Nov 22, 2018

Iptables nat masquerade hides the address translation using iptables. Address translation is possible using iptables. There is an inbuilt nat table in iptables. It includes PREROUTING, OUTPUT, and POSTROUTING chains. In addition, the masquerade is a type of network address translation. This allows hosts on a private network to use the public IP. How to configure NAT in Iptables on CentOS 6 The rule uses the NAT packet matching table (-t nat) and specifies the built-in POSTROUTING chain for NAT (-A POSTROUTING) on the firewall’s external networking device (-o eth0).POSTROUTING allows packets to be altered as they are leaving the firewall’s external device. The -j MASQUERADE … IPtables PREROUTING, POSTROUTING for mixed interfaces via Jul 14, 2016

Jul 14, 2016

MASQUERADE is an iptables target that can be used instead of SNAT target (source NAT) when external ip of the inet interface is not known at the moment of writing the … NAT with Linux and iptables - Tutorial (Introduction) Network Address Translation generally involves "re-writing the source and/or destination addresses of IP packets as they pass through a router or # Connect a LAN to the internet $> iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE. This command can be explained in the following way: $> iptables -t nat -A POSTROUTING …

NAT (partage de connection Internet) commutation entre

iptables -t nat -A POSTROUTING -p TCP -j MASQUERADE --to-ports 1024-31000: Explanation: The --to-ports option is used to set the source port or ports to use on outgoing packets. Either you can specify a single port like --to-ports 1025 or you may specify a port range as --to-ports 1024-3000. In other words, the lower port range delimiter and NAT with iptables : super fast tutorial $ iptables -t nat -A POSTROUTING -s @priv/mask -j MASQUERADE. We can modify every packets coming from the subnetwork @priv to get masqueraded. $ iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE. Or we can just tell all the network to get masqueraded. And this is it. No PREROUTING Needed. Again, you're welcome ;) IPTables Masquerading Issue | Howtoforge - Linux Howtos Aug 22, 2011 New iptables Gotchas - SNAT VS MASQUERADE Feb 02, 2016