In managing a network can be done by making a static or dynamic configuration.For a simple network can use a static configuration where the server and each client is configured manually. This can be done because the computer is handled is still small. How about an already large network? Configuration can be done with dynamic configuration, where the administrator does not need to handle the configuration of each computer in the network. it can be done with the Dynamic Host Configuration Protocol (DHCP), which is the standard of teaching by the Internet Engineering Task Force (IETF) to provide configuration parameters to Internet hosts.
According to Berry Kercheval (2001) DHCP provides two main services on network clients. The first allocates an IP network address for the client. This address may be temporary address is taken from the address provided by the server, or a permanent address as determined by local system administrators and only remembered by the server. Second, DHCP allows the storage parameters for the client on the network. Administrators can provide parameters to the individual client or group, and the DHCP server will store it and give it to clients who need to know, for example, the IP address of its default router, and what needs to be done to get the fonts in X Windows System.
According to Berry Kercheval (2001) DHCP provides two main services on network clients. The first allocates an IP network address for the client. This address may be temporary address is taken from the address provided by the server, or a permanent address as determined by local system administrators and only remembered by the server. Second, DHCP allows the storage parameters for the client on the network. Administrators can provide parameters to the individual client or group, and the DHCP server will store it and give it to clients who need to know, for example, the IP address of its default router, and what needs to be done to get the fonts in X Windows System.
In the DHCP we need a "relay agent", why?
In his book, Berry Kercheval (2001) describes the DHCP client should start from the beginning to the initial DHCP broadcast message-DISCPVER her because they did not know anything about networks where they exist. Most routers are configured to not pass broadcast traffic, so if we need to put the DHCP service on a large network is divided into several subnets, then we put pperlu DHCP server on each subnet, so that they can receive broadcast messages from any potential DHCP clients .This can not be fully accepted by many network managers. Basically, these machines are not free, and DHCP traffic from one subnet may probably dense enough to allow all these computers. We may be associated with fewer servers if we allow the device or a router that acts as a "relay agent", which forward messages between clients and servers.
In his book, Berry Kercheval (2001) describes the DHCP client should start from the beginning to the initial DHCP broadcast message-DISCPVER her because they did not know anything about networks where they exist. Most routers are configured to not pass broadcast traffic, so if we need to put the DHCP service on a large network is divided into several subnets, then we put pperlu DHCP server on each subnet, so that they can receive broadcast messages from any potential DHCP clients .This can not be fully accepted by many network managers. Basically, these machines are not free, and DHCP traffic from one subnet may probably dense enough to allow all these computers. We may be associated with fewer servers if we allow the device or a router that acts as a "relay agent", which forward messages between clients and servers.
So little introduction about the Dynamic Host Configuration Protocol (DHCP), may be useful for all my friends. To be able to find out more details about DHCP, more information can be found in books that discuss DHCP or from the Internet media. In conclusion I thank you.
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