diff --git a/Gemfile b/Gemfile
index 9fc75ee37d0..f9edab7dac3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -58,6 +58,7 @@ gem 'httplog', '~> 1.8.0', require: false
 gem 'i18n'
 gem 'idn-ruby', require: 'idn'
 gem 'inline_svg'
+gem 'ipaddr', '~> 1.2'
 gem 'irb', '~> 1.8'
 gem 'kaminari', '~> 1.2'
 gem 'link_header', '~> 0.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 3aa782cbe6d..1797e38f97e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -343,6 +343,7 @@ GEM
       activesupport (>= 3.0)
       nokogiri (>= 1.6)
     io-console (0.8.2)
+    ipaddr (1.2.9)
     irb (1.18.0)
       pp (>= 0.6.0)
       prism (>= 1.3.0)
@@ -992,6 +993,7 @@ DEPENDENCIES
   i18n-tasks (~> 1.0)
   idn-ruby
   inline_svg
+  ipaddr (~> 1.2)
   irb (~> 1.8)
   jd-paperclip-azure (~> 3.0)
   json