TWI469604B - Router and method of remote booting using the router - Google Patents

Description

Router and method for realizing remote starting operation system by using the router

The invention relates to a router, in particular to a router capable of supporting a remote start operating system of a client computer and a method for realizing a remote starting operating system by using the router.

Currently, most computer NICs come with PXE. The PXE (preboot execute environment) is a computer-free (ie, no hard disk) technology. PXE works in the network mode of Client/Server, and supports the client computer to download the mapping from the remote server through the network, and thus supports the startup process of the operating system from the network.

Traditionally, when using the PXE function of the network card to perform a remote boot operating system on the client computer or testing the PXE function of the network card, a PXE server connected to the client computer needs to be additionally set up, and the PXE server is provided. A DHCP (Dynamic Host Configuration Protocol) service needs to be installed. Since the DHCP service is installed, in order not to conflict with the original network of the client computer, a separate network needs to be established. However, the cost of setting up a PXE server and building a network is high.

In view of the above, it is necessary to propose a router and use the router to achieve remote The method of starting the operating system, which adds the PXE function, can be used to support the remote start operating system of the client computer.

A router includes: a DHCP/proxy DHCP service module, configured to respond to a DHCP Discover message packet sent by a client computer connected to the router, and allocate an IP address to the client computer; and start a service module for responding The Boot Service Discover message packet sent by the client computer, and the message packet including the remote boot image file name and the TFTP configuration parameter is provided to the client computer; and the MTFTP/TFTP service module is configured to receive the user terminal. When the request packet of the remote boot image is downloaded by the computer through the MTFTP protocol or the TFTP protocol, a connection based on the MTFTP protocol or the TFTP protocol is established.

The method for the client computer to remotely start the operating system by using the foregoing router includes: sending a DHCP Discover message packet to the router; receiving an IP address replied by the router in response to the DHCP Discover message packet, and setting the IP address to the client end The IP address of the computer; the Boot Service Discover message packet is sent to the router; the DHCPACK message packet containing the remote boot image file name and the TFTP configuration parameter replied by the router is received; according to the TFTP configuration parameter, the sending is downloaded to the router through the MTFTP or TFTP protocol. The request packet of the remote boot image corresponding to the remote boot image file name; downloading the remote boot image from the router through the MTFTP protocol or the TFTP protocol; and executing the remote boot image to complete the remote booting operation system of the client computer .

The foregoing router supports a method for starting a working system by a client computer, comprising: receiving a DHCP Discover message packet sent by a client computer; responding to the DHCP Discover message packet, and sending an IP address to the client computer; receiving the sending by the client computer Boot Service Discover message packet; according to the above Boot Service The Discover message packet sends a DHCPACK message packet including the remote boot image file name and the TFTP configuration parameter to the client computer; and receives a request message packet sent by the client computer through the MTFTP protocol or the TFTP protocol to download the remote boot image; and establishes a request message packet; A connection based on the MTFTP protocol or the TFTP protocol for the client computer to download the remote boot image through the connection.

Compared with the prior art, the router provided by the present invention and the method for realizing the remote starting operation system by using the router do not need to set up a PXE server and separately set up a network, and only need to add a PXE service to the router, so the method is simple. And can save costs.

1‧‧‧ router

10‧‧‧DHCP/Proxy DHCP Service Module

11‧‧‧Start service module

12‧‧‧MTFTP/TFTP Service Module

2‧‧‧Customer computer

20‧‧‧ network card

201‧‧‧PXE bootROM

21‧‧‧BIOS

1 is a structural diagram of a router in a preferred embodiment of the present invention.

2 is a system architecture diagram of a remote start operating system implemented by using the router of FIG. 1 in a preferred embodiment of the present invention.

3 is a flow chart of a method for a client computer 2 to implement a remote start operating system by using the router 1 of FIG. 1 in a preferred embodiment of the present invention.

4 is a flow chart of a method for the router in FIG. 1 to support the remote start operation system of the client computer 2 in the preferred embodiment of the present invention.

Referring to Figure 1, there is shown a block diagram of a router in a preferred embodiment of the present invention. The router 1 of the present invention includes a DHCP/Proxy DHCP service module 10, a startup service module 11, and an MTFTP/TFTP service module 12. The module 10-12 is a software program segment installed in the router 1 to implement or perform a certain function, and is more suitable for describing the execution process of the software in the router 1 than the software program itself, so the present invention is The description of the software program is described in modules. The functions implemented or completed by the module 10-12 will be described in FIG. 2 below.

Referring to FIG. 2, a system architecture diagram of a remote start operating system using the router 1 in the preferred embodiment of the present invention is shown. The router 1 is connected to a plurality of client computers 2 via an internal network or an external network (not shown in FIG. 2). Each of the client computers 2 includes a network card 20 with a PXE (preboot execution environment) function and a BIOS (basic input output system) 21. The NIC 20 has a built-in execution code PXE bootRom 201. The PXE function of the network card 20 is implemented by the PXE bootRom 201. The PXE bootRom 201 will automatically run after the client computer 2 is turned on.

The BIOS 21 is configured to initialize the network card 20 and the client computer 2 when the client computer 2 is turned on.

The DHCP (dynamic host configuration protocol)/proxy DHCP service module 10 is configured to respond to the DHCP Discover message packet sent by the PXE bootRom 201 of the network card 20 of the client computer 2 to the client. Computer 2 assigns an IP address.

The startup service module 11 is configured to respond to the Boot Service Discover message packet sent by the PXE bootRom 201 of the network card 20 of the client computer 2, and provide the remote boot image file name and TFTP (trivial file transfer) to the client computer 2. Protocol, simple file transfer protocol) message package for configuration parameters and other data.

