/// <summary>
        /// Click handler for the getIpConfig button.
        /// </summary>
        /// <param name="sender">The caller of this method.</param>
        /// <param name="e">The arguments associated with this event.</param>
        private void GetIPConfig_Click(object sender, RoutedEventArgs e)
        {
            this.ClearOutput();
            this.EnableConnectionControls(false);
            this.EnableDeviceControls(false);

            StringBuilder sb      = new StringBuilder();
            Task          getTask = new Task(
                async() =>
            {
                sb.Append(this.MarshalGetCommandOutput());
                sb.AppendLine("Getting IP configuration...");
                this.MarshalUpdateCommandOutput(sb.ToString());

                try
                {
                    IpConfiguration ipconfig = await portal.GetIpConfig();

                    foreach (NetworkAdapterInfo adapterInfo in ipconfig.Adapters)
                    {
                        sb.Append(" ");
                        sb.AppendLine(adapterInfo.Description);
                        sb.Append("  MAC address :");
                        sb.AppendLine(adapterInfo.MacAddress);
                        foreach (IpAddressInfo address in adapterInfo.IpAddresses)
                        {
                            sb.Append("  IP address :");
                            sb.AppendLine(address.Address);
                        }
                        sb.Append("  DHCP address :");
                        sb.AppendLine(adapterInfo.Dhcp.Address.Address);
                    }
                }
                catch (Exception ex)
                {
                    sb.AppendLine("Failed to get IP config info.");
                    sb.AppendLine(ex.GetType().ToString() + " - " + ex.Message);
                }

                this.MarshalUpdateCommandOutput(sb.ToString());
            });

            Task continuationTask = getTask.ContinueWith(
                (t) =>
            {
                this.MarshalEnableDeviceControls(true);
                this.MarshalEnableConnectionControls(true);
            });

            getTask.Start();
        }