Iptables redirect to another ip. Skip to main content.

Iptables redirect to another ip The In this blog, we will delve into how iptables redirect outgoing IP to another IP, explore practical use cases, and learn best practices to Sep 24, 2017 · 下面实现的是通过一个内网IP重定向到一个外网IP上，或者访问一个外网IP重定向到一个内网IP，基本操作保持一致，主要目的就是重定向，有点类似host： 1、通过代理访 Sep 9, 2017 · sudo iptables -t nat -A OUTPUT -p tcp --dport 80 -j DNAT --to-destination 192. 3:25550 to 192. To access the NAS from the outside, I mapped the port 8080 to port 80 on the NAS as follow: iptables -t nat -A PREROUTING -p tcp --dport 8080 -j DNAT --to-destination 10. How to redirect/route an IP address to another IP address? E. com with port 2002 to redirect/respond with local ip with 2002. My web server runs on port 8080 The easiest approach is likely to use iptables NAT: iptables -t nat -A OUTPUT -d old-ip -p tcp --dport some-port -j DNAT --to-destination new-ip should do that. 2:25570 iptables -t nat -A PREROUTING -p tcp -d 192. Easy iptables rule: iptables -t nat -A PREROUTING -p udp --dport 161 -j REDIRECT --to-ports 16161 However responses appear to come from port 16161 and are dropped by linux clients. Ask Question Asked 10 years, 3 months ago. 3 I'm trying to have client IP 3. 168 Open /etc/sysctl. Viewed 506 times //VM_IP:443; I've tried with iptables but there are too many existing entries and I don't want to break something. Per my understanding doing nc -zv x. I'm trying to run a node. I can set iptables rules to redirect all http request to the Debian. conf and ensure that the line net. domain. This can be more specific, like it originates from ip 1. That redirect does not work. 46. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for What i'm trying to achieve is redirecting all of the DNS queries form input interface wlan1 to some specific ip. Then you need to execute this command: iptables -t nat -A OUTPUT -d [ipaddress1] -j DNAT --to-destination [ipaddress2] Where ipaddress1 is the address that you want redirecting to ipaddress2. 20 and then when I type in 10. I can achieve one thing which is that only my desired host can access the ip address, but I can't get the user to redirect when they type something in their url bar. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with Introduction. 1:8080 Share. Is there a way to do this easily in IP tables or similar? –to-destination <NEW_IP>: Specifies the new IP to which traffic is redirected. 72 IP. Then you need to execute this iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to-destination 10. 1 server to pass this iptables routing incoming IP to another destination IP question. 6 Mar 21, 2016 · iptables -t nat -A PREROUTING -s 192. 125. 165. I am trying to using iptables I do not quite understand what you mean. ip_forward=1 iptables -t nat -A PREROUTING -p tcp --dport port -j DNAT --to-destination ip:port iptables -t nat -A POSTROUTING -j MASQUERADE Where ip and port are the target server I want to redirect the current server port to. Here’s where the IPTables magic happens. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online sysctl net. js web server (which I do not want to run as root), using only one of those ip addresses (it would be very b Skip to main content. 1; PC external IP = 192. Only I don't know how to set up with iptables to allow for example incoming request from sub. I have tried using iptables to redirect this traffic coming at localhost:9099 to 172. Ask Question Asked 6 years, 1 month ago. 200. 164. Mar 18, 2024 · $ sudo apt-get install iptables. To verify the DNS server and port I'm trying to use, I have run this command. Router internal IP = 192. Both servers are Windows servers. 100 connectport=8080 protocol=tcp I have loopback IP 127. 55:1234 is indeed going to 172. ip_forward=1 iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to-destination 127. This is the command i was using. 10 -> 20. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for I redirected traffic for port 80 to 8080 on my machine with. 0 -j DNAT - May 9, 2018 · IPTables NAT Ubuntu redirect 2nd IP to another IP. 111. Y is the internal one running webserver. Most online "solutions" redirect these to another port, but that is not a real solution because then you have to open that other port on the firewall (IP stays same, so the new port is public). We'd like to redirect traffic from their IP to our load balancer which will send the HTTP POSTs to a p Skip to main content . 10 always. 226. (It was to emulate an embedded system (with fixed addresses) Dec 9, 2018 · 有时我们想让一个域名指向另一个 IP 时，我们会直接修改 /etc/hosts，来实现我们的目地。 