diff --git a/salt/Vagrantfile b/salt/Vagrantfile
index f0bb36e..8f6bded 100644
--- a/salt/Vagrantfile
+++ b/salt/Vagrantfile
@@ -1,18 +1,23 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# Salt lab environment with one master and four minions
+
 Vagrant.configure("2") do |config|
   config.nfs.verify_installed = false
   config.vm.synced_folder '.', '/vagrant', type: 'rsync'
   config.vm.define "salt", primary: true do |salt|
     salt.vm.box = "peru/ubuntu-20.04-server-amd64"
     salt.vm.hostname = "salt"
-    salt.vm.network "private_network", ip: "192.168.66.120"
+    salt.vm.network "private_network", ip: "192.168.100.120"
     salt.vm.provider :libvirt do |libvirt|
       libvirt.memory = 1024
     end
     salt.vm.provision "shell", inline: <<-SHELL
-      echo "192.168.66.121 minion01" | sudo tee -a /etc/hosts
-      echo "192.168.66.122 minion02" | sudo tee -a /etc/hosts
-      echo "192.168.66.123 minion03" | sudo tee -a /etc/hosts
-      echo "192.168.66.124 minion04" | sudo tee -a /etc/hosts
+      echo "192.168.100.121 minion01" | sudo tee -a /etc/hosts
+      echo "192.168.100.122 minion02" | sudo tee -a /etc/hosts
+      echo "192.168.100.123 minion03" | sudo tee -a /etc/hosts
+      echo "192.168.100.124 minion04" | sudo tee -a /etc/hosts
       sudo apt-get update
       sudo apt-get install curl -y
       curl -o bootstrap-salt.sh -L https://bootstrap.saltproject.io
@@ -24,9 +29,9 @@ Vagrant.configure("2") do |config|
   config.vm.define "minion01" do |minion01|
     minion01.vm.box = "peru/ubuntu-20.04-server-amd64"
     minion01.vm.hostname = "minion01"
-    minion01.vm.network "private_network", ip: "192.168.66.121"
+    minion01.vm.network "private_network", ip: "192.168.100.121"
     minion01.vm.provision "shell", inline: <<-SHELL
-      echo "192.168.66.120 salt" | sudo tee -a /etc/hosts
+      echo "192.168.100.120 salt" | sudo tee -a /etc/hosts
       sudo apt-get update
       sudo apt-get install curl -y
       curl -o bootstrap-salt.sh -L https://bootstrap.saltproject.io
@@ -37,9 +42,9 @@ Vagrant.configure("2") do |config|
   config.vm.define "minion02" do |minion02|
     minion02.vm.box = "debian/bullseye64"
     minion02.vm.hostname = "minion02"
-    minion02.vm.network "private_network", ip: "192.168.66.122"
+    minion02.vm.network "private_network", ip: "192.168.100.122"
     minion02.vm.provision "shell", inline: <<-SHELL
-      echo "192.168.66.120 salt" | sudo tee -a /etc/hosts
+      echo "192.168.100.120 salt" | sudo tee -a /etc/hosts
       sudo apt-get update
       sudo apt-get install curl -y
       curl -o bootstrap-salt.sh -L https://bootstrap.saltproject.io
@@ -50,9 +55,9 @@ Vagrant.configure("2") do |config|
   config.vm.define "minion03" do |minion03|
     minion03.vm.box = "generic/rocky9"
     minion03.vm.hostname = "minion03"
-    minion03.vm.network "private_network", ip: "192.168.66.123"
+    minion03.vm.network "private_network", ip: "192.168.100.123"
     minion03.vm.provision "shell", inline: <<-SHELL
-      echo "192.168.66.120 salt" | sudo tee -a /etc/hosts
+      echo "192.168.100.120 salt" | sudo tee -a /etc/hosts
       curl -o bootstrap-salt.sh -L https://bootstrap.saltproject.io
       sudo sh bootstrap-salt.sh
       sudo systemctl start salt-minion
@@ -61,12 +66,13 @@ Vagrant.configure("2") do |config|
   config.vm.define "minion04" do |minion04|
     minion04.vm.box = "generic/centos7"
     minion04.vm.hostname = "minion04"
-    minion04.vm.network "private_network", ip: "192.168.66.124"
+    minion04.vm.network "private_network", ip: "192.168.100.124"
     minion04.vm.provision "shell", inline: <<-SHELL
-      echo "192.168.66.120 salt" | sudo tee -a /etc/hosts
+      echo "192.168.100.120 salt" | sudo tee -a /etc/hosts
       curl -o bootstrap-salt.sh -L https://bootstrap.saltproject.io
       sudo sh bootstrap-salt.sh
       sudo systemctl start salt-minion
     SHELL
   end
 end
+