diff --git a/spec/configuration/network_spec.rb b/spec/configuration/network_spec.rb
index ec3ace8..abaa49b 100644
--- a/spec/configuration/network_spec.rb
+++ b/spec/configuration/network_spec.rb
@@ -14,6 +14,32 @@
   end
 end
 
+# Management network
+puts 'Configuration'
+
+ip = ENV['TARGET_HOST']
+puts "HOST: #{ip}"
+
+describe 'Management network' do
+  it 'The Management network should contain an IP' do
+    expect(ip).to match(/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/)
+  end
+end
+
+# Sync network
+describe 'Sync network' do
+  sync = command('ip addr show').stdout
+  it 'Have a network sync' do
+    interfaces_with_ip = sync.scan(/inet\s+(\d+\.\d+\.\d+\.\d+)/).flatten
+    if ENV['IS_CLUSTER']
+      expect(interfaces_with_ip.length).to be >= 3
+    else
+      skip 'One node does not need sync interface'
+    end
+    puts "OUTPUT: #{interfaces_with_ip}"
+  end
+end
+
 # DNS
 describe 'DNS' do
   resolv_content = command('cat /etc/resolv.conf').stdout
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 247cb12..eec33ee 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -7,6 +7,11 @@
 set :backend, :ssh
 set :disable_sudo, true
 
+# spec/spec_helper.rb
+
+# Check if IS_CLUSTER environment variable is already set
+ENV['IS_CLUSTER'] ||= 'true' unless ENV.key?('IS_CLUSTER') && ENV['IS_CLUSTER'] == 'false'
+
 # ssh setup
 ENV['TARGET_HOST'] ||= '10.0.209.20'
 host = ENV['TARGET_HOST']
@@ -19,5 +24,4 @@
                      else
                        ENV['LOGIN_PASSWORD'] || 'redborder'
                      end
-
 set :ssh_options, options