The MTFTP (multicast trivial file transfer protocol, The multi-point simple file transfer protocol/TFTP service module 1 is configured to receive a request message packet sent by the PXE bootRom 201 in the network card 20 of the client computer 2 through the MTFTP protocol or the TFTP protocol to download the remote boot image. A connection based on the MTFTP protocol or the TFTP protocol.

Referring to FIG. 3, a flow chart of a method for implementing a remote start operating system by using the router 1 in FIG. 1 in the preferred embodiment of the present invention is shown.

In step S10, one or more client computers 2 connected to the router 1 are turned on.

In step S11, the BIOS 21 of the client computer 2 initializes the client computer 2 and the network card 20 therein.

In step S12, the PXE bootRom 201 in the network card 20 operates automatically.

In step S13, the PXE bootRom 201 sends a DHCP Discover message packet to the router 1.

In step S14, the PXE bootRom 201 receives the IP address replied by the DHCP/proxy DHCP service module 10 of the router 1 in response to the DHCP Discover message packet, and sets the IP address as the IP address of the client computer.

In step S15, the PXE bootRom 201 sends a Boot Service Discover message packet to the router 1.

In step S16, the PXE bootRom 201 receives the DHCPACK message packet replied by the router 1 and includes the remote boot image file name and the TFTP configuration parameter.

In step S17, the PXE bootRom 201 sends a request packet for downloading the remote boot image corresponding to the remote boot image file name to the router 1 through the MTFTP or TFTP protocol according to the TFTP configuration parameter.

In step S18, the PXE bootRom 201 downloads the remote boot image from the router 1 through the MTFTP protocol or the TFTP protocol.

Step S19: After the download is completed, the PXE bootRom 201 executes the remote boot image to complete the PXE boot of the client computer 2.

Referring to FIG. 4, in a preferred embodiment of the present invention, a flow chart of a method for the router in FIG. 1 to support the remote end of the operating system of the client computer 2 is shown.

In step S20, the router 1 receives the DHCP Discover message packet sent by the client computer 2.

In step S21, the DHCP/proxy DHCP service module 10 in the router 1 responds to the DHCP Discover message packet and sends an IP address to the client computer 2.

In step S22, the router 1 receives the Boot Service Discover message packet sent by the client computer 2.

In step S23, the startup service module 11 in the router 1 sends a DHCPACK message packet including the remote boot image file name and the TFTP configuration parameter to the client computer 2 according to the Boot Service Discover message packet.

In step S24, the router 1 receives the request message packet sent by the client computer 2 to download the remote boot image through the MTFTP protocol or the TFTP protocol.

In step S25, the MTFTP/TFTP service module 12 in the router 1 establishes a connection based on the MTFTP protocol or the TFTP protocol, so that the client computer 2 can download the remote boot image through the connection.

The above is only the preferred embodiment of the present invention, and has been used for a wide range of functions, and other equal changes or modifications have been made without departing from the spirit of the present invention. Decorations are to be included in the scope of the patent application below.

1‧‧‧ router

10‧‧‧DHCP/Proxy DHCP Service Module

11‧‧‧Start service module

12‧‧‧MTFTP/TFTP Service Module

Claims (6)

A router includes: a DHCP/proxy DHCP service module, configured to respond to a DHCP Discover message packet sent by a client computer connected to the router, and allocate an IP address to the client computer; and start a service module for responding The Boot Service Discover message packet sent by the client computer, and the message packet including the remote boot image file name and the TFTP configuration parameter is provided to the client computer; and the MTFTP/TFTP service module is configured to receive the user terminal. When the request packet of the remote boot image is downloaded by the computer through the MTFTP protocol or the TFTP protocol, a connection based on the MTFTP protocol or the TFTP protocol is established. The router of claim 1, wherein the client computer comprises a network card, and the network card has a PXE bootRom execution code. The router of claim 2, wherein the client computer further includes a BIOS for initializing the client computer and its network card when the client computer is turned on. A method for implementing a remote start operating system by using a router according to claim 1 of the patent application scope, comprising: sending a DHCP Discover message packet to a router; and receiving an IP address replied by the router in response to the DHCP Discover message packet, And setting the IP address to the IP address of the client computer; sending the Boot Service Discover message packet to the router; receiving the DHCPACK message packet of the remote startup image file name and the TFTP configuration parameter replied by the router; according to the TFTP configuration parameter , send to the router through MTFTP or TFTP protocol download The request packet of the remote boot image corresponding to the remote boot image file name; downloading the remote boot image from the router through the MTFTP protocol or the TFTP protocol; and executing the remote boot image to complete the remote boot operating system of the client computer . The method of claim 4, wherein before sending the DHCP Discover message packet to the router, the method further comprises: connecting the client computer to the router; opening the client computer; The BIOS of the computer initializes the client computer and the network card therein; and runs the PXE bootRom in the above network card. A method for supporting a remote start operation system of a client computer by using the router according to claim 1 of the patent application scope, comprising: receiving a DHCP Discover message packet sent by a client computer; responding to the DHCP Discover message packet, and sending an IP address to The client computer receives the Boot Service Discover message packet sent by the client computer, and sends a DHCPACK message packet including the remote boot image file name and the TFTP configuration parameter to the client computer according to the Boot Service Discover message packet; The request message packet of the remote boot image is downloaded through the MTFTP protocol or the TFTP protocol; and a connection based on the MTFTP protocol or the TFTP protocol is established, so that the client computer can download the remote boot image through the connection.