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ENCAPSULATION
Network interface layer adds IP datagram as data area in hardware frame. Hardware ignores IP datagram message format. Standards for encapsulation defines details.Standard describe data type for IP datagram, as well as others. Receiving protocol stack compiles data area based on frame type. The encapsulation procedure is given in the diagram below.
ENCAPSULATION ACROSS MULTIPLE HOPS:
Each router in the path from the source to the receiver unencapsulates incoming datagram from frame message, processes datagram and calculates next hop and encapsulates datagram in outgoing message frame. Datagram can be encapsulated in different hardware format at every hop. Datagram itself is unmodified as given in the figure below.
What is the use of it
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FRAGMENT IDENTIFICATION: IDENT field in every fragment matches IDENT field in real datagram. Fragments from different datagrams may arrive out of order and still be saved out.
Q. Explain the random key distribution? The triple key management mechanisms ensure a better and complete security solution using the random key distribution mechanism. In this
Enterprise Information Security Policy (EISP) EISP also known as security policy directly supports the mission of the organization and sets the strategic direction, scope, and t
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i have an idea of clustering in wsns . where each and every sensor node use the reputation scheme and while clustering provide help against the selfishness atatck of the sensor nod
Detect each visit to www.google.com that is made by the machine. o Send an alert when an activity relating to network chat is detected. o Send an alert when an attempt is made for
IP DATAGRAM Various options can be included to IP header, e.g., source route, record route and timestamp. Header with no function has H. LEN field value 5; data starts immedia
(a) Consider the subsequent authentication options: A. Using password. B. Using pin and fingerprint Which option A or B provides stronger security and why? (b) Give
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