Fabio Marques

Date: November 2016

Cisco Confidential

Service Provider Infrastructure Group

Access Platforms UpdateFórum Regional lX.br Como ir do IPv4 para o IPv6, passando pelo CGNAT e NAT64.

Março de 2019

Adalberto Lins

adalberto@cisco.com

Perguntas

1. Esse assunto é relevante para vocês?

2. Tem IPv4 válido sobrando para atender? SEM CGNAT

3. Quem esta fazendo CGNAT?

4. Você se sente a vontade para experimentar e implementar IPv6?

5. Quem já esta fazendo peering e recebendo IPV6 na Borda BGP?

6. Quem já tem IPv6 implementado em clientes ou em piloto?

Política implemetada em 2011 com 3 fases:

• FASE 1 “Estoque” /9 – Mai 2014

• FASE 2 “Estoque” /10 – jun 2014 (esgotamento)

• FASE 3 (atual) – Jan 2017

• Alocação inicial somente (/24 a /22)

Previsão atual de esgotamento: Jan/2020

Ricardo Patara (NIC.br)

Panorama do esgotamento do IPv4 e implantação do IPv6 na Internet

10anos.ipv6.br - Out/2018

Esgotamento no LACNIC

https://www.aelius.com/njh/google-ipv6/

http://6lab.cisco.com/stats/

http://6lab.cisco.com/stats/

http://6lab.cisco.com/stats/

https://10anos.ipv6.br/

“O dado que é público é que a rede da VIVO como um todo somando todos

os produtos é em torno de quase 50% de tráfego IPv6. Na móvel ele é ainda

mais concetrado” ... “esta em torno de 70%”.

“O Nat64 passa a fazer sentido quando ele passa da metade, pois passamos

a economizar efetivamente”

Fábio Scartoni (Vivo)

Painel: Desafios da implantação do IPv6 e desligamento do IPv4

Fórum Brasileiro de IPv6 – 09.10.2018

• On-line gaming

• Video streaming (Netflix, Hulu, …)

• IP cameras

• Security

• BitTorrent/Limewire (seeding – uploading)

• Port forwarding (Surveillance, Home-Automation)

• VoIP

• UPnP-IGD (Universal Plug & Play - Internet Gateway Device protocol)

• NAT-PMP (NAT Port Mapping Protocol)

• Other NAT Traversal mechs

• AJAX (Asyncronous Javascript And XML)

• FTP (big files)

• Tunnels, VPN, IPsec, ... https://conference.apnic.net/46/

Tutorial 6-13 de Setembro: IPv6-only transition with demo

Problemas conhecidos do CGNAT

Esforços já adiantados para concluir as últimas pendencias práticas

• Trusted Systems, IoT & IPv6

• IPv6, NTP, Routing Security & IoT

• IPv6, TLS, DNS Privacy & Other Crypto

https://www.internetsociety.org/issues/ipv6/

Internet Society IETF Meeting Nov/2018

Key Takeaway – No one size fits allMultiple technology adoption scenarios

▪ Preserve IPv4, Prepare and Prosper with IPv6

▪ Remember: IPv6 Makes IPv4 network with NAT44 works better

time

IPv6 only endpoints

technically viable

New end-systems deployment (handset/RG)

Large Scale NAT

(LSN) introduction

IPv4 address pool

exhausted

•6rd introduction

IPv6 Internet

(IPv6 only transport

viable from a market

perspective)

Dual-Stack

deployment

•NAT64

NAT46

IPv6 enabled

endpoints

IPv4 enabled

endpoints

Key Takeaway – No one size fits allMultiple technology adoption scenarios

time

IPv6 only endpoints

technically viable

New end-systems deployment (handset/RG)

Large Scale NAT

(LSN) introduction

IPv4 address pool

exhausted

•6rd introduction

IPv6 Internet

(IPv6 only transport

viable from a market

perspective)

Dual-Stack

deployment

•NAT64

NAT46

IPv6 enabled

endpoints

IPv4 enabled

endpoints

▪ Preserve seu IPv4, Prepare e Prospere com IPv6

▪ LEMBRE-SE: IPv6 torna a rede IPv4 com NAT44 muito melhor

Topologia de Referencia

FTTH, PON

GPON, STP,

REP, 802.1Q

Etc,

BGP, BNG (PPPoE/IPoE/BRAS)

CGNAT,

NAT64

OSPF, MPLS,

VPLS, L3VPN

Segment Routing

BGP-eVPN

DWDM

CPE

WiFi

SD WAN

Security

IPv6

BGP

BGP Full

IPv4/IPv6

DDoS

BNG

BGP

IPv4 e IPv6 sobre PPPoE

IPv4 IPv4IPv4

Qual parte do backbone precisa fornecer trânsito IPv6 ?

