Sponsored Content
Special Forums IP Networking iptables port forwarding does not work while I have 2 routes Post 302779333 by DGPickett on Tuesday 12th of March 2013 01:37:33 PM
Old 03-12-2013
Funny, first packet normally is syn no ack no fin, response is syn ack, the all ack until fin and fin ack. Is that sackOK a syn, an ack, ???

When the port changes, I look more to portforwarding examples, which are more than one rule. This works if you shut down either ethernet and address the other in the rule?
 

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. UNIX for Advanced & Expert Users

Port forwarding

Hi I want to set up port forwarding from one network to another network. I already have this configured on the Linux box using iptables. iptables -t nat -A PREROUTING -p tcp -i eth1 --dport 1521 -j DNAT --to 10.218.146.230 iptables -A FORWARD -p tcp -i eth1 -d 10.218.146.230 -j ACCEPT ... (2 Replies)
Discussion started by: slash_blog
2 Replies

5. 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

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. UNIX for Advanced & Expert Users

Iptable and port forwarding

Hello, I have a routeur linksys (192.168.1.1 ) a firewall (192.168.1.55 IN ----> 192.168.2.254 OUT) which using iptable I want to acces to an equipment (lorex video camera serveur 192.168.2.44) which using an ddns service on the port 9000 So i don t know which redirection a will do on the... (2 Replies)
Discussion started by: tapharule
2 Replies

8. UNIX for Dummies Questions & Answers

Iptables, port forwarding, 64k connection limit?

I am having an issue with iptables. My server is a RHEL6 64bit system. In my application I have a large number of connected clients ~100k to a particular service. The application works fine when iptables is off, 100k clients are able to connect. However, when I turn iptables on and add a... (1 Reply)
Discussion started by: jtipp3tt
1 Replies

9. 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

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
iptables action in tc(8)                                               Linux                                              iptables action in tc(8)

NAME
xt - tc iptables action SYNOPSIS
tc ... action xt -j TARGET [ TARGET_OPTS ] DESCRIPTION
The xt action allows to call arbitrary iptables targets for packets matching the filter this action is attached to. OPTIONS
-j TARGET [ TARGET_OPTS ] Perform a jump to the given iptables target, optionally passing any target specific options in TARGET_OPTS. EXAMPLES
The following will attach a u32 filter to the ingress qdisc matching ICMP replies and using the xt action to make the kernel yell 'PONG' each time: tc qdisc add dev eth0 ingress tc filter add dev eth0 parent ffff: proto ip u32 match ip protocol 1 0xff match ip icmp_type 0 0xff action xt -j LOG --log-prefix PONG SEE ALSO
tc(8), tc-u32(8), iptables-extensions(8) iproute2 3 Mar 2016 iptables action in tc(8)
All times are GMT -4. The time now is 02:02 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy