How to redirect a UDP port in iptables?

The syntax is as follows to redirect udp $srcPortNumber port to $dstPortNumber: iptables -t nat -A PREROUTING -i eth0 -p udp –dport $srcPortNumber -j REDIRECT –to-port $dstPortNumber. Replace eth0 with your actual interface name. The following syntax match for source and destination ips:

How to redirect a port in a NAT table?

You can easily redirect incoming traffic by inserting rules into PREROUTING chain of the nat table. You can set destination port using the REDIRECT target. The syntax is as follows to redirect tcp $srcPortNumber port to $dstPortNumber:

How to redirect network traffic to a new IP using?

The first thing to do is do enable IP forwarding. This is done either by using: Then, we will add a rule telling to forward the traffic on port 1111 to ip 2.2.2.2 on port 1111: and finally, we ask IPtables to masquerade: Optionally, you could only redirect the traffic from a specific source/network with, for a host only:

How to redirect an UDP port in nixcraft?

The syntax is as follows to redirect tcp $srcPortNumber port to $dstPortNumber: The syntax is as follows to redirect udp $srcPortNumber port to $dstPortNumber: Replace eth0 with your actual interface name. The following syntax match for source and destination ips:

How to use tcpdump to capture a packet?

Packet Capturing Options Switch Syntax Description -i any tcpdump -i any Capture from all interfaces -i eth0 tcpdump -i eth0 Capture from specific interface ( Ex Eth -c tcpdump -i eth0 -c 10 Capture first 10 packets and exit -D tcpdump -D Show available interfaces

Where can I find the iptables rule list?

You can now list the iptables rules, and should see your new PREROUTING and POSTROUTING tcp rules: Enable tcpdump for port 443 of the proxyVM so you can see the traffic flowing through from the client.