0
DHCP stands for dynamic host configuration protocol. It is oftenly used to dynamically assign ip addresses to the hosts connected within a lan.Dhcp works by taking a pool of IPs that is specified by an administrator and assigns each ip to a host that is up.whenever the host gets down the dhcp takes back the ip assigned and stores it back in that pool.
EX: if there are 100 PCs and we need to give ip addresses to all of them then, instead of manually assigning static ip addresses to all the PCs, we can use the DHCP to assign dynamic ips to hosts.The hosts connected will only need to obtain the ip by going to Network Places-->Properties-->Lan-->Properties-->TCP/IP-->Properties-->obtain ip dynamically-->OK-->Apply.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Advantage of dhcp over bootp?
1. DHCP was designed to replace the older BOOTP 2. BOOTP can only provide an IP to a computer while it is booting while DHCP can provide an IP when the OS is already loaded 3. DHCP is primarily used to seamlessly provide IP addresses to computers while BOOTP is used to configure and boot diskless computers or thin clients 4. BOOTP has a 30 day lease on the IP address as a default while DHCP only sets 8 as a default 5. DHCP can automatically rebind or renew their leases while BOOTP requires a system restart
How are IP addresses assigned to hosts?
Usually, in dynamic addressing models, the host obtains its IP address via DHCP - an administrator sets up a pool of available addresses in an IP range (called a scope) and gives them to clients as they ask for addresses.
What are two reasons you would use DHCP on your network?
The Dynamic Host Configuration Protocol (DHCP) is a network management protocol commonly used for (among other things) assigning dynamic IP addresses to network clients. The primary benefit of using this technology is you can take a finite amount of IP address space and partition it out to transient users as it is needed, reclaiming addresses no longer in use. The use of DHCP also saves end users and desktop administrators from manually assigning IP addresses to systems. Let's look at how DHCP works.When configuring DHCP, the network administrator sets a value known as the DHCP lease. This is the amount of time a system may retain an IP address without contacting the DHCP server. When the time expires, the system must reach out to the server and request a renewal of the DHCP lease. Generally speaking, DHCP leases are set to a long period of time (measured in days) on stable networks where the same systems are generally present from day-to-day. On the other hand, networks with many transient users (such as public hotspots) typically have short lease times to allow the efficient reuse of addresses.DHCP churn is a term used to describe the fact that different systems may obtain the same IP address from a DHCP server when the first system's lease expires. This really isn't a problem, except in two special cases:You're trying to track systems for some purpose and don't have access to the DHCP logs. For example, if you're maintaining a spam blacklist and a spamming system shows up on your blacklist with a DHCP-provided address, you may inadvertently block future users of that address from sending mail.You're a researcher measuring the prevalence of some phenomenon across the Internet and use IP addresses to track systems. If a single system exhibits your target behavior, but has many different dynamically assigned addresses, it might skew your results.The bottom line is, unless you're in one of those two very special cases, DHCP churn isn't a big deal. You should set your DHCP lease lifetime based upon your expected users needs and not worry about this issue.*This answer was taken from the related link.
How do you create a rule in ISA Server 2004?
Answer:Firewall Policy:............... ISA client Request is sent Authentication capabilityWeb Proxy by IP address or FQDN depending on user input Yes(HTTP/HTTPS and tunneled FTP)Firewall always by IP address (*) Yes(all TCP/UDP based protocols)SecureNET always by IP address (*) No Matching Criteria:.................. 1: Protocol: one or more protocol definitions with an outbound direction for the primary connection.2: From (source): one or more network objects which can include Network, Network Sets, Computers, Computer Sets, Address Ranges and Subnets.3: Schedule: any schedules defined.4: To (destination): one or more network objects which can include Network, Network Sets, Computers, Computer Sets, Address Ranges, Subnets, Domain Name Sets and URL Sets.5: Users: one or more user objects which can include All Users, All Authenticated Users, System and Network Service, and any custom defined User Set.6: Content groups: any content type set defined.
Are there any companies which specialize in client services?
There are many companies which specialize in client services. There is an website called daytonaemployment, which sets out all the different types of clienet services.
What is specific address?
Specific or static? Each computer has an address, most of the time a TCP/IP address in a pattern of four sets of three numbers. There's also MAC address, which is a pattern of 8 sets of 2 digits, which are assigned to every network adapter.
What if your iPod touch connects to your network with a stable connection and the ip address and dns cache stuff still doesn't auto fill out?
It is probable that the network that you are connectiong to does not use a DHCP server, meaning that each computer sets its own IP and DNS servers, rather than being assigned one by a DHCP server. Most routers serve as the DHCP servers for their network(especially in home networks). If you know the DNS servers that you use elsewhere, manually assign them in the iPod, and try to find the router's ip and use the first three sections of it and then add your own number(greater than zero but less than 255, 1-10 are your best bets though) as the last section.
What is the ready sets email address?
The Ready Set does not have an email address like most famous peoplebut I wish he did as a teenager.
What is the protocoll of the Internet?
If you are referring to IP address, this is a special identification number that is assigned to all machines connected to the internet or intranet. It is comprised of 4 sets of number ie. (64.54.123.26) Where each number can be anything from 0-255. This number is unique to each system and acts like a physical address for your computer. When you send a request for data this address is attached so the machine you send it to can know where to send its response. No two computers have this number.
In my computer center ip is assigned automatically by dhcp . But some time IP is not set to my PC .I will come 168.254.1.1?
It's hard to speculate about the problem, but DHCP has three methods how IP might be assigned to he machine. Manual (You set which machine which IP has), Dynamic (When you machine asks for IP and it gets from free IP pool and it can ask every time the same IP, extend it's usage. In this case you might loose your IP and you will get different one.) and Automatic (DHCP sets IP to machine permanently, it uses MAC-IP relation. Changing the MAC, might change your IP).
What is the BOOTP protocol used for where might you find it in Windows network infrastructure?
BootP (RFC951) provides * a unique IP address to the requester (using port 67) similar to the DHCP request on port 68 AND * can provide (where supported) the ability to boot a system without a hard drive (ie: a diskless client) Apple OS X 10.* Server supports BootP (albeit) renamed as NetBoot. The facility allows the Admin to maintain a selected set of configurations as boot images and then assign sets of client systems to share(or boot from) that image. For example Accounting, Management, and Engineering departments have elements in common, but which can be unique from other departments. Performing upgrades and maintenance on three images is far more productive that working on all client systems individually. Startup is obviously network intensive, and beyond 40-50 clients, the Admin needs to carefully subnet the infrastructure, use gigabit switches, and host the images local to the clients to avoid saturating the network. This will expand the number of BootP servers and multiply the number of images, but the productivity of 1 BootP server per 50 clients is undeniable :) Sunmicro, Linux, and AIX RS/600 all support BootP. Todate, Windows does not support booting "diskless clients".
What is the correct form of address for an e-8 who is a first sergeant?
The Sets the branches of the armed forces apart.
