Changes styles as suggested by @barronpm

Added addtional comments & source type as per intellisense suggestion
change code as per sonacloud

MediaBrowser.Common/Net/INetworkManager.cs

@@ -11,14 +11,21 @@ namespace MediaBrowser.Common.Net
     {
         event EventHandler NetworkChanged;
 
+        /// <summary>
+        /// Contains a function to return the list of user defined LAN addresses
+        /// </summary>
         Func<string[]> LocalSubnetsFn { get; set; }
 
         /// <summary>
-        /// Gets a random port number that is currently available.
+        /// Gets a random port TCP number that is currently available.
         /// </summary>
         /// <returns>System.Int32.</returns>
         int GetRandomUnusedTcpPort();
 
+        /// <summary>
+        /// Gets a random port UDP number that is currently available.
+        /// </summary>
+        /// <returns>System.Int32.</returns>
         int GetRandomUnusedUdpPort();
 
         /// <summary>
@@ -34,21 +41,57 @@ namespace MediaBrowser.Common.Net
         /// <returns><c>true</c> if [is in private address space] [the specified endpoint]; otherwise, <c>false</c>.</returns>
         bool IsInPrivateAddressSpace(string endpoint);
 
+        /// <summary>
+        /// Determines whether [is in private address space 10.x.x.x] [the specified endpoint] and exists in the subnets returned by GetSubnets().
+        /// </summary>
+        /// <param name="endpoint">The endpoint.</param>
+        /// <returns><c>true</c> if [is in private address space 10.x.x.x] [the specified endpoint]; otherwise, <c>false</c>.</returns>
+        bool IsInPrivateAddressSpaceAndLocalSubnet(string endpoint);
+
         /// <summary>
         /// Determines whether [is in local network] [the specified endpoint].
         /// </summary>
         /// <param name="endpoint">The endpoint.</param>
         /// <returns><c>true</c> if [is in local network] [the specified endpoint]; otherwise, <c>false</c>.</returns>
         bool IsInLocalNetwork(string endpoint);
-
+        
+        /// <summary>
+        /// Investigates an caches a list of interface addresses, excluding local link and LAN excluded addresses
+        /// </summary>
+        /// <returns>The list of ipaddresses</returns>
         IPAddress[] GetLocalIpAddresses();
-
+       
+        /// <summary>
+        /// Checks if the give address false within the ranges givin in [subnets]. The addresses in subnets can be hosts or subnets in the CIDR format.
+        /// </summary>
+        /// <param name="addressString">The address to check</param>
+        /// <param name="subnets">If true, check against addresses in the LAN settings which have [] arroud and return true if it matches the address give in address</param>
+        /// <returns><c>false</c>if the address isn't in the subnets, <c>true</c> otherwise</returns>
         bool IsAddressInSubnets(string addressString, string[] subnets);
 
+        /// <summary>
+        /// Returns true if address is in the LAN list in the config file
+        /// </summary>
+        /// <param name="address">The address to check</param>
+        /// <param name="excludeInterfaces">If true, check against addresses in the LAN settings which have [] arroud and return true if it matches the address give in address</param>
+        /// <param name="excludeRFC">If true, returns false if address is in the 127.x.x.x or 169.128.x.x range</param>
+        /// <returns><c>false</c>if the address isn't in the LAN list, <c>true</c> if the address has been defined as a LAN address</returns>
         bool IsAddressInSubnets(IPAddress address, bool excludeInterfaces, bool excludeRFC);
 
+        /// <summary>
+        /// Checks if address is in the LAN list in the config file
+        /// </summary>
+        /// <param name="address1">Source address to check</param>
+        /// <param name="address2">Destination address to check against</param>
+        /// <param name="subnetMask">Destination subnet to check against</param>
+        /// <returns><c>true/false</c>depending on whether address1 is in the same subnet as IPAddress2 with subnetMas</returns>
         bool IsInSameSubnet(IPAddress address1, IPAddress address2, IPAddress subnetMask);
 
+        /// <summary>
+        /// Returns the subnet mask of an interface with the given address
+        /// </summary>
+        /// <param name="address">The address to check</param>
+        /// <returns>Returns the subnet mask of an interface with the given address, or null if an interface match cannot be found</returns>
         IPAddress GetLocalIpSubnetMask(IPAddress address);
     }
 }