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Both optical cat and router support IPv6, but they can't use it?

2021-05-04 12:38:13 dearplain

 

Over the years, light cats in many places can get ipv6 Address , And the new routes basically support ipv6, But there are still a lot of people http://test-ipv6.com I can't see my own ipv6 Address , I can't make it ipv6 Website .

I also have this problem , There is a light cat from an unknown mobile manufacturer at home + glory wifi6, Great speed , Just a little regret : Can't use ipv6. I work and ipv6 There's something about it , I studied for a while ipv6, Decided to solve the problem .

 

Specific performance :

  • 1. Naked cat 、 The router has ipv6 Address .
  • 2. The computer has an Internet ipv6 Address .
  • 3. stay test-ipv6 Can't detect... On ipv6.
  • 4. ping ipv6 Address display timeout .

 

Computer access ipv6 The way to the address , There are two kinds of , So maybe there's something wrong with these two ways .

  • RA RS The process , In short , It's the computer that sends out RS Inquire about , The router replies RA, And get ipv6 Address process .

          

  • DHCPv6, The router selects an address from the address range to the computer .

      

 

First attempt , Failure :

Look, the lightcat and the router are on dhcp, Doubt is conflict , Close one first .

  

 

  Okay , After restarting the computer , I got it. ipv6 Address , Can also ping Through the server , But the next day at home ipv6 It doesn't work again ???

 

A second try , success :

It seems that the problem is not so simple , I carefully observed the light cat and the router ipv6 Address , I found that their addresses didn't match , In theory, , The lower router should inherit the address prefix of optical cat , But I see glory wifi6 The address prefix is another .

So it's not the light cat RA perhaps dhcpv6 There is a problem with the configuration ?

 

I do the following :

1. Deselect on light cat M O position , Reduce waiting time . deselect M O position , Can let the client not to request dhcp.

 

2. The light is off on the cat ipv6 dhcp service .

 

3. Glory router ipv6 dhcp Choose auto configuration , close ipv6, And turn it on again ipv6, here , The computer got ipv6 Address ( The phone needs to go into flight mode and turn it on ), can ping Internet access ipv6 Address , Perfect solution !

 

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