Trânsito IPv6

e IPv6 e IPv6

• Peering IPv6

• Endereçamento IPv6

• Roteamento IPv6

• Serviços IPv6

e IPv6

e IPv6

e IPv6

CGNAT

0

LINK

1

LINK

2

LINK

3

LINKCLASS 1LASER 1

ASR 1001STAT

PWR

CRIT

MAJ

MIN

USB

BF

LINK

MGMT CON AUX

0

C/A A/L0 IDC-4XT3

1

C/A A/L1

2

C/A A/L2

3

C/A A/L3

CISCO NEXUS N9K-C93180YC-EX

53 5451 5249 501 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

BCN

STS

ENV

ASR920

0 2 4 6 8 101 3 5 7 9 11AUXCON

PS-1

PS-0PWR STAT

26 27

ALARM

USB MEM

CONSOLE

MGMT

1G PORTS12 14 16 18 20 2213 15 17 19 21 23

1G PORTS 24 25

ASR920

0 2 4 6 8 101 3 5 7 9 11AUXCON

PS-1

PS-0PWR STAT

26 27

ALARM

USB MEM

CONSOLE

MGMT

1G PORTS12 14 16 18 20 2213 15 17 19 21 23

1G PORTS 24 25

INTERNET

Cisco 2900 Series

SYS ACT POE RPS PSU

I

AC OK100-120/200-240V~

4/2A, 50-60 Hz

Cisco 1800 Series

SYS

PWR

SYS

OK

SYS ACT POE

Cisco 1900 Series

Cisco NCS-540Core

Cisco ASR 1001-XBORDA

ServiçosBorda BGP

Autenticação BNGConcentrador PPPoE

CGNAT / NAT64

ServidorSoftware de Gestão

Autenticação

AnelOSPF / MPLS

L2VPN

Cisco 1900CPE – Cliente

PPPoE

Cisco 1800CPE – Cliente

PPPoE

Cisco 2900BGP

179.160.44.52 /28

192.168.10.9 /24

192.168.1.0 /24 192.168.1.0 /24

100.64.20.3 /24100.64.20.2 /24

CGNAT179.160.44.52 =➔ 100.64.20.0 / 24

172.16.1.0 /24

172.16.2.0 /24

172.16.4.0 /24172.16.3.0 /24

172.16.5.0 /24PE

PE

PP

PPP

P

PE

2804:414:1004::/56

2804:414:1004:1::/64

2804:414:1004:1::/642804:414:1004:1::/64

ANELCisco ASR 920Cisco IE 3400

Bridge Domain

TOPOLOGIA FISICA DO LAB

Cisco ME 3400 Series

SYSTEM

16X

13X

14X

23X

24X

16X

1X

2X

11X

12X

1

2

RATING

100-240V~

1A-0.5A, 50-60Hz

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

CONSOLE

Cisco ME 3400 Series

SYSTEM

16X

13X

14X

23X

24X

16X

1X

2X

11X

12X

1

2

RATING

100-240V~

1A-0.5A, 50-60Hz

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

CONSOLE

ASR-9001 FAN

STATUSMGT LAN 1

LINK ACT

LINK ACT

MGT LAN 0

BITS J.211

SYNC 0

SYNC 1BITS J.211 CONSOLE

AUX

BAY 1

BAY 0

TOD

LINK ACT

IEEE 1588

GPS INTERFACE

10MHz 1PPS CRIT

MAJ

MIN

EUSB

ACO

SYNC

RSPFAIL

LCFAIL

CLUSTER 0

CLUSTER 1

SFP+ 1

SFP+ 3

SFP+ 0

SFP+ 2

Cisco ASR-9001

PSU1PSU0

AT

TE

NT

ION

ON

-OF

F F

OR

EN

TIR

E S

HE

LF

Cisco ASR 9001-SBORDA

NAT6464:FF9B::/96 =➔ IP PUBLICO

Agregação

Acesso

Borda

TOPOLOGIA LOGICA DO LAB

Roteador BGP - Recebe o IP = 179.160.44.52

Cisco ISR 2900

BORDA - ASR-1001-X

BGP – PPPoE – BNG