那如果是访问一个 IP，需要这个 IP 指向另 Nov 17, 2024 · There are three approaches to solving this problem. For example my server Ip adress: 80. 55 1234 In the second session you start Even though I have forced my machine to resolve any DNS names to the IP of my Linux Router (so there's no other way that the Web Browser might perform any verification around the real IP address for the specified domain), by some mechanism regarding SSL certificates or any other sort of technique which I do not know, the Web Browser informs that I must perform How do you redirect (one way only) udp packets to another host using netcat? nc -l -u 0. In this article, it is assumed that you do not have iptables running, or at least no nat Nov 15, 2024 · I've used rules like the following to redirect OUTPUT traffic intended for a given host:port to another host:port. Secondly, we’ll use the PREROUTING chain with the NAT table: $ iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080. 11 server with 2 NICs one with 192. First, enable IP forwarding. This tutorial will show which command lines are required to make this possible. 100 to 192. Dec 5, 2008 · By using iptables and its masquerade feature, it is possible to forward all traffic to the old server to the new IP. On Linux systems, port forwarding is frequently set up with Iptables, a utility for configuring IP packet filter rules. Stack Exchange Network. 100 -j DNAT --to-destination 192. So the request will be redirect to localhost, if your server is binding eth0, there is no way to receive it. 3 --dport 25550 -j DNAT --to-destination Skip to main content. (Note: an What i am trying to achieve with iptables is setting a rule(s) that when a specific packet arrives from wan it gets redirected to a new address on wan. So I understand that you need to allow the connection first (right?) iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 8443 -j ACCEPT iptables -A INPUT -m state --state NEW -m tcp -p tc Skip to main content . 16 I need to redirect all traffic to one specific ip (in this case a index. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for I'm currently trying to figure out how I can forward traffic from a secondary public IP address of my dedicated server to an internal IP of my network using iptables in order to make e. Currently I'm using this: /sbin/iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to-source IP; I want to route from eth0 (internal network interface) to eth1 (external network interface) using iptables. On the first host don't just do DNAT, but also do SNAT such that return traffic will be send back through the first host. – sudo sysctl -w net. I needed to port forward to another ip address on my raspberry pi 3 model b and this is how I accomplished it. I need to implement traffic "forwarding" on my ubuntu machine, such that all traffic that is coming/going to x. sudo iptables -t nat -A POSTROUTING --out-interface eth1 -j MASQUERADE sudo iptables -A FORWARD --in-interface eth0 -j ACCEPT All of the forwarded traffic will traverse the FORWARD chain. When it comes to interface to IP, I can use the PREROUTING and POSTROUTING and change the destination and source IP accordingly. 238, which is owned by server 10. My IP is 192. iptables-save > /etc/iptables. sudo iptables -A PREROUTING -t nat -p tcp --dport 80 -j REDIRECT --to-ports 8080 It works fine for all the world except my own machine. With the third and final step we tell IPTables to rewrite the origin of connections to the new server’s port 80 to appear to come Caveat: this will only redirect traffic destined for the IP address of the computer on which you create the forward. Add. 2:8080 but all measures are in vain. You definitely want to limit it as much as possible; what if Using iptables, I want to redirect all DNS lookup traffic to a specific IP and Port (5353). Home: Forums iptables -t nat -A OUTPUT -o lo -p tcp --dport 514 -j REDIRECT --to-port 5000 or. I have multiple IP addresses on the same server and I would like to redirect all outgoing traffic on port 80 to a different IP on the same server just no to use always main IP. On this machine, one Debian runs on OpenVZ. 0 --dport 443 -j DNAT --to-destination 0. ipv4. 42. I've also enable net. Unfortunately we have a client who has hardcoded a device to point at a specific IP and port. X. I have an SNMP agent listening on a high-level port (16161) and I want to redirect traffic from the standard SNMP agent port 161. I am trying to using iptables Because REDIRECT in iptables always REDIRECT to localhost, instead of eth0 or other network device. 