So what is "IPv6", and why do I need to know about it?

IPv6 or IP version 6 is the next generation Internet protocol which will eventually replace the current protocol IPv4. IPv6 has a number of improvements and simplifications when compared to IPv4. The primary difference is that IPv6 uses 128 bit addresses as compared to the 32 bit addresses used with IPv4. This means that there are more available IP addresses using IPv6 than are available with IPv4 alone. For a very clear comparison, in IPv4 there is a total of 4,294,967,296 IP addresses. With IPv6, there is a total of 18,446,744,073,709,551,616 IP addresses in a single /64 allocation.

To also help illustrate the sheer magnitude of available IP addresses using IPv6, you can get 65536 /64 allocations out of a single /48, and then 65536 /48 allocations out of a single /32. Many Service Providers are getting /32 allocations from their Regional Internet Registry (RIR) like ARIN, APNIC, RIPE, etc.

A significant difference between IPv6 and IPv4 is the address notation. IPv4 uses a period (.) between each octet, compared to IPv6 which uses a colon (:). With IPv6, if you have a series of zeroes in a row, the address need not be written out completely. You can use a double colon (::) to represent that series of zeroes, however you can only use that once. For example, if you have an address like "2001:0DB8:0000:0003:0000:01FF:0000:002E", it can be written like "2001:DB8::3:0:1FF:0:2E" or "2001:DB8:0:3:0:1FF::2E", but would never be written like "2001:DB8::3::1ff::2E". You also cannot have three colons in a row (:::).

IPv6 availability depends on your Service Provider, either at home or for work. In a dual-stack environment, IPv4 and IPv6 co-exist along the same connection and don't require any special kind of connection. If dual-stack is not available, you might find yourself using an IP tunneling product or service to bring IPv6 connectivity to you. IPv4 exhaustion, as of this writing, is estimated to happen sometime in early or mid 2011. When this happens, IPv4 won't simply disappear off the face of the Internet, but continued explosive growth requiring more unique IP address assignments will mean using more and more of the abundant IPv6 address space.

Many Operating System platforms have native IPv6 support these days. The UNIX based platforms like Linux, BSD (Free, Open, Net) & MacOSX have had IPv6 support enabled for years now. Microsoft Windows starting having native IPv6 support enabled by default with it's Vista and Windows 2008 products. Earlier Windows versions like 2000/2003/XP had to have it installed optionally, and did not have as robust features that are available in the newer versions of Windows. Even common web browsing and email software will use IPv6 if it is enabled and available, without having to check off an option or special configuration. The transition from IPv4 to IPv6 is being worked on to be as seamless as possible, and many might not even notice the subtle changes in the coming years

Resource : http://ipv6.he.net/certification/primer.php

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Posted in: Internet Blogging,News

Qur'an-burning pastor jailed after mosque protest barred

A controversial Florida pastor who had planned a demonstration outside a Michigan mosque Friday evening was briefly jailed after a court decided the protest would cause a breach of the peace and he refused to post a "peace bond" of US$1 required by the judge.

Fifty-nine-year-old Terry Jones, the pastor of a small church in Gainesville, Florida whose burning of the Qur'an sparked deadly protests in Afghanistanearlier this month, was denied a permit to stage a protest against "radical Islam" in front of the Islamic Center of America in Dearborn, Michigan, where one of the largest communities of Muslims in the US is located. Dearborn police cited concerns about violence and offered alternate sites for the protest, which Jones rejected, saying his protest would go ahead as planned.

Prosecutors, concerned about possible violence, went to court on Thursday to obtain a ruling from Dearborn District Judge Mark Somers to prevent the protest. Somers conducted a one-day trial on Friday. At the trial, Jones argued that any limitations on his planned protest violated his free speech rights protected by the First Amendment of the US Constitution. "The First Amendment is only valid if it allows us to say what other people may not like," Jones said in court. "Otherwise, we do not need the First Amendment."

The six-person jury reached the verdict that Jones was "likely to breach the peace" if he went ahead with his demonstration.

Prosecutors requested the judge require a $25,000 bond. Judge Somers ordered Jones and supporter Wayne Sapp, 42, to pay a $1 peace bond and agree to stay away from the mosque for a period of three years. "The peace bond is to prohibit free speech," said Sapp. Both initially refused to pay the peace bond and were remanded to the county jail. Prosecutors said that if they refused to pay, they might be jailed for up to three years. Both later paid the bond and were released.

The American Civil Liberties Union (ACLU) had filed a motion for the case to be dismissed on the basis that Jones could not be forced to post a bond making him pay for police protection. An ACLU spokesperson said, "It is unconstitutional to put a price on free speech in anticipation that the speech may not be welcome by others". Robert Sedler, a professor of constitutional law at Wayne State University, agreed, saying the US Supreme Court has determined that it was unconstitutional to require a bond for police protection

Source From :

http://en.wikinews.org/wiki/Qur%27an-burning_pastor_jailed_after_mosque_protest_barred

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Posted in: News