diff --git a/AMWD.Common.AspNetCore/Extensions/ApplicationBuilderExtensions.cs b/AMWD.Common.AspNetCore/Extensions/ApplicationBuilderExtensions.cs
index 34b492f..ab8426e 100644
--- a/AMWD.Common.AspNetCore/Extensions/ApplicationBuilderExtensions.cs
+++ b/AMWD.Common.AspNetCore/Extensions/ApplicationBuilderExtensions.cs
@@ -20,10 +20,14 @@ namespace Microsoft.AspNetCore.Builder
 		/// <br/>
 		/// Additionally you can specify the proxy server by using <paramref name="address"/> or a <paramref name="network"/> when there are multiple proxy servers.
 		/// <br/>
-		/// When no <paramref name="address"/> oder <paramref name="network"/> is set, the default IPv4 private subnets are configured:<br/>
+		/// When no <paramref name="address"/> oder <paramref name="network"/> is set, the default subnets are configured:<br/>
+		/// - <c>127.0.0.0/8</c><br/>
 		/// - <c>10.0.0.0/8</c><br/>
 		/// - <c>172.16.0.0/12</c><br/>
-		/// - <c>192.168.0.0/16</c>
+		/// - <c>192.168.0.0/16</c><br/>
+		///
+		/// - <c>::1/128</c><br/>
+		/// - <c>fd00::/8</c>
 		/// </remarks>
 		/// <param name="app">The application builder.</param>
 		/// <param name="network">The <see cref="IPNetwork"/> where proxy requests are received from (optional).</param>
@@ -40,9 +44,17 @@ namespace Microsoft.AspNetCore.Builder
 
 			if (network == null && address == null)
 			{
+				// localhost
+				options.KnownNetworks.Add(new IPNetwork(IPAddress.Parse("127.0.0.0"), 8));
+				options.KnownNetworks.Add(new IPNetwork(IPAddress.Parse("::1"), 128));
+
+				// private IPv4 networks
 				options.KnownNetworks.Add(new IPNetwork(IPAddress.Parse("10.0.0.0"), 8));
 				options.KnownNetworks.Add(new IPNetwork(IPAddress.Parse("172.16.0.0"), 12));
 				options.KnownNetworks.Add(new IPNetwork(IPAddress.Parse("192.168.0.0"), 16));
+
+				// private IPv6 networks
+				options.KnownNetworks.Add(new IPNetwork(IPAddress.Parse("fd00::"), 8));
 			}
 
 			if (network != null)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index afa302f..a4a33b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - Added `ConfigureAwait(false)` to async calls where appropriate
+- Added localhost and private IPv6 subnet to `UseProxyHosting()`
 
 ### Changed