2. For example, port 80 forwards to port 8080 on the same machine (the webserver). 1 --dport 80 -j REDIRECT --to-ports 8080 If you try to save it like this guy says it'll completly break and it won't even work temperarily: $ sudo systemctl enable iptables $ sudo service iptables save $ sudo iptables -t nat -A PREROUTING I am moving a server from one local IP address to another, and I have a lot of places on my network which statically reference the old IP address. net. Port forwarding is a NAT technique that allows proxy firewalls to redirect communication requests from one IP address and port to another. iptables . 5. 04. X is the external address while Y. Assume you want to redirect all outgoing traffic destined for 192. Loading Tour As the answer writes, this is dangerous as-is as if you also are using the host for doing any kind of IP forwarding things (like NAT for another server through this), this solution will redirect all the NATed connections to the other (local) port. This young community is incredible. x. 2:443. Before redirecting the TCP-packet to the other machine, the packet needs to be modified so that it Step 2: Tell IPTables to redirect the traffic to the new server: # iptables -t nat -D PREROUTING -p tcp –dport 80 -j DNAT –to-destination <DESTINATION IP> Step 3: Here’s where the IPTables magic happens. But as I found it is only possible to specify a single new destination IP address/Port. I will show you the steps I've taken to accomplish this Hi! I have server with external IP. The only real solution I have seen so far I have three boxes: a Linux client, a OpenWRT router, and a Squid server. I will call this server the OLD server that has an IP Address of 55. and the mysql server at 10. 55. This is not exactly what I want, because I only want iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -d 100. 240. 2 Nov 17, 2024 · I'm currently trying to figure out how I can forward traffic from a secondary public IP address of my dedicated server to an internal IP of my network using iptables in order to make e. However my forwarding server has 2 nics. 80. 151. Web server IP = 192. THe packet I need to get to the hidden port originates from outside. After tested you can just save your current iptables rules with. 1 --dport 80 -j DNAT --to-destination publicip:3128 iptables -t nat -A POSTROUTING -j MASQUERADE But above rules are not working. Nice blog. 0/0,::/0 and small thing, I had to put the last part behind the DNAT iptables --table nat --append PREROUTING --in-interface eth0 --protocol udp --destination-port I have a laptop that forwards all the traffic from one interface to another. ip_forward. conf and uncommment the line . Disabling the port forwarding. 100 connectport=8080 protocol=tcp netsh interface portproxy v4tov4 listenport=443 connectaddress=192. Example: Any UDP packet arriving on port 10000 gets redirected to 8. DTDG is greatly precisely stated, thanks. x:9092 will be redirected to 127. I'd like to re-route that traffic to the new addre Skip to main content. Any attempt for my computer to connect to another computer on port 53 should be redirected to 23. 3. This causes my iptables to complain: "iptables: Invalid argument" – Kristof Provost. Viewed 3k times 0 . x 9092 should be successful ( this is how I am going to test forwarding ). 252. 51: iptables -t Dec 9, 2018 · 那如果是访问一个 IP，需要这个 IP 指向另一个 IP 呢？ 是的，iptables 可以实现这层转发。 如果我写的你没看懂，那一定是我表达得不够好。 Sep 24, 2017 · iptables不单只防火墙这么简单，NAT转发这些都很强大。但是市面上iptables的教程基本都是围绕着CentOS 6来展开的，而对于CentOS 7和Ubuntu又不一样的写法，尤其是Ubuntu居然加了一个ufw做为封装，目的是为了简化iptables，个人感觉比较乱，封装了太多导致上 Nov 16, 2024 · I currently have a NAS box running under port 80. 2). I'm trying to get the client (which is connected to the router) web traffic to go through the proxy server without any cl Redirect traffic to another IP and Port. 16. When a given webserver is restarting, we forward requests to another IP on port 8080 which displays a Maintenance Page. 3 iptables -t nat -A POSTROUTING -s 8. But as I found it only redirects traffic to the machine itself. 8:10000. iptables-restore < /etc/iptables. nc -l 172. html) with the follow Get early access and see previews of new features. ip_forward=1 reload sysctl or reboot your raspberry pi. Is there any way how to allow TCP traffic only from specified countries on a specified port and the rest of traffic redirect to another IP/port using iptables ? Skip to main content. ip_forward=1) New connections are identified by the conntrack extension and will specifically be sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 5000 sudo /sbin/iptables-save. The following steps need to be done on the OLD server. Nov 16, 2024 · I have a test setup: server1:1. