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Cleankod
Asked: 2012-01-26 05:22:43 +0800 CST

Advantages of IPv4 over IPv6

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In theory, how IPv4 is better than IPv6? I need only advantages of IPv4 for study purposes.

In another words - what are the pros of IPv4?

ipv6 ipv4

4 Answers

  1. Best Answer
    1. Simpler
      1. IPs a normal human might be able to remember.
      2. Less programming, less memory, etc.
    2. Familiarity
      1. Thousands (millions?) of Network and System Administrators already know it.
      2. Existing infrastructure supports it at almost every level already.
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  2. Legacy support is the only one I can think of. It's been implemented and re-implemented to the point that just about everything out there would support it properly so lowest-common-denominator cheap equipment shouldn't, in theory, screw it up.

    IPv6 is compatible with IPv4 but it's not widespread enough to the masses to show bugs in implementations yet, in my opinion. I'm sure someone's Internet enabled doodad will bug out because of an issue with interacting on IPv6.

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    • It's easier to read and remember.
    • Better supported
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    1. Simple to remember and to operate.
    2. Better support.
    3. Better platform, specially some high-profile firewall, that while most support ipv6 but don't give a crap about the administration but a bare minimum for ipv6.
    4. Widely supported (it is way important)
    5. Short (how's short better?. Simple, because we are transmiting 4 bytes instead of 8 bytes, and in some cases it count as a big overload of information). In fact, the ipv6 header is double than ipv4 header .
    6. IPV6 could be used for identify you and it is a bad thing. Most important companies, websites and some home users uses fixed IPV4 address but the rest uses dynamic address that are hard to identify and associate with a specific user, and other users relies on fake-ip (192.168.. 10.128..) thar protect it from Internet.

    And the main point is that the switch from IPV4 to IPV6 lacks of a plan-b and right now, the migration is not working so well.

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