind RHEL6 router. Problem is that servers in private network must be isolated. My... (2 Replies)
Discussion started by: oidipus
2 Replies
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)
All times are GMT -4. The time now is 04:58 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy