📝 improve kvm guide

README.md

@@ -1,6 +1,8 @@
 # XYNat
 NAT with integrated firewall for use with VMs and containers
 
+
+
 ## Setup Instructions
 Install required tools (Debian):
 ```console
@@ -19,6 +21,8 @@ Clone git repository:
 # git clone https://git.tjdev.de/DrMaxNix/xynat.git
 ```
 
+
+
 ## Usage
 ```
 Usage: ./xynat [OPTIONS]
@@ -60,9 +64,17 @@ Examples:
         ./xynat --remove --iface "br2"
 ```
 
-## Example `/etc/network/interfaces`
-#### Host
-```
+
+
+## Example: Isolate a KVM Virtual Machine
+#### Host (`/etc/network/interfaces`)
+```bash
+auto enp1s0
+iface enp1s0 inet static
+	# ...
+	
+	up ifconfig enp1s0:1 10.0.0.4 netmask 255.0.0.0 up
+
 auto br-vm-test
 iface br-vm-test inet static
 	bridge_ports none
@@ -73,8 +85,8 @@ iface br-vm-test inet static
 	post-down /opt/xynat/xynat
 ```
 
-#### Guest
-```
+#### Guest (`/etc/network/interfaces`)
+```bash
 auto eth0
 iface eth0 inet static
 	address 192.168.234.2