Infrastructure Réseau

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• CCNA

Globales

	Command
copy config	Router(config) #Copy run start
Nom Hote	Router(config) #hostanme R1
show config router	Router #show run

no ip domain-lookup

Sécu

Sécu mode non priviligié

Router(config)# line console 0
Router(config-line)# password mot-de-passe-console
Router(config-line)# login

sécu mode enable

Router(config)#service password-encryption
Router(config)# enable secret mot-de-passe-mode-privilégié

SSH uniquement

Router(config)#ip domain-name formation
Router(config)#username admin password class
Router(config)#crypto key generate rsa
Router(config)#line vty 0  15
Router(config-line)#transport input ssh
Router(config-line)#login local

IPV4

Routing Classique

Router

Type of route	Type	Command
default	nextHop	ip route 0.0.0.0 0.0.0.0 192.168.X.X
default	interface	ip route 0.0.0.0 0.0.0.0 g0/0
network	nextHop	ip route 172.16.X.X 255.255.X.X 192.168.X.X
network	interface	ip route 172.16.X.X 255.255.X.X g0/0

Routing OSPF multit default route

• Poids de la route seondaire > 110

Router A (Route principale par défault)

ip route 0.0.0.0 0.0.0.0 g0/0

router ospf 1
    default-information originate        

Router B (Route secondaire par défault)

ip route 0.0.0.0 0.0.0.0 f0/0 110

router ospf 1
    default-information originate
    redistribute static subnets

OSPF Multit Area

Router

ip routing

router ospf 1
    default-information originate           => Router principale
    network 192.168.1.X 0.0.0.X area 1      => réseau connecté + Area au quelle elle appartient
    network 192.168.2.X 0.0.0.X area 2
    network 192.168.3.X 0.0.0.X area 3

EIGRP

Router

router eigrp 1
    no auto-summary
    redistribute static

Interface Addresse

Router

interface f0/0
    no switchport                               => si switch l3
    ip addresse 192.168.X.X 255.255.X.X         => Addresse Statique
    ip addresse dhcp                            => config par dhcp
    ip helper-addresse <DHCP-Server Addresse>   => si serveur DHCP pour clients
    no shut

Client

• Statique => table de routage
• DHCP => config serveur

Multit Vlan

Inteface unique

Router

interface f0/0
    no shut
interface f0/0.10           => Vlan 10
    encapsulation dot1Q 10
    ip add X.X.X.X 255.X.X.X
    no shut
interface f0/0.20           => Vlan 20
    encapsulation dot1Q 20
    ip add X.X.X.X 255.X.X.X
    no shut

Architecture en arbre

Router

Spanning Tree (4096 * 6)

spanning-tree vlan 10,20,100 priority 24576

définition vlan

vlan 10
    name IT

inteface vlan

vlan 10
    ip addresse 192.168.10.X 255.255.255.X
    no shut

interface switch L3

inteface f0/0
    switchport trunck encapsulation dot1q
    switchport mode trunk

Switch

inteface router

interface f0/0
    switchport mode trunk

interface client

interface f0/24
    switchport mode access
    switchport access vlan 10

DHCP routeur StateFull

Serveur

si serveur -> config serveur
routeur -> ip helper addresse <AddressServer>

Routeur

ip dhcp pool PoolName
    network 192.168.1.0 255.255.255.0
    default-router 192.168.1.254
    dns-server 8.8.8.8
    domain-name formation.lab

ip dhcp excluded-address 192.168.1.1 192.168.1.10

interface g0/0
    ip address 192.168.1.254 255.255.255.0
    no shut

Client

• IP config auto

LACP

2 Routeurs avec plusieurs connexion entre eux (range interface) -> a effectué sur les 2 routeurs

interface range g1/0/11-14
    channel-group 1 mode active
    channel-protocol lacp
    switchport trunk encapsulation dot1q
    switchport mode trunk

HSRP (Hot Standby Router Protocol) !! 1 standby / vlan 10 => standy 10 / vlan 20 standby 20

