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How to redirect packets received from one network interface to another?
If all that is configured correctly it will work. An alternative to configuring the correct gateway on the machines on 10.80.1.0/24 would be to enable ip masquerading. Then your ubuntu machine will fake the the FROM address and substitute 10.80.1.87 as the source where 10.10.10.45 used to be.
How to forward a TCP packet to another port?
As soon as a TCP packet with destination port 9999 arrives at server A, it should be forwarded to server B (ip: 10.2.2.2). Before redirecting the TCP-packet to the other machine, the packet needs to be modified so that it get’s sent back to server A before sending back to the original host.
How to do port forwarding to multiple devices on the same port?
Multiple devices that you need to connect to using the same port Navigate to Security>Zone Firewall> Port Forward and Proxy Put in the IP of the computer you want the first rule to forward RDP traffic to Put in the IP of the computer you want the second rule to forward RDP traffic to
How to redirect DNS to different ports Stack Overflow?
If you use “Arboristal.com” as your “a” record hackers can go in your router settings and hack your network) priority – 0, weight – 0 and port – the port you want to use. (i know this because i was in the same situation) Do the same for any domain provider. (sorry if i made spell mistakes)
When to use DSR instead of primary IP?
The DSR approach is really only appropriate when the server address is not the primary IP of any of the hosts. Each host need to have a primary IP, which is not the DSR IP.
How to handle return packets on a second host?
Use the naive (but not working) solution on the first host. Then handle the return packets on the second host by doing a SNAT on the return traffic. A rule could look like iptables -t nat -A OUTPUT -p tcp –sport 80 -j SNAT –to-source 192.168.12.87