id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
17918	NAT Network provides connectivity between VMs but not to the outside world.	Sakis Hrist		"== System Information: ==
* Linux Mint 19
* VirtualBox 5.2.10_Ubuntu r121806
* Installed VirtualBox Extension Pack 5.2.16r123759

== Description of the issue: ==
I have created a NAT Network with the following parameters:

{{{
Name:        RHCE original
Network:     192.168.4.0/24
Gateway:     192.168.4.1
IPv6:        No
Enabled:     Yes
}}}

And DHCP:

{{{
NetworkName:    RHCE original
IP:             192.168.4.3
NetworkMask:    255.255.255.0
lowerIPAddress: 192.168.4.4
upperIPAddress: 192.168.4.254
Enabled:        Yes
}}}

I have two VMs like so:

{{{
VM1: 192.168.4.210/24
VM2: 192.168.4.4/24
}}}

The DHCP works as expected and networking between the VMs seems to work fine. What does not work is access to the outside, including access to the gateway. I have tried this on another machine as well and it does not work as well.

'''Notes:'''

* NAT (not NAT Network) works properly.
* No additional interface or bridge on the host is created when the network is created/started (probably this is OK, but I though it worth mentioning)

== Expected behavior: ==

Being able to perform ping 8.8.8.8 from the guests and to return a reply.

== Attached files ==

* VBoxSVC.log while starting the VM
* VBox.log from the VM
* tcpdump from while performing ping 8.8.8.8"	defect	closed	network/NAT	VirtualBox 5.2.10	invalid			Linux	Linux