add python-netaddr to the bootstrap process as ansible uses it
diff --git a/bootstrap.sh b/bootstrap.sh
index b8e7f4f..5845c7f 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 sudo apt-get update
-sudo apt-get install -y software-properties-common git mosh dnsutils
+sudo apt-get install -y software-properties-common git mosh dnsutils python-netaddr
 sudo add-apt-repository -y ppa:ansible/ansible
 sudo apt-get update
 sudo apt-get install -y ansible