HP Officejet Pro X551 HP Officejet X Series - IT Administrators Install Guide - Page 17
CD Image File Descriptions
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When searching for a device using the IP address, WSD creates a TCP socket over port 80. This is usually only done under specific circumstances. See below. Windows XP Users Windows XP does not support the standard WSD protocol. We have developed an internal solution that operates almost identically to the way it's implemented for Windows Vista and Windows 7. The main difference is when you are searching for a device by IP address. For an IP addressinitiated search under XP, we will send out unicast UDP probes. Installing by providing an IP Address If you are installing via the command line and you provide an IP address to the command line, we use the IP address to find your device. However, for rediscovery purposes, we will attempt a unicast UDP probe or a TCP connection (to port 80). Your firewall software might block this type of activity. You will have to create a rule for the HPNetworkCommunicator.exe for it to establish communication. If you are installing via the graphical user interface and your device cannot be discovered through the multicast probe method, you will have the option to install the device by providing the IP address. If you get the option of installing by IP, it means that either your firewall is blocking the traffic or your network does not support multicasting. From the software's perspective it is the same thing. If it is a firewall issue and your device is on the same subnet as the computer, we recommend creating rules in your firewall software to allow for multicast probes from the HPNetworkCommunicator.exe. See Multicast Discovery for more information. Related Topics for Network Installs Multicast Discovery Off-Subnet Devices Updating the Software to Use a New IP Address CD Image File Descriptions This section describes the files that are on the CD image and when they are required. This will allow an administrator to set up an image that contains only the files necessary for the specified install. Color Key: Folders File Names Required Optional in some configurations Not required