Microsoft's Peer Name Resolution Protocol

[TechGate]

Introduction :
PNRP is a Microsoft protocol for name resolution in IPv6 networks. Such a network based on IPv6 and is possible without a server infrastructure. PNRP allows a computer's address on the local network and the Internet to link with the name and offer his services. PNRP works similar to file-sharing programs, the ready only part of the information of the name space as well as references to neighboring PNRP nodes. Windows XP already dominates the record. But it will be fully supported until Windows Vista (PNRP version 4). The remote support of Windows 7 and the network setup Home Groups use PNRP.

In Windows 7 much succeeds with a few clicks what previously required a serious fumbling router: For example, the remote support and connects easily through a local network Aimed at Home Groups are almost by. Itself The magic is based on IPv6 and the Peer Name Resolution Protocol It is not enough to offer one on one computer network service. The others who need to access it, find it too. There are three major difficulties: The IP address of the server is a bad-to-remember sequence of numbers and by the automatic network configuration on the LAN with DHCP and the address allocation by the provider at each dial, it can change at any time. In addition, most routers translate multiple addresses on the LAN to only one Internet address (NAT), which only in the direction from the LAN to the Internet works automatically. Who wants to do a service on the local network from the Internet accessible, must therefore deal with configuring port forwarding in the router.

[TechGate]

Some problems :
- Towards the third problem and part of the second Microsoft brings since Vista IPv6 into position enables every computer in the LAN permanent address, use one that its hardware address (MAC) is derived or randomly is seated, and huge address supply makes the NAT unnecessary. Teredo tunneling techniques such as Windows machines easily penetrate the IPv4 Internet and have a global IPv6 address can be contacted at. But that may change, and IPv6 addresses like 2001:0: d5c7: a2d6: 0: fbef: A649: f80e are to retain even worse than IPv4 addresses.

- To solve the rest of the basic problems that must therefore produce a name service. The DNS is not very sure, because it needs server. For a small LAN is not worth the trouble, and to get a globally valid DNS name for Internet services is associated with some effort. The old Windows Internet Naming Service (WINS) needs also a server and is recommended despite its name only on the LAN. The elderly still NetBIOS names that are in XP and Vista home networks use come from, although without a server, but are known to be unreliable and are not suitable for name on the Internet.

At Microsoft, we have chosen the great solution, and under the heading of "peer-to-peer networking," a series of protocols bundled, the IPv6-based networks without the server infrastructure to allow. The name component is responsible for the Peer Name Resolution Protocol (PNRP). It allows one computer, its address (es) in the LAN and the Internet to link with the name and to advertise his services. Windows XP systems since the control protocol, but only Vista brings full functionality with the. Microsoft has the protocol internals disclosed, so that PNRP implementations for other operating systems are technically possible. Current version is currently the 4 of the Protocol.


.NET Framework 4 :
In environments peer, the peer systems are used by specific name resolution to resolve their respective network locations (addresses, protocols and ports) from names or other identifiers. Previously, the peer name resolution was complicated by a temporary connectivity and other imperfections of the DNS (Domain Name System). The platform network peer-to-peer Microsoft Windows solves this problem by using the protocol PNRP (Peer Name Resolution Protocol) secure, scalable and dynamic registration and name resolution originally developed for Windows XP and upgraded in Windows Vista ™. This protocol works very differently solving systems of traditional names, offering exciting new opportunities for application developers. With PNRP protocol, the names of peers can be applied to the computer or specific applications / services on the individual computer. The peer name resolution includes an address, port and possibly an extended payload. The advantages of this system (fault tolerance, no bottleneck, name resolution, which never return to outdated addresses) makes this protocol a great solution for locating mobile users.

In terms of security, the names of peers can be advertised as secure (protected) or unsecured (unprotected). The PNRP protocol uses public key encryption that helps protect the names of peers cons spoofing. Both computers that services can be named with the PNRP protocol.

The PNRP protocol has the following characteristics:

- Distributed and almost entirely without server. The servers are only required for the boot process.
- Publication of names secure without the involvement of third parties. Contrary to the publication of DNS names, publication names PNRP is instantaneous and free.
- The PNRP protocol is updated in real time, which prevents the resolution of outdated addresses.
- The resolution of names via the PNRP protocol extends beyond computers because it also addresses service names.

[IngaleJI]

When trying to install on my new computer (preloaded with Windows 7) a security program, having problems with your Internet connection. It is unable to make a connection. When trying to resolve the problems, the message Peer Name Resolution Protocol service (PNRPsvc) or Peer Networking Identity Manager (p2pimsvc) is not running. How can I activate these services manually? Which path should I take? I am familiar with computers are not particularly good, please help me.

[TechGate]

Just enter times in the search field programs / files "Search" the search term 'services' a, then with you the results of others 'Local Services Show will find' and then you click on it to direct part of the Panel to come to this. Here you will now see the services with their status and the set kind of launching. With me are like 'Peer Name Resolution Protocol "," Peer Networking Grouping "and" Peer Networking Identity Manager' on a manual start as Local Service, and are started. You can right click on each service to the 'View Properties' and there, for example change the start type. Read before you ask for the individual 'support when configuring the startup options for services' with, because the services are partially dependent on each other (see tab 'dependencies') and with incorrect settings will be any problems may increase even further. If that did not you called 'security program' to disable this service, it will probably perform such services themselves. Or even arrange the (manual) start these services, then what is not being done. In both cases, I would assume that this program is configured incorrectly and its own engagement in the services may be counterproductive. Before you even pretending something in the services you better here sometimes call this program. Maybe someone has the necessary experience so that, at least one could but find out whether the problem is known and how it would resolve.