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just another stuff i wondered

Discussion in 'Networks' started by kobem, Dec 12, 2007.

  1. kobem

    kobem Megabyte Poster

    first question : look at the sentence

    "ipv6 interfaces have link-local addresses in addition to the global addresses that applications usually use."

    a- link-local address is like a private address?
    b- what is the global address here ?(public (routable))
    c- if a is a , b is b this is like NAT oh my god ?
    d- sentence i wrote above expresses that for one interface you can use more than one ip addresses ?

    second question

    a- link MTU ? (in fact i know it is the maximum sized packet that will go through a network)
    b- so what is path MTU ?

    third question :

    there is an auto configuration feature that comes with ipv6 also there are stateless
    and stateful ...

    stateful is dhcpv6 and stateless is a type of auto config ... auto config itself

    stateless auto config runs by sending a local-link multicast request to related router and
    gathering config parameters

    BUT DHCPv6 is like that(you send a request and get ip) , what is the difference?

    Certifications: CCNA
  2. Mr.Cheeks

    Mr.Cheeks 1st ever Gold Member! Gold Member

    are these questions that you need to answer? or questions that you want members here to answer for you?
    where are you getting these questions from?
  3. Phoenix
    Honorary Member

    Phoenix 53656e696f7220 4d6f64

    as far as memory serves me (it's been a while since I did much IPv6)

    Link Local addresses are locally derived from the local subnet address (net local) and the hardware address of the link (MAC)
    they are thus unique, and plugging 5 devices together on a switch would enable them to communicate without a problem

    Global address is assigned by someone with a globally routable network address, in this instance the network portion of the address is assigned by an ISP or the ilk

    the machine part of the address is still derived from hardware specific address (MAC)

    NAT will not be a major requirement in an IPv6 network due to the number of addresses, NAT may occur due to security requirements

    an interface will always have a link-local address but can also have a link-global address

    Stateful activley requests an address from a dhcpv6 server, such as one at an ISP or corporate lan, for a link-global address
    stateless is the link-local type, its automatically derived by its machine address and the subnet address of the segment it is connected to

    this is stateless, there is no active participation required by another network device

    like i say, double check most of this, its been ages since I wrote anything on ipv6 and it could be a little flakey
    Certifications: MCSE, MCITP, VCP
    WIP: > 0
  4. kobem

    kobem Megabyte Poster

    from my mind , these make you ill i know but i can't stop my mind to generate these kind of questions ...:(
    Certifications: CCNA
  5. kobem

    kobem Megabyte Poster


    hey phoenix man according to your words link local is the same with private address and global
    is with public ?

    also an interface will have more than one ip address then global is similar to public
    so that what is the difference on the global from ipv4?
    Certifications: CCNA
  6. Mr.Cheeks

    Mr.Cheeks 1st ever Gold Member! Gold Member


    too bad, you cant generate the answers :(
  7. drum_dude

    drum_dude Gigabyte Poster


    Certifications: MCSA , N+, A+ ,ITIL V2, MCTS
    WIP: MCITP 2008 Ent Admin, Server Admin, Exchange 2010, Lync 2010, CCNA & VCP5
  8. tripwire45
    Honorary Member

    tripwire45 Zettabyte Poster

    What materials are you using to study this subject? I know you've said in the past that it's very difficult for you to purchase hardcopy material, but are you using information sources on the web? There are just tons. Not to be redundant, but the following link is the search results for "ipv6" on Google:


    I would imagine that there is more than enough material to help you answer many of your questions.
    Certifications: A+ and Network+

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