R1#ping FE80::C802:AFF:FE4D:1C Output Interface: Ethernet1/0 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to FE80::C802:AFF:FE4D:1C, timeout is 2 seconds: Packet sent with a source address of FE80::C801:AFF:FE3E:1C%Ethernet1/0 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 8/16/24 ms
两个相连的设备设定好 IPv6 Address 后,会自动成为 IPv6 Neighbor。
IPv6 并没有 ARP 机制,IPv6 Neighbor 提供相邻设备 MAC Address。
R1
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R1#show ipv6 neighbors IPv6 Address Age Link-layer Addr State Interface FE80::C802:AFF:FE4D:1C 1 ca02.0a4d.001c STALE Et1/0
R1(config)#int ethernet 1/0 R1(config-if)#ipv6 address 2001::/64 eui-64 R1(config-if)#exit R1#show ipv6 interface ethernet 1/0 Ethernet1/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::C801:14FF:FE6F:1C No Virtual link-local address(es): Global unicast address(es): 2001::C801:14FF:FE6F:1C, subnet is 2001::/64 [EUI]
R2(config-if)#ipv6 address autoconfig R2(config-if)#exit R2#show ipv6 interface ethernet 1/0 Ethernet1/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::C802:14FF:FE7E:1C No Virtual link-local address(es): Stateless address autoconfig enabled Global unicast address(es): 2001::C802:14FF:FE7E:1C, subnet is 2001::/64 [EUI/CAL/PRE]
此外,RA 信息中也包含 Default Gateway 的设定。
R2
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R2#show ipv6 route IPv6 Routing Table - default - 4 entries Codes: C - Connected, L - Local, S - Static, U - Per-user Static route B - BGP, R - RIP, H - NHRP, I1 - ISIS L1 I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRP EX - EIGRP external, ND - ND Default, NDp - ND Prefix, DCE - Destination NDr - Redirect, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1 OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, l - LISP ND ::/0 [2/0] via FE80::C801:14FF:FE6F:1C, Ethernet1/0 NDp 2001::/64 [2/0] via Ethernet1/0, directly connected L 2001::C802:1CFF:FEE0:1C/128 [0/0] via Ethernet1/0, receive L FF00::/8 [0/0] via Null0, receive
hostname R1 ! interface Ethernet1/0 ip address 192.168.12.1 255.255.255.0 ! ip route 0.0.0.0 0.0.0.0 192.168.12.2
R1
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R1#show ip route Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override
Gateway of last resort is 192.168.12.2 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 192.168.12.2 192.168.12.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.12.0/24 is directly connected, Ethernet1/0 L 192.168.12.1/32 is directly connected, Ethernet1/0
R2 与 R3 跑 EIGRP,让 Host A 可以与 ISATAP Server 通过 IPv4 通信。
R1#show ipv6 route IPv6 Routing Table - default - 4 entries Codes: C - Connected, L - Local, S - Static, U - Per-user Static route B - BGP, R - RIP, H - NHRP, I1 - ISIS L1 I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRP EX - EIGRP external, ND - ND Default, NDp - ND Prefix, DCE - Destination NDr - Redirect, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1 OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, l - LISP ND ::/0 [2/0] via FE80::5EFE:C0A8:1703, Tunnel0 NDp 2001:DB8:3::/64 [2/0] via Tunnel0, directly connected L 2001:DB8:3::C0A8:C01/128 [0/0] via Tunnel0, receive L FF00::/8 [0/0] via Null0, receive
R1
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R1#ping 2001:DB8:45::5 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2001:DB8:45::5, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 48/55/60 ms
R1#ping 2001:db8:45::5 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2001:DB8:45::5, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 48/52/64 ms