CGNAT / NAT64

IPv4 e IPV6

Distribuição

Router NCS – 540

Topo do ANEL

Servidor

Autenticação

Distribuição

Anel MPLS / OSPF / L2VPN

Cisco ASR-920

Cisco IE 3400

CPE cliente PPPoE

Cisco ASR 1800

Cisco ASR 1900

= 179.160.44.52 / 28

2804:414:1004::/56

IP = CGNAT = 100.64.20.0 /24

192.168.10.9 /24

MPLS/OSPF

L2VPNL2VPN

Partindo de um Ambiente IPv4 Only

ASR – 1001-X• BGPv4

• PPPoE IPv4

• BNG – RADIUS

• CGNAT

Partindo de um Ambiente IPv4 Only

ASR – 1001-X• BGPv4 BGPv6

• PPPoE IPv6

• BNG – RADIUS

• CGNAT

Partindo de um Ambiente IPv4 Only

ASR – 1001-X• BGPv4 BGPv6

• PPPoE IPv6

• BNG – RADIUS

• CGNAT NAT64

➔ Tutorial NIC.br Como ir do IPv4 para o IPv6, passando pelo CGNAT e NAT64.

https://tutoriais.semanainfrabr.nic.br/2018/

➔ Canal ISP.Express

https://isp.express/

➔ Cursos e Eventos NIC.brhttp://ipv6.br/

➔ Estatísticas IPv6 - CISCO6lab.cisco.com/stats/

➔ IPv6 Country Rankhttps://www.aelius.com/njh/google-ipv6/

Mais informações

EoS/EoL Product Announcement Date Migration Platform

ME 3600X October 2016 ASR 920

ME 3800X October 2016 ASR 900 RSP3

ASR 901S October 2016 TBD

Source:

Upcoming End of Sale Product Plan

OBRIGADO !!!

Adalberto LinsAdalberto@cisco.com

Slides de Backup

ASR1001-XCPU

Memory

DDR3

USBConsole and Aux

MgmtENET

Bootdisk

CPU

(2.0 GHz Quad-Core)

nvram

ASR 1001-X Block Diagram

Crypto

SA table DRAM

Temp Sensor

Power Ctlr

EEPROM

OversubDDR3

Rsrc/PktDDR3

TCAM4(10 Mbit)

Processor Pool

PPE0PPE0PPE0PPE1

PPE0PPE0PPE0PPE6

PPE0PPE0PPE0PPE2

PPE0PPE0PPE0PPE5

PPE0PPE0PPE0PPE3

… PPE0PPE0PPE0PPE31

PPE0PPE0PPE0PPE4 QFP

Buffer, queue, schedule (BQS)Buffer, queue, schedule (BQS)

Dispatcher/PktBuffer

NIM

Boot Flash (OBFL, …)

10 GE

10 GE

GE GE GE GE

Stratum-3ENetwork

clock circuit

SPA

GE GE

PCIe

SPA ControlSPA Bus

Other

1G

Solid State Drive

200G or 400G

Optionally in NIM

Slot

Integrated

Control Plane

- Quad Core CPU

Integrated

SIP & Enet I/O

Subsystem

2nd Generation QFP: 20

Gbps Forwarding &

Feature processing

Encryption

Coprocessor

8G Crypto

Suite-B

10GE

Resource /

Packet Buffer

Memory (4G)

ASR 1001-X Block Diagram

SSD

200G/400G in NIM

PCI

Other

GE, 1Gbps

I2C

SPA Control

SPA Bus

CPU

2.0 GHz dual-coreI2C Chassis

Management Bus

Interconnect

CPU Memory DDR3

(8GB) - Default

Management

Ethernet

USBConsole

& Aux

NVRAM

Card Infrastructure

Boot Flash

(OBFL,…)

QFP complexTCAM

(10Mbit)

Resource

DRAM

(4GB)Packet

Buffer

DRAM

(512MB)

