[Leonard Sighei]

We get the services from ISP, therefore, we use PA IPv6 services

[Leonard Sighei]

IPv6 multicast abolishes broadcast communication, making communication of one to many efficiently as it involves the interested parties only. Additionally, SCOPE always limits the scope of the multicast group.

[Leonard Sighei]

IPv6 is the solution of limits of IPv4, with emergence of machine-to-machine, IoT and other technologies which requires immidiate with minimal latency, IPv6 will only provides the solution of depletion of IPv4.

[Leonard Sighei]

RFC 1918 and introduction of NAT and implementation of CIDR, VLSM and well design of network has really helped IPv4 to last longer.

[Leonard Sighei]

and of cause, the 96 bits remaining of the 32 bits of network address are subnet bits that is global bits 32 which is n, and subnet bits are 64-32 (n) bits and the rest are host address bit.

[Leonard Sighei]

Yes you are correct, that is the correct IPv6 address; we can use the two ways of shortening to simplify the address; suppression and compression. In cisco it is called IPv6 address shortening; removal of the leading zeros in the suppression, and in compression is replacing the longest consecutive zero segments with a double colon and of cause this is done once in an address.

2001:db8::ff00:42:29 – Is the correct answer

Common mistakes are:

a. Omitting zeros twice in an address and replacing with double colon ::

b. Removal of trailing zeros

Example:

IPv6 address

2001:0db0:0000:0000:0ab0:0000:0000:0adc

Correctly simplified address:

2001:db0::0ab0:0:0:adc or 2001:db0:0:0:ab0::adc

Incorrect:

a. Omitting zeros twice within one address:

2001:db0::0ab0::0adc

b. Removal of trailing zeros:

2001:db::ab:0:0:adc