The NAT node
Starting with GNS3 2.0 a NAT node is available. This node allow you to a connect a topology to internet via a NAT.But your topology is not accessible from the internet.
It’s usefull when you need to download stuff from internet (package, licence check…). And it’s easier to use than the Cloud node.
The NAT node require the GNS3 VM or a Linux computer with libvirt installed.
By default the NAT node run a DHCP server that will give you an ip in the range 192.168.122.0/24.