Activation du routage IPV6
R1#conf t R1(config)#ipv6 unicast-routing R2#conf t R2(config)#ipv6 unicast-routing
Autoconfiguration de l’adresse IPv6 « Link Local »
Sur R1 et R2
R1(config)#int fa0/0 R1(config-if)#ipv6 enable R1(config-if)#no shutdown
Vérifications:
R1#debug ipv6 nd ICMP Neighbor Discovery events debugging is on *Feb 18 07:01:27.267: ICMPv6-ND: Sending NS for FE80::20F:F7FF:FEB1:A580 on FastEthernet0/0 *Feb 18 07:01:28.271: ICMPv6-ND: DAD: FE80::20F:F7FF:FEB1:A580 is unique. *Feb 18 07:01:28.271: ICMPv6-ND: Sending NA for FE80::20F:F7FF:FEB1:A580 on FastEthernet0/0 *Feb 18 07:01:28.271: ICMPv6-ND: Address FE80::20F:F7FF:FEB1:A580/128 is up on FastEthernet0/0 *Feb 18 07:01:28.275: ICMPv6-ND: Sending RA from FE80::20F:F7FF:FEB1:A580 to FF02::1 on FastEthernet0/0
R1#show ipv6 interface brief FastEthernet0/0 [up/up] FE80::20F:F7FF:FEB1:A580 Serial0/0 [administratively down/down] unassigned Serial0/1 [administratively down/down] unassigned R2#show ipv6 interface brief FastEthernet0/0 [up/up] FE80::20C:CEFF:FE46:DCA0 Serial0/0 [administratively down/down] unassigned Serial0/1 [administratively down/down] unassigned
R2#show ipv6 interface FastEthernet0/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::20C:CEFF:FE46:DCA0 No global unicast address is configured Joined group address(es): FF02::1 FF02::2 FF02::1:FF46:DCA0 MTU is 1500 bytes ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled ICMP unreachables are sent ND DAD is enabled, number of DAD attempts: 1 ND reachable time is 30000 milliseconds ND advertised reachable time is 0 milliseconds ND advertised retransmit interval is 0 milliseconds ND router advertisements are sent every 200 seconds ND router advertisements live for 1800 seconds ND advertised default router preference is Medium Hosts use stateless autoconfig for addresses.
Configuration d’une adresse IPV6 « Global Unicast » et « link local »
R1(config)#int fa0/0 R1(config-if)#ipv6 address 12:1:1:12::1/64 R1(config-if)#ipv6 address fe80::1 link-local R2(config)#int fa0/0 R2(config-if)#ipv6 address 12:1:1:12::2/64 R2(config-if)#ipv6 address fe80::2 link-local
Vérifications:
R2#show ipv6 interface fa0/0 FastEthernet0/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::1 Global unicast address(es): 12:1:1:12::2, subnet is 12:1:1:12::/64 Joined group address(es): FF02::1 FF02::2 FF02::1:FF00:1 FF02::1:FF00:2 MTU is 1500 bytes ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled ICMP unreachables are sent ND DAD is enabled, number of DAD attempts: 1 ND reachable time is 30000 milliseconds
R2#ping 12:1:1:12::1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 12:1:1:12::1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 0/2/8 ms R2#show ipv6 neighbors IPv6 Address Age Link-layer Addr State Interface 12:1:1:12::1 2 000f.f7b1.a580 STALE Fa0/0 FE80::1 2 000f.f7b1.a580 STALE Fa0/0
Configuration IPv6 d’une interface Loopback0
« eui-64 » permet une attribution automatique le l’adresse IPv6 en utilisant la mac adresse
R1(config)#interface lo0 R1(config-if)#ipv6 address 1:1:1:1::/64 eui-64 R1(config-if)#ipv6 address 1:1:1:1::1/64 R2(config)#interface lo0 R2(config-if)#ipv6 address 2:2:2:2::/64 eui-64 R2(config-if)#ipv6 address 2:2:2:2::2/64
Vérifications:
R2#show ipv6 interface brief Loopback0 [up/up] FE80::20C:CEFF:FE46:DCA0 2:2:2:2::2 2:2:2:2:20C:CEFF:FE46:DCA0 R2#show ipv6 interface lo0 Loopback0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::20C:CEFF:FE46:DCA0 Global unicast address(es): 2:2:2:2::2, subnet is 2:2:2:2::/64 2:2:2:2:20C:CEFF:FE46:DCA0, subnet is 2:2:2:2::/64 [EUI] Joined group address(es): FF02::1 FF02::2 FF02::1:FF00:2 FF02::1:FF46:DCA0 MTU is 1514 bytes ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled ICMP unreachables are sent ND DAD is not supported ND reachable time is 30000 milliseconds Hosts use stateless autoconfig for addresses.