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, As soon as a TCP packet with destination port 9999 arrives at server A, it should be forwarded to server B (ip: 10. 72 -p5353 198. 1 server. 9. This tutorial teaches you how to forward ports using Iptables. 185. Run the following command: bash Copy code sudo iptables -t nat -A OUTPUT -d 192. Stack Overflow. 20. Nov 18, 2024 · To have multiple public ips on my home connection, i rent a VPS with few IPs, i've set a openvpn server and all the servers at my home which need a public ip, have a vpn connection and i'm doing DNAT/SNAT on the VPS to redirect the traffic destined to a specific public ip to my home server trough openvpn. ip_forward = 1 is there and not commented out. Ask Question Asked 2 years, 10 months ago. If you find this doesn't work, we'll need to see all your rules to make any further comment, will redirect all traffic in the interface eth0 (option: -i) received on port 80 and 443 (option: --dport 80, 443) to a foo_serverip IP address on port 80 or 443. Add the following rules to iptables. I am a developer and I need to redirect port 80 to 8080 for myself. x subnet. 0 12345 | nc -u 192. 1 if there is a I want to be able to redirect a host in my Lan to an specific ip address and port. 3 -j SNAT --to-source 8. 5,785 1 1 gold badge 32 32 silver badges 44 44 bronze badges. Then execute $ sudo sysctl -p. To filter packets you'll now sudo sysctl -w net. 2; PC internal IP = 10. In this article we will learn to redirect HTTP traffic from old server to new server. ip_forward=1 sudo iptables -A FORWARD -i eth0 -j ACCEPT sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE You will want to set appropriate policies on the chains. 2:8080 (container ip) now i want to access this ip from localhost:9099. 1. 10 Skip to main content. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online I will give an example that best describes this situation. If you have such a setup, you could fix it by adding more qualifiers to the I used this solution (iptables port redirect not working for localhost) before, but can’t anymore because port 443 is now occupied on my . Yes, we are replacing web servers, and potentially switching hosting providers (hence the inability to just replace the current server with a new one on the new IP). 2 -j DNAT --to-destination 8. 25. Learn more about Labs. then we redirect the ports for FTP data connections from your firewall to your internal server. I was facing traffic issues in AWS environment having one private subnet, and another subnet WOW. redirect traffic with iptables to local port . iptables -A PREROUTING -t nat -i eth0<Incoming-interface> -p tcp --dport 514 -j REDIRECT --to-port 5000 redirect an incoming connection to a different IP address on a specific port . 10. I have 2 ip adresses on the Internet who redirect on the same machine. It works for thank you guys, its all working now my friends and I can now connect to the DayZ server I had to switch also my WireGuard config on the Server B to route all traffic through it AllowedIPs = 0. 0/24 -p tcp --dport 80 -j DNAT --to-destination 192. 128 12345 stops after successfully redirecting the first packet. 8. iptables -t nat -A PREROUTING -p tcp -m tcp --dport 50000:50100 -j DNAT --to-destination 192. This is definitely not what I am after. First of all we can assume you have a server with interface name as "host1", and destination IP on which you want to redirect it is "175. 168. 10? Nov 15, 2018 · I would like to know if it is possible to direct all connections that goes to IP X to another ip I can do this with the code below but are all ports I would like to do this only with port 80 and 443 is it possible? /sbin/iptables -t nat -I OUTPUT --dest 0. (index. Make it This is iptables, they can use all the other parameters that we know, for example, if we only want to redirect traffic from a specific IP, it would be by adding -s For example I will redirect only the traffic that comes from 10. I have verified that "Server A" is able to "talk" to "Server B" on IP 2. 