how to use from jpegBitmapDecoder

It's nearly impossible to help a person who fails to understand that the URI "http://192.168.1.30" is the local address, won't be visible through the Web.

Now, from the standpoint of HTTP user, the IP camera is nothing but a Web server, so you can get the image using the class System.Net.HttpWebRequest. Please see:
http://msdn.microsoft.com/en-us/library/system.net.webrequest.aspx[^],
http://msdn.microsoft.com/en-us/library/system.net.httpwebrequest.aspx[^].

For the code sample, please see, for example: http://louisabeyta.com/2012/01/17/c-code-to-view-ip-camera-images/[^].

As to the database storage for images, honestly, it's not good to answer the question again, after it was answered so many times. Please see: http://www.codeproject.com/search.aspx?doctypeid=5&q=database+%28image+OR+images+OR+bitmap+OR+bitmaps%29[^].

—SA