Validate an IP is given for a private network [GH-1788]

CHANGELOG.md

@@ -36,6 +36,7 @@ BUG FIXES:
   - `config.vm.guest` properly forces guests again. [GH-1800]
   - The `read_ip_address` capability for linux properly reads the IP
     of only the first network interface. [GH-1799]
+  - Validate that an IP is given for a private network. [GH-1788]
 
 ## 1.2.2 (April 23, 2013)
 

plugins/kernel_v2/config/vm.rb

@@ -385,6 +385,14 @@ module VagrantPlugins
               fp_host_ports.add(options[:host])
             end
           end
+
+          if type == :private_network
+            if options[:type] != :dhcp
+              if !options[:ip]
+                errors << I18n.t("vagrant.config.vm.network_ip_required")
+              end
+            end
+          end
         end
 
         # We're done with VM level errors so prepare the section

templates/locales/en.yml

@@ -613,6 +613,8 @@ en:
         nfs_requires_host: |-
           Using NFS shared folders requires a host to be specified
           using `config.vagrant.host`.
+        network_ip_required: |-
+          An IP is required for a private network.
         network_fp_host_not_unique: |-
           Forwarded port '%{host}' (host port) is declared multiple times
         network_fp_requires_ports: |-