Search results
Results from the WOW.Com Content Network
An optional feature of IPv6, the jumbo payload option in a Hop-By-Hop Options extension header, [8] allows the exchange of packets with payloads of up to one octet less than 4 GB (2 32 − 1 = 4 294 967 295 octets), by making use of a 32-bit length field. Packets with such payloads are called jumbograms.
This is a list of the IP protocol numbers found in the field Protocol of the IPv4 header and the Next Header field of the IPv6 header. It is an identifier for the encapsulated protocol and determines the layout of the data that immediately follows the header. Both fields are eight bits wide.
When configuring network devices the hop may refer to next hop. [5] When a hop forwards network traffic the next hop is what the local hop considers to be the next element towards the final destination. A routing table usually consists of a list of possible destination networks or IP addresses for which the next hop is known.
Extension headers carry options that are used for special treatment of a packet in the network, e.g., for routing, fragmentation, and for security using the IPsec framework. Without special options, a payload must be less than 64 kB. With a Jumbo Payload option (in a Hop-By-Hop Options extension header), the payload must be less than 4 GB.
A new Home Address option for the Destination Options header; A new Type 2 Routing header; New Internet Control Message Protocol for IPv6 (ICMPv6) messages to discover the set of home agents and to obtain the prefix of the home link; Changes to router discovery messages and options and additional Neighbor Discovery options
Set to 1 if the options need to be copied into all fragments of a fragmented packet. Option Class: 2: A general options category. 0 is for control options, and 2 is for debugging and measurement. 1 and 3 are reserved. Option Number: 5: Specifies an option. Option Length: 8: Indicates the size of the entire option (including this field).
In the IPv4 header, TTL is the 9th octet of 20. In the IPv6 header, it is the 8th octet of 40. The maximum TTL value is 255, the maximum value of a single octet. A recommended initial value is 64. [2] [3] The time-to-live value can be thought of as an upper bound on the time that an IP datagram can exist in an Internet system.
Smart phone ad hoc networks use the existing hardware (primarily Bluetooth and Wi-Fi) in commercially available smartphones to create peer-to-peer networks without relying on cellular carrier networks, wireless access points, or traditional network infrastructure. Wi-Fi SPANs use the mechanism behind Wi-Fi ad-hoc mode, which allows phones to ...