Dispatcher Packet Buffer

BQSPPEs

PPE1 PPE2 PPE3

PPE4 PPE31

Crypto

(Nitrox-II

CN6645

10 Cores)

HHSPA

TenGE0

TenGE1

NIM

GE4

GE5

GE2

GE3

GE0

GE1

MACSec Quad

1GE PHYMACSec Dual

1GE PHY

MACSec Dual

10GE PHY

Lab 1: Partindo de um AmbienteIPv4 Only

ASR-9001 FAN

STATUSMGT LAN 1

LINK ACT

LINK ACT

MGT LAN 0

BITS J.211

SYNC 0

SYNC 1BITS J.211 CONSOLE

AUX

BAY 1

BAY 0

TOD

LINK ACT

IEEE 1588

GPS INTERFACE

10MHz 1PPS CRIT

MAJ

MIN

EUSB

ACO

SYNC

RSPFAIL

LCFAIL

CLUSTER 0

CLUSTER 1

SFP+ 1

SFP+ 3

SFP+ 0

SFP+ 2

Cisco ASR-9001

PSU1PSU0

AT

TE

NT

ION

ON

-OF

F F

OR

EN

TIR

E S

HE

LF

ASR- 90012 RU 24 ports on the faceplate : 4 X 10G20X1G, 4X 10G,12X 10G

2X100G(QSFP28)PAYG mode for 120G,4 FULL TABLE BGPBNG 32 MIL SESSÕES PPPoEIPoEMac-secMPLS FULLSATELITE c/ ASR 920FIREWALL

BGPBNG

0

LINK

1

LINK

2

LINK

3

LINKCLASS 1LASER 1

ASR 1001STAT

PWR

CRIT

MAJ

MIN

USB

BF

LINK

MGMT CON AUX

0

C/A A/L0 IDC-4XT3

1

C/A A/L1

2

C/A A/L2

3

C/A A/L3

ASR920

MGMTAUX CONCONSOLE

1

0

PWR STAT

ZTP4 5

10G PORTS

ALARMUSB CON USB MEM

TOD BITS 2 30 11G PORTS+ GND -

PS-0 24-60V 6A

+ GND -

PS-1 24-60V 6A ASR- 9201 RU 24 ports on the faceplate : 24X1G, 4X 10G, FULL MPLS, VPLS,L3VPNBNG-eVPNMac-secSATELITE

AGREGAÇÃO ACESSO

ASR- 1001-X1 RU 20G6 x PORT GIGA + 2 x PORT 10GIGA+ 4K PPPoE + CGNAT 2 MILHOES DE SESSÕES + BGP +FIREWALL1.000.000 IPv4 or 1.000.000 IPv6 routes Up- grade até 8K PPPoEFIREWALL