0:8080 What i am trying to achieve with iptables is setting a rule(s) that when a specific packet arrives from wan it gets redirected to a new address on wan. This is iptables, they can use all the other parameters that we know, for example, if we only want to redirect traffic from a specific IP, it would To avoid this, you can use iptables to forward all traffic to the new server IP address. The redirected packet preserves dest ip, so you need to listen on the original interface at the new port - AND - have that port wide open on the firewall (then it works, confirmed). However I want the 1. YOU SHOULD ALSO ADD THIS LINE: iptables -t nat -A OUTPUT -p tcp -d 0. With this step we tell IPTables to rewrite the origin of connections to the new server’s port 80 to appear to come from the old server then open the proper port range iptables -A INPUT -p tcp -m tcp --dport 50000:50100 -j ACCEPT. Y. Share your knowledge at the LQ Wiki. Y:8080 X. Follow answered Oct 28, 2008 at 12:35. iptables doesn't do DNS (in any way that you want) so abandon any thoughts of layer-4 handling - it's strictly a layer 2/3 tool. Possibly with additional rules to DROP unexpected packets on the WAN interface and REJECT packets on the eth0 interface. 89". What a lot of answers in a short amount of time. 8 -j ACCEPT before the rule you show above (ie, handle the exception, then the rule). If you are trying to do port forwarding to another IP and your server(I called it firewall) which receiving Now, I want to setup iptables on "Server A" to forward/NAT all incomming traffic on "eth0:2" to IP 2. Modified 6 years, 1 month ago. 114. 5:1234. We have to replace the OLD server with a NEW server that has a different IP address of 10. webservers and the like visible from outside. That's fine for incoming packets, but for locally generated packets (on the same system) I don't believe it's possible to redirect Jun 11, 2014 · Great article, I followed this article and was able to get all my mysql traffic forwarded to a second server from the 10. Mar 23, 2010 · Basicly you need to figure an external IP address on the "outside" interface and add iptables rule: iptables -t nat -A PREROUTING -p tcp -d X. 0. 10 as IP. I also tried extension DNAT. com @23. X --dport 8080 -j DNAT --to Y. conf and uncomment net. i have got two servers : and installed the IP Tables: iptables -t nat -A PREROUTING -d 8. 34. sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080 sudo iptables -t nat -I OUTPUT -p tcp -d 127. If you want redirect all traffic from the old server's HTTP port to new server with a different IP. I have a server with multiple IP addresses associated with it. 2:80 Nov 28, 2013 · IP forwarding needs to enabled: edit /etc/sysctl. 10 in my browser, it connects to 20. This question plus @Eric's answer have helped me solving something, thanks! I would like to redirect all traffic (specifically TCP & UDP) from multiple WAN interfaces (ppp0, ppp1, ppp2) to a single IP from eth0. 1 server2:2. 77. Visit Stack Exchange. Open two terminal sessions on your machine and start the following. Modified 6 years, 7 months ago. rules and restore them with . g. Ask Question Asked 6 years, 7 months ago. 172 on the public address 167. Let's assume 10. 1 Proxy Server IP/Port = publicip:3128. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company is it possible (and how) to do this using iptables ? I already tried extension REDIRECT in order to change port. Modified 2 years, 10 months ago. 6. When it comes to removing the port routing capability, no answer was given that would switch off the forwarding (experimentally verified on Ubuntu 18. conf then run the following iptables commands iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT -o lo --to-port 80 but I'm getting the errror shown below: Can't use -o with PREROUTING The man page explains why this can't work: (REDIRECT) redirects the packet to the machine itself by changing the destination IP to the primary address of the incoming interface I would like to forward an external port to a different port on a machine on a private network. I discovered this recently while doing something similar. iptables -t nat -A PREROUTING -p tcp -s 192. There are Aug 16, 2019 · iptables -t nat -A PREROUTING --proto tcp --dport 80 -j REDIRECT --to-ports 90 This will redirect any incoming packets (coming in on a network interface from another system) to tcp port 80 to localhost port 90. 3 do a HTTP request from the 1. . I could do a KVM or some virtualization to make a reverse nginx proxy but that would be an overly complicated solution. In most cases, this other IP is on a separate server. Modified 10 years, 3 months ago Oct 18, 2013 · sysctl net. ip_forward = 1. Reply; prahaku • January 24, 2018. I followed the instruction provided for different question, and it works. 