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A Few Steps to Avoid Click Ipv6 Address by Hand

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A Few Steps to Avoid Click Ipv6 Address by Hand

Believe that  all friends are tortured by the configuration of ipv6 address, such as 2022: acef: 3 c4d: 5 a8b: 6611-7788: a1db: 03 ff, which will leave u a headache. But once you get to know ipv6, it can be even easier to type than ipv4. So follow me to learn the simplified configuration methods for ipv6.

First of all, in order to increase the address space, ipv6 adopts 128bit address length. Because it is obviously inappropriate to use the original dotted decimal system,  we use colon and hexadecimal to stipulate regulations. But even this way is still not easy to configure. Therefore, two basic simplification methods are proposed, which are leading zero ellipsis and double colon representation. For example, for 2001-0000, 0001:0000-0000:0000-0000:00 ff, we can use leading zeros to omit it reduced to 2001:1-0: : 0:0:0:0: ff. And then, we use the double colon notation to omit the longest string of zeros in the address to get 2001:0:1::ff. So you can know it’s short and easy to configure.

Some students may have questioned that in the real environment such a simple address does not exist and we have to plan for it, but planning is more boring than configuration!

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In fact, there are corresponding solutions. First, after ipv6 is enabled, it will generate link-local address according to EUI-64. Many students know this address but do not know its function. It is also a type of unicast address. When configuring ipv4 DHCP, there is a string of mysterious addresses before obtaining the IP address. In addition, ospfv3 is not based on network segments, but only based on links. That is to say, if ospfv3 is enabled on interfaces, even link-local addresses automatically generated on MA networks can be connected. Aka the legendary No! Use! Match!

So sometimes we need a global unicast address. Is there a way to simplify the work? The answer is yes! For Huawei devices, you only need to run the ipv6 address auto link-local command to automatically generate an ipv6 address based on link-local. You can also manually specify a prefix, and then complete the following addresses based on EUI-64. These methods can allow us to greatly improve the efficiency of ipv6 configuration, hand-sour!

Finally, there is no need to manually configure the gateway for ipv6 as there is for ipv4. Icmpv6 will automatically solve this problem for you.

A Few Steps to Avoid Click Ipv6 Address by Hand

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