BGPBNGCGNAT

NCS 5401 RU

24X1G/10G , 8X 25G,2X 100G

FULL MPLS, VPLS,L3VPNBNG-eVPN

Mac-secSATELITE

AGREGAÇÃO ACESSO

SYS ACT POE

Cisco 1900 Series

Cisco 2900 Series

SYS ACT POE RPS PSU

I

AC OK100-120/200-240V~

4/2A, 50-60 Hz

Cisco 1800 Series

SYS

PWR

SYS

OK

ISR 2911ISR 1905 ISR 1800

Cisco ME 3400 Series

SYSTEM

16X

13X

14X

23X

24X

16X

1X

2X

11X

12X

1

2

RATING

100-240V~

1A-0.5A, 50-60Hz

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

CONSOLE

ME 3400

EQUIPAMENTOS DO LAB

TOPOLOGIA LOGICA DO LAB

Roteador BGP - Recebe o IP = 179.160.44.52

Cisco ISR 2900

BORDA - ASR-1001-X

BGP – PPPoE – BNG

CGNAT / NAT64

IPv4 e IPV6

Distribuição

Router NCS – 540

Topo do ANEL

Servidor

Autenticação

Distribuição

Anel MPLS / OSPF / L2VPN

Cisco ASR-920

Cisco IE 3400

CPE cliente PPPoE

Cisco ASR 1800

Cisco ASR 1900

= 179.160.44.52 / 28

2804:414:1004::/56

IP = CGNAT = 100.64.20.0 /24

192.168.10.9 /24

MPLS/OSPF

L2VPNL2VPN

0

LINK

1

LINK

2

LINK

3

LINKCLASS 1LASER 1

ASR 1001STAT

PWR

CRIT

MAJ

MIN

USB

BF

LINK

MGMT CON AUX

0

C/A A/L0 IDC-4XT3

1

C/A A/L1

2

C/A A/L2

3

C/A A/L3

CISCO NEXUS N9K-C93180YC-EX

53 5451 5249 501 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

BCN

STS

ENV

ASR920

0 2 4 6 8 101 3 5 7 9 11AUXCON

PS-1

PS-0PWR STAT

26 27

ALARM

USB MEM

CONSOLE

MGMT

1G PORTS12 14 16 18 20 2213 15 17 19 21 23

1G PORTS 24 25

ASR920

0 2 4 6 8 101 3 5 7 9 11AUXCON

PS-1

PS-0PWR STAT

26 27

ALARM

USB MEM

CONSOLE

MGMT

1G PORTS12 14 16 18 20 2213 15 17 19 21 23

1G PORTS 24 25

INTERNET

Cisco 2900 Series

SYS ACT POE RPS PSU

I

AC OK100-120/200-240V~

4/2A, 50-60 Hz

Cisco 1800 Series

SYS

PWR

SYS

OK

SYS ACT POE

Cisco 1900 Series

Cisco NCS-540Core

Cisco ASR 1001-XBORDA

ServiçosBorda BGP

Autenticação BNGConcentrador PPPoE

CGNAT / NAT64

ServidorSoftware de Gestão

Autenticação

AnelOSPF / MPLS

L2VPN

Cisco 1900CPE – Cliente

PPPoE

Cisco 1800CPE – Cliente

PPPoE

Cisco 2900BGP

179.160.44.52 /28

192.168.10.9 /24

192.168.1.0 /24 192.168.1.0 /24

100.64.20.3 /24100.64.20.2 /24

CGNAT179.160.44.52 =➔ 100.64.20.0 / 24

172.16.1.0 /24

172.16.2.0 /24

172.16.4.0 /24172.16.3.0 /24

172.16.5.0 /24PE

PE

PP

PPP

P

PE

2804:414:1004::/56

2804:414:1004:1::/64

2804:414:1004:1::/642804:414:1004:1::/64

ANELCisco ASR 920Cisco IE 3400

Bridge Domain

TOPOLOGIA FISICA DO LAB

Cisco ME 3400 Series

SYSTEM

16X

13X

14X

23X

24X

16X

1X

2X

11X

12X

1

2

RATING

100-240V~

1A-0.5A, 50-60Hz

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

CONSOLE

Cisco ME 3400 Series

SYSTEM

16X

13X

14X

23X

24X

16X

1X

2X

11X

12X

1

2

RATING

100-240V~

1A-0.5A, 50-60Hz

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

CONSOLE

ASR-9001 FAN

STATUSMGT LAN 1

LINK ACT

LINK ACT

MGT LAN 0

BITS J.211

SYNC 0

SYNC 1BITS J.211 CONSOLE

AUX

BAY 1

BAY 0

TOD

LINK ACT

IEEE 1588

GPS INTERFACE

10MHz 1PPS CRIT

MAJ

MIN

EUSB

ACO

SYNC

RSPFAIL

LCFAIL

CLUSTER 0

CLUSTER 1

SFP+ 1

SFP+ 3

SFP+ 0

SFP+ 2

Cisco ASR-9001

PSU1PSU0

AT

TE

NT

ION

ON

-OF

F F

OR

EN

TIR

E S

HE

LF

Cisco ASR 9001-SBORDA

NAT6464:FF9B::/96 =➔ IP PUBLICO

Agregação

Acesso