230. I already tired: iptables -t nat -A PREROUTING -i wlan1 -p udp --dport 53 -j DNAT --to MYDNSIP:53 and. I would I'm looking for a way to forward all the packets coming to a 192. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for I am running a node server inside a docker container on port 8080 and i can access it via 172. If I understand correctly, you are trying to expose port 25 of 10. b and remote (not-public) IP x. iptables -t mangle -A POSTROUTING \ -d [IP to spy on] \ -j ROUTE –tee –gw [IP of wireshark] iptables -t mangle -A PREROUTING \ -s [IP to spy on] \ -j ROUTE –tee –gw [IP of wireshark] I have not tested the command since I have no one specific ip that I want to DNS settings is set up, namecheap stuff said it is functional and external IP I am connecting to should be setup properly they suggest. rules The next step is to tell IPTables to redirect the traffic to the new server: # iptables -t nat -A PREROUTING -p tcp –dport 80 -j DNAT –to-destination 122. Let us assume that we have an old server that is going to die pretty soon. b:9092. I want to redirect this requests to a port 8080 of IP1 before these packets leave machine And when I redirect using IP address the redirection is happening but the redirected IP/URL Skip to main content. html) wIth iptables let me make it clear: I've a router with tomcat7 on it, with an logon page. that the reply traffic needs to have the client's address as its destination, but if iptables can redirect the -j ACCEPT iptables -A FORWARD -p tcp -s 192. eth1 connects to the Internet through a router that NATs the traffic up stream. Improve this answer. 1 or destination lan ip is 192. 2 client: 3. netsh interface portproxy v4tov4 listenport=80 connectaddress=192. 1:80; sudo iptables -t nat -A OUTPUT -p tcp --dport 443 -j DNAT --to-destination Nov 28, 2013 · IP forwarding needs to enabled: edit /etc/sysctl. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. iptables -t nat -A PREROUTING -p udp --dport 53 -j DNAT --to-destination MYDNSIP:53 But it doesn't seem to work. Ping and telnet to open ports works just fine and I have the forward-flag turned on (net. ~$ dig +short serverfault. sudo sysctl -p /etc/sysctl. Viewed 2k times -1 . You can use any of the normal iptables selectors to match the right traffic; I picked IP address, protocol (tcp), and port. 72:5353. Thanks for putting this up. 3. a. : 10. 10 --sport 54321 -j ACCEPT # route packets arriving at external IP/port to LAN I have loopback IP 127. Follow Reading the debian documentation (maybe works for other distros) I used this to Sep 21, 2015 · Welcome to Serverfault. In this case, we redirect incoming TCP Mar 28, 2019 · iptables -t raw -F PREROUTING iptables -t nat -F PREROUTING # and possibly also iptables -t nat -F OUTPUT # if you also used the additional advised commmand On the other hand, also keep in mind that these commands clear all rules present in those tables, including those that might have been there because of other firewalls in place. I have a machine IP1 that sends packets to port 54321 of IP2. 2 Edit: Ignoring that you won't tell why you want to NAT traffic, that is intended for your machine and already arrived at your machine, let's consider how you can see if the traffic for 172. 1; Client I want to get Internet to from the router through the PC I have write following iptables rule but it is not working. 10 as IP and the other with 10. Credits: The question by @DT. iptables -t nat -A OUTPUT -p udp --dport 162 -j DNAT --to-destination <dest-ip>:1620 Share. 32. I want redirect trafic from IP to another IP and port. Commented Oct 28, 2008 at 13:41. 206. PiedPiper PiedPiper. Like: We have a number of iptables rules for forwarding connections, which are solid and work well. 155. 17. 10:80 The problem is that I create the ip tables rule from ansible and created it in different environments, where the ip address ranges are different, but I want to forward the 80 port to 192. 80 and I want. Example: Redirect Traffic to a Different IP. 3 on "Server B". How to achieve this on a centOS 5. sudo vi /etc/sysctl. ip_forward = 1 and add the following rules to iptables sudo iptables -t nat -A POSTROUTING --out-interface eth1 -j MASQUERADE sudo iptables -A FORWARD --in-interface eth0 -j ACCEPT This blog post has a template iptables rule to forward traffic, to and from the router to another ip address. Skip to main content. pchbfv ibppdy jxmq rrix afudzs rbkv wrjegq jmpwgr uzojfi dtyjgq