Configuration d’une route statique IPv6
R1(config)#ipv6 route 2:2:2:2::/64 12:1:1:12::2 R2(config)#ipv6 route 1:1:1:1::/64 12:1:1:12::1
Vérifications:
R1#show ipv6 route IPv6 Routing Table - 8 entries Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP U - Per-user Static route I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2 ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 C 1:1:1:1::/64 [0/0] via ::, Loopback0 L 1:1:1:1::/128 [0/0] via ::, Loopback0 L 1:1:1:1:20F:F7FF:FEB1:A580/128 [0/0] via ::, Loopback0 S 2:2:2:2::/64 [1/0] via 12:1:1:12::2 C 12:1:1:12::/64 [0/0] via ::, FastEthernet0/0 L 12:1:1:12::1/128 [0/0] via ::, FastEthernet0/0 L FE80::/10 [0/0] via ::, Null0 L FF00::/8 [0/0] via ::, Null0 R1#ping 2:2:2:2::2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2:2:2:2::2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 0/1/4 ms
Configuration d’une route par défaut
R1(config)#ipv6 route 0::/0 12:1:1:12::2
Vérifications :
R1#show ipv6 route IPv6 Routing Table - 9 entries Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP U - Per-user Static route I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2 ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 S ::/0 [1/0] via 12:1:1:12::2 C 1:1:1:1::/64 [0/0] via ::, Loopback0 L 1:1:1:1::1/128 [0/0] via ::, Loopback0 L 1:1:1:1:20F:F7FF:FEB1:A580/128 [0/0] via ::, Loopback0 S 2:2:2:2::/64 [1/0] via 12:1:1:12::2 C 12:1:1:12::/64 [0/0] via ::, FastEthernet0/0 L 12:1:1:12::1/128 [0/0] via ::, FastEthernet0/0 L FE80::/10 [0/0] via ::, Null0 L FF00::/8 [0/0] via ::, Null0
Créer un entrée host
R1(config)#ipv6 host R2-Lo0 2:2:2:2::2 R1(config)#exit R1#ping R2-Lo0 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2:2:2:2::2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/4 ms
Global unicast Autoconfiguration
Configuration des routeurs R1, R2 et R3
- Seul R1 à une IPv6 Global unicast
- Seul R1 à activé le routage IPv6 ( R1(config)#ipv6 unicast-routing )
R1#show ipv6 interface brief FastEthernet0/0 [up/up] FE80::1 123::1 Loopback0 [up/up] FE80::1 1:1:1:1::1 R2#show ipv6 interface brief FastEthernet0/0 [up/up] FE80::2 Loopback0 [up/up] FE80::2 2:2:2:2::2 R3#show ipv6 interface brief FastEthernet0/0 [up/up] FE80::3 Loopback0 [up/up] FE80::3 3:3:3:3::3
R2 et R3 ont détecté les annonces du routeur R1
R2#show ipv6 routers Router FE80::1 on FastEthernet0/0, last update 1 min Hops 64, Lifetime 1800 sec, AddrFlag=0, OtherFlag=0, MTU=1500 HomeAgentFlag=0, Preference=Medium Reachable time 0 msec, Retransmit time 0 msec Prefix 123::/64 onlink autoconfig Valid lifetime 2592000, preferred lifetime 604800
Autoconfiguration de R2 et R3
R2(config)#int fa0/0 R2(config-if)#ipv6 address autoconfig R3(config)#int fa0/0 R3(config-if)#ipv6 address autoconfig
Vérifications:
R2#show ipv6 interface brief FastEthernet0/0 [up/up] FE80::2 123::2 Loopback0 [up/up] FE80::2 2:2:2:2::2 R3#show ipv6 interface brief FastEthernet0/0 [up/up] FE80::3 123::3 Loopback0 [up/up] FE80::3 3:3:3:3::3
R2 et R3 obtiennent un routeur par défaut puisque leur routage IPv6 n’est pas actif ( comme des hosts)
R3#show ipv6 interface fa0/0 FastEthernet0/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::3 Global unicast address(es): 123::3, subnet is 123::/64 [EUI/CAL/PRE] valid lifetime 2591892 preferred lifetime 604692 Joined group address(es): FF02::1 FF02::2 FF02::1:FF00:3 MTU is 1500 bytes ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled ICMP unreachables are sent ND DAD is enabled, number of DAD attempts: 1 ND reachable time is 30000 milliseconds Default router is FE80::1 on FastEthernet0/0
Modification du timer « ND reachable time »
R3(config)#int fa0/0 R3(config-if)#ipv6 nd reachable-time ? Reachability time in milliseconds R3(config-if)#ipv6 nd reachable-time 5000
Vérifications:
R3#show ipv6 interface fa0/0 FastEthernet0/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::3 Global unicast address(es): 123::3, subnet is 123::/64 [EUI/CAL/PRE] valid lifetime 2591870 preferred lifetime 604670 Joined group address(es): FF02::1 FF02::2 FF02::1:FF00:3 MTU is 1500 bytes ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled ICMP unreachables are sent ND DAD is enabled, number of DAD attempts: 1 ND reachable time is 5000 milliseconds
Configuration d’une association statique IPv6 / Mac Address
R3#conf t R3(config)#ipv6 neighbor 123::2 Fa0/0 000c.ce46.dca0 R3#show ipv6 neighbors IPv6 Address Age Link-layer Addr State Interfac 123::2 - 000c.ce46.dca0 REACH Fa0/0 123::1 10 000f.f7b1.a580 STALE Fa0/0 FE80::2 2 000c.ce46.dca0 STALE Fa0/0
Activation de IPv6 sur les switch 3560
SW1#conf t SW1(config)#sdm prefer dual-ipv4-and-ipv6 default Changes to the running SDM preferences have been stored, but cannot take effect until the next reload. Use 'show sdm prefer' to see what SDM preference is currently active. SW1#wr Building configuration... [OK] SW1#reload Proceed with reload? [confirm]