Borda

Partindo de um Ambiente IPv4 Only

ASR – 1001-X• BGPv4

• PPPoE IPv4

• BNG – RADIUS

• CGNAT

CONFIGURAÇÃO DO POOL PPPoE CGNAT - BNG SR 1001-X

interface Virtual-Template10

mtu 1480

ip unnumbered Loopback10

no ip unreachables

no ip proxy-arp

ip nat inside

no ipv6 nd ra suppress

peer default ip address pool v4cgn-pool1

ppp authentication chap pap calin

ppp ipcp dns 8.8.8.8 8.8.4.4

ip local pool v4cgn-pool1 100.64.20.10 100.64.20.110

CONFIGURAÇÃO CGNAT - BNG SR 1001-X

ip nat settings mode cgn

access-list 1 permit 100.64.20.0 0.0.0.255

ip nat settings pap bpa set—size 512 step-size 8

ip nat log translations flow-export v9 udp destination 192.168.10.16 2055

Proporção de Tradução x alocação de portas

1 IP Valido == > 100 Ips de CGNAT = 512 portas

ip nat pool POOL_CGNAT 179.150.55.106 179.150.55.106 prefix-length 28

ip nat inside source list 1 pool POOL_CGNAT

Passo 1: Preparando o Backbone IPv6

IPv6 sobre PPPoEDual Stack CGNAT

Partindo de um Ambiente IPv4 Only

ASR – 1001-X• BGPv4 BGPv6

• PPPoE IPv6

• BNG – RADIUS

• CGNAT

Qual parte do backbone precisa fornecer trânsito IPv6 ?

BNG

BGP

IPv4 sobre PPPoE

IPv4 IPv4IPv4

CGNAT

BNG

BGP

IPv4 e IPv6 sobre PPPoE

IPv4 IPv4IPv4

Qual parte do backbone precisa fornecer trânsito IPv6 ?

Trânsito IPv6

e IPv6 e IPv6

• Peering IPv6

• Endereçamento IPv6

• Roteamento IPv6

• Serviços IPv6

e IPv6

e IPv6

e IPv6

CGNAT

CONFIGURAÇÃO DE INTERFACES E POOL PPPoE IPv6 - BNG

BGPv6 SR 1001-Xinterface GigabitEthernet0/0/1

description BGP_ISR2900

ip address 172.31.200.2 255.255.255.0

ip nat outside

negotiation auto

ipv6 address 2804:414:1004:5::1/64

ipv6 enable

router bgp 65500

bgp router-id 172.31.200.2

bgp log-neighbor-changes

neighbor 2804:414:1004:5::2 remote-as 65600

neighbor 2804:414:1004:5::2 description BGP_ISR2900

neighbor 172.31.200.1 remote-as 65600

neighbor 172.31.200.1 description BGP_ISR2900

CONFIGURAÇÃO DE INTERFACES E POOL PPPoE IPv6 - BNG

BGPv6 SR 1001-Xinterface Virtual-Template10

ipv6 unnumbered Loopback10

ipv6 enable

ipv6 nd managed-config-flag

ipv6 nd other-config-flag

ipv6 nd router-preference High

ipv6 dhcp server dhcpv6

peer default ipv6 pool v6-pool1

ipv6 dhcp pool dhcpv6

prefix-delegation pool dhcpv6-pool1 lifetime 1800 600

dns-server 2001:4860:4860::8888

domain-name cisco.ainet.com.br

ipv6 local pool dhcpv6-pool1 2804:414:1004:4::/64

Lab 3: NAT64 – IPv6

CGNAT

Onde Chegamos

BNG

BGP

IPv4 sobre PPPoE

IPv4 IPv4IPv4

e IPv6 e IPv6 e IPv6

IPv6 e

IPv4

IPv6IPv6IPv4

NAT64

IPv6IPv4

CGNAT

CONFIGURAÇÃO DE NAT64

interface GigabitEthernet0/0/1

nat64 enable

ipv6 access-list MYLIST

permit ipv6 64:FF9B::/96 any

permit ipv6 2804:414:1004:4::/64 any

permit ipv6 2804:414:1004::/56 any

permit ipv6 2804:414:1004:1::/64 any

nat64 prefix stateful 2804:414:1004::/96

nat64 v4 pool NAT64 172.31.201.2 172.31.201.3

nat64 v6v4 list MYLIST pool NAT64 overload

v4(Público)

O que falta ser tratado?No Passado

v4

Hoje No Futuro

v4(Público)

v4(Público)

NAT

v4(Público)

v4(Privado)

v6

NAT

v4(Privado)

v6

CGN

v6

v4(Público)

v6v4(Privado)

v6

4to6 4to6

6to46to4

v4v4 v6 v6

v4(Privado)

IPv4 e IPv6 Operando em Paralelo

v4

v6v6

NAT64