Answer Posted / valsan
Short for Dynamic Host Configuration Protocol, a protocol
for assigning dynamic IP addresses to devices on a network.
With dynamic addressing, a device can have a different IP
address every time it connects to the network. In some
systems, the device's IP address can even change while it
is still connected. DHCP also supports a mix of static and
dynamic IP addresses.
Dynamic addressing simplifies network administration
because the software keeps track of IP addresses rather
than requiring an administrator to manage the task. This
means that a new computer can be added to a network without
the hassle of manually assigning it a unique IP address.
Many ISPs use dynamic IP addressing for dial-up users.
DHCP Process
How DHCP Works in an Ethernet/IP LAN environment and
assumes the client is obtaining a fresh lease without
foreknowledge of the DHCP server's IP address. Note that
this is highly simplified.
I.A client boots and initializes its network hardware
II.The client sends out a DHCPDISCOVER message formatted as
follows:
A.The source MAC is the client's MAC
B.The destination MAC is all 1's indicating a hardware-
layer broadcast (FFFFFF-FFFFFF)
C.The message type is set to DHCPDISCOVER
III.The server hears the DHCPDISCOVER request and responds
A.The source MAC is the server's MAC
B.The destination MAC is the client's MAC
C.The message type is DHCPOFFER containing:
1.Server-provided IP address from pool of free addresses
(the server should but is not required to check for address
conflicts before offering the IP address).
2.List of DHCP configuration parameters
D.Client responds with DHCPREQUEST message and does one or
more of the following:
1.requests values for the server-offered parameters from a
single server (rejecting all offers from other servers)
2.confirm the correctness of the previously allocated IP
address (after the client had rebooted or lost connection
to the network)
3.requests extension of the lease on the specific address
already supplied.
E.The server responds with
1.a DHCPACKnowledge to confirm the server-offered options
and IP previously confirmed by the client -
- or-
2.a DHCPNOACKnowledge to reject the server-offered options.
- or -
3.a DHCPDECLINE message to indicate to the server the
address is in use.
F.The client retains the information throughout the period
of its lease.
G.The client sends a DHCPRELEASE message to release its IP
address at the DHCP server when it is leaving the network.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is total quality control? Mention the technical standards.
Why cnc machine installed in dustproof room?
Write a C++ code that print the largest two among three numbers
Explain overhauling stopsfor backpull our pumps?
What you know about iso 9001?
Mention different type of processes?
Why control valves are hunting on manual mode?
How important are statistics in industrial engineering?
Let’s say we live in a country that gets very cold, in Northern America / Europe. In winter, we monitor the ouside temperature, so that heaters can be switched on, inside the house. The idea is that, the colder it is outside, the warmer it should be inside. The heating side of things is just a heater that is either switched on, or switched off. Just from the information that has been given, please discuss this matter in depth. Provide reference to OPEN / CLOSED loop control, FEEDFORWARD / FEEDBACK control and MODULATING / ON_OFF control raised in the discussion.
Why the thermocouple is a transducer an rtd is not a transducer both taking heat as a input and give millivilt and ohms.
What is the purpose of departmental classification?
plz send me l&t auestion papers. i have been called for written and interview industrial automation 2 yrs exper. send me on mail pal_deepak06@yahoo.com
Define productivity?
What should be the material composition of transformer oil filtration machine to avoid metal contamination in filtered oil?
. Briefly describe your ideal job? 2. Why did you choose this career? 3. What goals do you have in your career? 4. How do you plan to achieve these goals? 5. Can you work well under deadlines or pressure? 6. Tell us about a time when you failed to meet a deadline. What were the repercussions? 7. Do you have reference list? 8. Why do you want to work here? 9. Why should we hire you over the others waiting to be interviewed? 10. What is your Current Monthly Salary Package in US Dollars? 11. How soon can you travel down to start your new Job if employed? 12. What job position/s are you currently holding with your current employer? 13. What three Specific Job Positions do you target from QATAR PETROLEUM UK,
