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Cisco Ccnp / Bsci Exam Tutorial: Internet Protocol Address Version 6 Zero Compression

BSCI test success is all part of becoming a, and part of the success has become studying the basic principles of IP Version 6, or IPv6. Among the most difficult elements of learning IPv6 principles could be the radically different addressing scheme that IPv6 uses when compared with IPv4. Just look at these sample addresses:

Normal IPv4 address: 129.14.12.200

Regular IPv6 address: 1029:9183:81AE:0000:0000:0AC1:2143:019B

IPv6 is not particularly just tacking two more octets onto an IPv4 target, as you can view!

I've perhaps not met too many networkers who love typing, particularly numbers. You'll be pleased to know there are several rules which will limit these handles somewhat, and it is a very good idea to be proficient with one of these rules for the examination.

You remember from your source reports that there is no difference between an letter and lower-case letter in hexadecimal. That's one of three basic principles you need to learn when working with IPv6 addressing. The other facets deal with all the zeroes you'll come across in IPv6 addresses! One of these brilliant policies may be the principle of zero compression.

The concept of zero retention states that if an address contains successive fields of zeroes, they could be expressed with two colons. It doesn't matter if you've two fields or ten, colons can be simply typed two by you and which will represent all of them. The key here's that one may only do this once in a IPv6 address. That is known as zero compression. Listed here is an example:

Original format: 1234:1234:0000:0000:0000:0000:3456:3434

Using zero compression: 1234:1234::3456:3434

Again, you must understand that you can only do this once in an IPv6 address expression.

Imagine if you can find zeroes in this rule that was not quite fit by the address? The following part of our IPv6 training will handle leading zero pressure, yet another tool you can use to lessen these long, long addresses!