tunnel IPv6 tra due routers IPv4 aut-config slaac
13.12 2019 | by massimilianoConfigurazione di un tunnel manuale IPV6 tra due routers IPv4 core permettendo lo scambio di routes tra due isole IPv6 […]
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Configurazione di un tunnel manuale IPV6 tra due routers IPv4 core permettendo lo scambio di routes tra due isole IPv6 LAN remote
Architettura di riferimento:
Attraverso la aut-config slaac dei rispettivi router i PC ottengono la seguente configurazione:
PC1:
FastEthernet0 Connection:(default port)
Physical Address…………….: 00E0.A38C.E7C0
Link-local IPv6 Address………: FE80::2E0:A3FF:FE8C:E7C0
IPv6 Address………………..: 2001:1111:1111:0:2E0:A3FF:FE8C:E7C0/64
Default Gateway……………..: FE80::201:42FF:FE40:E801
DNS Servers…………………: ::
DHCPv6 Client DUID…………..: 00-01-00-01-2B-0D-C3-EE-00-E0-A3-8C-E7-C0
PC2:
FastEthernet0 Connection:(default port)
Physical Address…………….: 00D0.BA17.7988
Link-local IPv6 Address………: FE80::2D0:BAFF:FE17:7988
IPv6 Address………………..: 2001:1111:1111:0:2D0:BAFF:FE17:7988/64
Default Gateway……………..: FE80::201:42FF:FE40:E801
DNS Servers…………………: ::
DHCPv6 Client DUID…………..: 00-01-00-01-40-77-87-80-00-D0-BA-17-79-88
PC3:
FastEthernet0 Connection:(default port)
Physical Address…………….: 0005.5E20.9337
Link-local IPv6 Address………: FE80::205:5EFF:FE20:9337
IPv6 Address………………..: 2003:3333:3333:0:205:5EFF:FE20:9337/64
Default Gateway……………..: FE80::201:C9FF:FE77:401
DNS Servers…………………: ::
DHCPv6 IAID…………………: 1731170596
DHCPv6 Client DUID…………..: 00-01-00-01-E5-D8-69-80-00-05-5E-20-93-37
PC4:
FastEthernet0 Connection:(default port)
Physical Address…………….: 0040.0BA7.5453
Link-local IPv6 Address………: FE80::240:BFF:FEA7:5453
IPv6 Address………………..: 2003:3333:3333:0:240:BFF:FEA7:5453/64
Default Gateway……………..: FE80::201:C9FF:FE77:401
DNS Servers…………………: ::
DHCPv6 Client DUID…………..: 00-01-00-01-12-A0-3D-A9-00-40-0B-A7-54-53
Configurazione Routers
R1:
ipv6 unicast-routing
!
interface Tunnel0
no ip address
mtu 1476
ipv6 address 3FFE:B00:C18:1::3/127
tunnel source FastEthernet0/1
tunnel destination 1.1.1.2
tunnel mode ipv6ip
!
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address 2001:1111:1111::1/64
ipv6 address autoconfig
ipv6 enable
!
interface FastEthernet0/1
ip address 1.1.1.1 255.255.255.252
duplex auto
speed auto
!
router ospf 1
router-id 192.168.1.1
log-adjacency-changes
network 1.1.1.0 0.0.0.3 area 0
!
ipv6 route 2003:3333:3333::/64 3FFE:B00:C18:1::2
R2:
ipv6 unicast-routing
!
interface Tunnel0
no ip address
mtu 1476
ipv6 address 3FFE:B00:C18:1::2/127
tunnel source FastEthernet0/1
tunnel destination 1.1.1.1
tunnel mode ipv6ip
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address 2003:3333:3333::1/64
ipv6 address autoconfig
ipv6 enable
!
interface FastEthernet0/1
ip address 1.1.1.2 255.255.255.252
duplex auto
speed auto
!
router ospf 1
router-id 192.168.2.2
log-adjacency-changes
network 1.1.1.0 0.0.0.3 area 0
!
ipv6 route 2001:1111:1111::/64 3FFE:B00:C18:1::3
!
VERIFICA:
R1#sh ipv6 interface tunnel 0
Tunnel0 is up, line protocol is up
IPv6 is enabled, link-local address is FE80::201:C9FF:FE63:1A12
Global unicast address(es):
3FFE:B00:C18:1::3, subnet is 3FFE:B00:C18:1::2/127
Joined group address(es):
FF02::1
FF02::2
FF02::1:FF00:3
FF02::1:FF63:1A12
MTU is 1476 bytes
!
R1#sh ipv6 route
IPv6 Routing Table – 7 entries
Codes: C – Connected, L – Local, S – Static, R – RIP, B – BGP
U – Per-user Static route, M – MIPv6
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
D – EIGRP, EX – EIGRP external
C 2001:1111:1111::/64 [0/0]
via ::, FastEthernet0/0
L 2001:1111:1111::1/128 [0/0]
via ::, FastEthernet0/0
S 2003:3333:3333::/64 [1/0]
via 3FFE:B00:C18:1::2
C 3FFE:B00:C18:1::2/127 [0/0]
via ::, Tunnel0
L 3FFE:B00:C18:1::3/128 [0/0]
via ::, Tunnel0
C FD11:192:168:1::1/128 [0/0]
via ::, Loopback0
L FF00::/8 [0/0]
via ::, Null0
R1#ping ipv6 2003:3333:3333:0:205:5EFF:FE20:9337 # PC3 remote LAN
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2003:3333:3333:0:205:5EFF:FE20:9337, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/2 ms
R2#sh ipv6 interface tunnel 0
Tunnel0 is up, line protocol is up
IPv6 is enabled, link-local address is FE80::290:2BFF:FE42:BB2C
Global unicast address(es):
3FFE:B00:C18:1::2, subnet is 3FFE:B00:C18:1::2/127
Joined group address(es):
FF02::1
FF02::2
FF02::1:FF00:2
FF02::1:FF42:BB2C
MTU is 1476 bytes
!
R2#sh ipv6 route
IPv6 Routing Table – 7 entries
Codes: C – Connected, L – Local, S – Static, R – RIP, B – BGP
U – Per-user Static route, M – MIPv6
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
D – EIGRP, EX – EIGRP external
S 2001:1111:1111::/64 [1/0]
via 3FFE:B00:C18:1::3
C 2003:3333:3333::/64 [0/0]
via ::, FastEthernet0/0
L 2003:3333:3333::1/128 [0/0]
via ::, FastEthernet0/0
C 3FFE:B00:C18:1::2/127 [0/0]
via ::, Tunnel0
L 3FFE:B00:C18:1::2/128 [0/0]
via ::, Tunnel0
C FD11:192:168:2::2/128 [0/0]
via ::, Loopback0
L FF00::/8 [0/0]
via ::, Null0
!
R2#ping ipv6 2001:1111:1111:0:2E0:A3FF:FE8C:E7C0 # PC1 remote LAN
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1111:1111:0:2E0:A3FF:FE8C:E7C0, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/2/12 ms