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Simplified header format. IPv6 has a fixed length header, which does not include most of the options an IPv4 header can include. Even though the IPv6 header contains two 128 bit addresses (source and destination IP address) the whole header has a fixed length of 40 bytes only. This allows for faster processing.
Options are dealt with in extension headers, which are only inserted after the IPv6 header if needed. So for instance if a packet needs to be fragmented, the fragmentation header is inserted after the IPv6 header. The basic set of extension headers is defined in RFC 2460.
What else can I help you with?
What is the length in bits of a logical IP address IPv4 and IPv6?
32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).
The Traffic Class field in an IPv6 datagram serves the same funcition as which of the following fields in an IPv4 datagram?
DiffServ
Which IPv4 to IPv6 transition methods allows an IPv4 only host to communicate with a IPv6 only host?
I guess NAT64
What are the loopback addresses in IPv4 and IPv6?
In IPv4, the loopback address is 127.0.0.1. In IPv6 it is ::1.
Conversion of IPV4-IPV6?
There is no direct conversion.
What is the length in bits of a logical IP address IPv4 and IPv6?
32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).
Why does IPv6 use separate extension headers instead of fields in a single fixed header?
IPv6 includes an improved option mechanism over IPv4. IPv6 options are placed in separate extension headers that are located between the IPv6 header and the transport-layer header in a packet. Most IPv6 extension headers are not examined or processed by any router along a packet's delivery path until it arrives at its final destination. This facilitates a major improvement in router performance for packets containing options
Should ipv4 be disabled when using ipv6?
There is no need to disable ipv4 to use ipv6.
Differential between ipv4 and ipv6?
1. Describe the main features that differentiate IPv6 from IPv4
How can dns distinguish between ipv4 and ipv6 host in determining which resource record to return?
It reads the protocol/bit stream/header
The Traffic Class field in an IPv6 datagram serves the same funcition as which of the following fields in an IPv4 datagram?
DiffServ
Which IPv4 to IPv6 transition methods allows an IPv4 only host to communicate with a IPv6 only host?
I guess NAT64
What are the loopback addresses in IPv4 and IPv6?
In IPv4, the loopback address is 127.0.0.1. In IPv6 it is ::1.
Which characteristic describes an IPv6 enhancement over IPv4?
IPv6 has a larger address space compared to IPv4, allowing for more unique addresses. This solves the issue of address exhaustion seen in IPv4.
Conversion of IPV4-IPV6?
There is no direct conversion.
Discuss the IPv6 integration issue and comparing the security aspects of IPv4 and IPv6?
uLol(^^,)!
The traffic class field inan ipv6 datagram serves the same function as what fields in an ipv4 datagram?
Answer B DiffServ Page 831
