Ipv6 Bookmarks | Migrando do ipv4 para o ipv6

Links

• ipv6 RFC
• ipv6 address RFC
• Format for Literal IPv6 Addresses in URL's RFC

Anotações

São acessados no brower usado [${address}] ex: http://[fe80::297a:3cfd:fee5:3326]/

Exemplo de IPV6, são 8 casas de 16bits separados por :

ABCD:EF01:2345:6789:ABCD:EF01:2345:6789

2001:DB8:0:0:8:800:200C:417A

Exemplos de endereços comuns, zeros à esquerda podem ser substituidos por ::

For example, the following addresses

   2001:DB8:0:0:8:800:200C:417A   a unicast address
   FF01:0:0:0:0:0:0:101           a multicast address
   0:0:0:0:0:0:0:1                the loopback address
   0:0:0:0:0:0:0:0                the unspecified address

may be represented as

   2001:DB8::8:800:200C:417A      a unicast address
   FF01::101                      a multicast address
   ::1                            the loopback address
   ::                             the unspecified address

É possível resolver descobrir o endereço IPV4 a partir do IPV6, pegando os ultimos 4 bytes que são as ultimas duas casas ou tudo que for separado por ponto quando a anotação é feita como abaixo ref 1

0:0:0:0:0:0:13.1.68.3

0:0:0:0:0:FFFF:129.144.52.38

or in compressed form:

::13.1.68.3

::FFFF:129.144.52.38

Exemplos acessando de construção de URLs

2. Literal IPv6 Address Format in URL's Syntax

To use a literal IPv6 address in a URL, the literal address should be
enclosed in "[" and "]" characters.  For example the following
literal IPv6 addresses:

  FEDC:BA98:7654:3210:FEDC:BA98:7654:3210
  1080:0:0:0:8:800:200C:4171
  3ffe:2a00:100:7031::1
  1080::8:800:200C:417A
  ::192.9.5.5
  ::FFFF:129.144.52.38
  2010:836B:4179::836B:4179

would be represented as in the following example URLs:

  http://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]:80/index.html
  http://[1080:0:0:0:8:800:200C:417A]/index.html
  http://[3ffe:2a00:100:7031::1]
  http://[1080::8:800:200C:417A]/foo
  http://[::192.9.5.5]/ipng
  http://[::FFFF:129.144.52.38]:80/index.html
  http://[2010:836B:4179::836B:4179]

A link local address has a prefix of FE80, is not routable, and can be used for communication only on the local network, the loopback is the most common example:

fe80:0:0:0:0:0:0:1

Ranges de IP

• https://en.wikipedia.org/wiki/IPv6_address
• https://unix.stackexchange.com/a/470377/117844
• https://docs.oracle.com/cd/E19253-01/816-4554/ipv6-overview-170/index.html#:~:text=The%20prefix%202001%3Adb8%3A%3A%2F,db8%3A3c4d%3A15%3A%3A%2F64

Principais

• 2001:db8::/32 : usado para documentações, exemplos
• fc00::/64 : LAN (Networks privadas)
• fe80:: : localhost, loopback , nao serve para definir para outras interfaces como docker

Subnets mask

• ref1

fc00:5c6f:db50::/48

O endereço acima diz que os primeiros 6 bytes (48 bits) são o prefixo de todos os IPs dessa subnet, portanto 80 bits ou 10 bytes restantes poderão ser usados para definir o IP que quiser. Quanto maior o prefixo menor a chance de colisão porém menos IPs poderão ser usados naquela subnet.

Use a calculadora de subnet para entender como ela ficará

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