Queries regarding ipv6

[Ashish Yadav]

Hi All,   I have the following queries about ipv6. Can you please help me resolve them?   Q1 How do you make sure that the packets are fragmented? What if a Non-fragmented packet and the last part of a fragmented packet reach together to a router, how will it identify the fragmented packet?   Q2 What is the algorithm for scheduling at the router? Any standard?   Q3 Flow label details. What are the possible uses for the same?   Q4 What are the examples of Hop by Hop and Destination option headers?   Q5 What is the order of the options headers?   Q6 Is there any restriction on the number of option headers of a particular type? e.g. can we have more than one routing headers?   Q7 Is loose source routing possible in ipv6?   Q8 If Fragmentation is only possible at source, does that mean we can only send minimum size packets from the source?   Q9 Is “No next header” mandatory? Can it not decide on the basis of the length of the IP header?   Q10 How will a device that changes the network receive the old traffic? How will the routing tables be updated for the same? [How will DNS work in case of ipv6?]   Q11 What is the routing hierarchy in ipv6?   Q12 On each interface, who will take care of the time duration left or the status of the ip [preferred/Deprecated]?   Q13 what is the difference between the ipv4 mapped and ipv4 compatible address?   With Regards, Ashish ********************** Legal Disclaimer **************************** "This email may contain confidential and privileged material for the sole use of the intended recipient. Any unauthorized review, use or distribution by others is strictly prohibited. If you have received the message in error, please advise the sender by reply email and delete the message. Thank you." **********************************************************************