Routeur Principal (active)

interface vlan 1
    ip addresse 10.1.10.251  255.255.255.0             ! ip sur le réseau de l'interface
    standby 1 ip 10.1.10.254              ! groupe 39 -> ip virtuelle 10.1.10.254
    standby 1 priotity 105                ! priority > 100 pour active
    standby 1 preempt
    standby 1 timers 2 7
    standby 1 track g1/0/24               ! diminussion prioirté si interface shutdown

Routeur secours (standby)

  interface vlan 1
      ip addresse 10.1.10.252  255.255.255.0            ! ip sur le réseau de l'interface
      standby 1 ip 10.1.10.254           ! groupe 39 -> ip virtuelle 10.1.10.254
      standby 1 preempt
      standby 1 timers 2 7
      standby 1 track g1/0/24            ! diminussion prioirté si interface shutdown

IPV6

Activer routing ipv6 unicast-routing

Ipv6 default route ipv6 route ::/0 <ipv6-addr-nextHop>

Ipv6 route ipv6 route <addresseRéseau/64> <ipv6-addr-nextHop>

Interface addresse

Router

Interface g0/0
    ipv6 enable
    ipv6 addresse X:X:X::X/64
    ipv6 addresse fe80::X link-local
    no shut

PC

• Addresse == addresse réseau pc
• Default gateway == link-local (fe80::X) routeur

Routing

Links

• IPV6
• IPV6 routing
• OSPF
• DHCP ipv6
• Tunneling

Statique host route nextHop -> vers hôte

Router

Ipv6 route 2001:db8::X/64 2001:db8::Y <Distance>
           host address. nextHop address.

Directly connected Floating Host route

Router

Ipv6 route 2001:db8::/64 2001:db8::Y <Distance>
           Host network. nextHop address.

OSPF (multi area)

Router

Ipv6 unicastRouting

ipv6 router ospf 1
    router-id x.x.x.x

Interface g0/0
    ipv6 ospf 1 area X
    ipv6 addressee FE80::X link-local

EIGRP

Router

router eigrp 1
    eigrp router-id 1.1.1.1
    no auto-summary
    
interface g0/0
    ipv6 eigrp 1

StateLess -> SLAAC

Router

Ipv6 unicastRouting

interface g0/0
    ipv6 addresse 2001:DB8:1::254/64
    ipv6 enable
    no shut

Client

• Ipv6 -> AutoConfig

StateLess (avec pool address)

Router

Ipv6 unicastRouting

ipv6 dhcp pool STATELESS
    domain-name adminkim.com
    dns-server <address-DNS>
    exit

Router(config)#int fa0/1
    ipv6 dhcp server STATELESS
    ipv6 addresse <routerAdresse>
    ipv6 nd other-config-flag
    no shut

Client

• Ipv6 -> AutoConfig

StateFull -> DHCP

Server

• Enable ipv6 dhcp

Router

Ipv6 unicastRouting

ipv6 dhcp pool STATEFULL
    adresse prefix 2001:DB8:1::/64
    dns-server <address-DNS>
    domain-name formation.lab lifetime 1800 600

interface g0/0
    ipv6 addresse 2001:DB8:1::254/64
    ipv6 dhcp server STATEFULL
    ipv6 nd managed-config-flag
    no shut

Client

• Ipv6 -> dhcp

DualStack

Déployement IPV4 et IPV6 en même temps sur les appareils

Tunneling

Routeur Source

<config address Interface>

ipv6 unicast-routing

interface tunnel 0
    ipv6 address <addressRouteurTunnel>
    tunnel source <interfaceSortie>
    tunnel destination <addressDestinationIPV4>
    tunnel mode ipv6ip         ( mode encapsulation ipv6 dans ipv4 )


ipv6 route <addresseRéseauDest>/64 <addIPV6TunnelRouterDest>

Routeur Destination

<config address Interface>

ipv6 unicast-routing

interface tunnel 0
    ipv6 address <addressRouteurTunnel>
    tunnel source <interfaceSortie>
    tunnel destination <addressDestinationIPV4>
    tunnel mode ipv6ip         ( mode encapsulation ipv6 dans ipv4 )


ipv6 route <addresseRéseauDest>/64 <addIPV6TunnelRouterDest>