The network address translation table (or "nat") that is made available to iptables is merely a "configuration database" for NAT mappings only, and not intended for filtering of any kind. iptable_filter module Registers the filter table, used for general-purpose filtering (firewalling). security_filter module
Linux: Iptables List and Show All NAT IPTables Rules Aug 17, 2017 How to Set up Port Forwarding with iptables | Ivo Berger Let's break that down. -t nat tells iptables that we want to work on the Network Address Translation (NAT) table. We add our rule to the PREROUTING chain as we want to re-route packets and select them based on protocol (-p tcp), destination (-d 32.0.0.1) and port (--dport 8080).
Iptables Tutorial: Ultimate Guide to Linux Firewall
iptables rules to forward tftp via NAT - Unix & Linux Secondly, I added iptables rules on the PC to forward and NAT traffic to and from the VPN, where 192.168.11.0/24 is the private subnet on the local Ethernet, and the remote tftp server is on the 172.16.0.0/16 subnet via tun0:
Like every other iptables command, it applies to the specified table (filter is the default), so NAT rules get listed by iptables -t nat -n -L Please note that it is often used with the -n option, in order to avoid long reverse DNS lookups.
Iptables Tutorial: Ultimate Guide to Linux Firewall Jan 28, 2020 7.4. FORWARD and NAT Rules Red Hat Enterprise Linux 4
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