Basic IPv6 configuration example
Network requirements
As shown in Figure 86, configure IPv6 addresses for the routers and verify that they can reach each other. Configure a route to the host on Router B. Enable IPv6 for the host to automatically obtain an IPv6 address through IPv6 ND. The host has a route to Router B.
Figure 86: Network diagram
Configuration procedure
Configure Router A:
# Configure a global unicast address for interface GigabitEthernet 1/0/1.
<RouterA> system-view [RouterA] interface gigabitethernet 1/0/1 [RouterA-GigabitEthernet1/0/1] ipv6 address 3001::1/64 [RouterA-GigabitEthernet1/0/1] quit
# Configure a global unicast address for interface GigabitEthernet 1/0/2 and enable it to advertise RA messages (an interface does not advertises RA messages by default).
[RouterA] interface gigabitethernet 1/0/2 [RouterA-GigabitEthernet1/0/2] ipv6 address 2001::1/64 [RouterA-GigabitEthernet1/0/2] undo ipv6 nd ra halt [RouterA-GigabitEthernet1/0/2] quit
Configure Router B:
# Configure a global unicast address for interface GigabitEthernet 1/0/1.
<RouterB> system-view [RouterB] interface gigabitethernet 1/0/1 [RouterB-GigabitEthernet1/0/1] ipv6 address 3001::2/64 [RouterB-GigabitEthernet1/0/1] quit
# Configure an IPv6 static route to the host.
[RouterB] ipv6 route-static 2001:: 64 3001::1
Configure the host:
Enable IPv6 on the host to automatically obtain an IPv6 address through IPv6 ND.
# Display neighbor information for GigabitEthernet 1/0/2 on Router A.
[RouterA] display ipv6 neighbors interface gigabitethernet 1/0/2 Type: S-Static D-Dynamic O-Openflow R-Rule I-Invalid IPv6 address Link Layer VID Interface State T Age FE80::215:E9FF:FEA6:7D14 0015-e9a6-7d14 N/A GE1/0/2 STALE D 1238 2001::15B:E0EA:3524:E791 0015-e9a6-7d14 N/A GE1/0/2 STALE D 1248
The output shows that the IPv6 global unicast address that the host obtained is 2001::15B:E0EA:3524:E791.
Verifying the configuration
# Display IPv6 interface information on Router A.
[RouterA] display ipv6 interface gigabitethernet 1/0/1
GigabitEthernet1/0/1 current state: UP
Line protocol current state: UP
IPv6 is enabled, link-local address is FE80::20F:E2FF:FE00:2
Global unicast address(es):
3001::1, subnet is 3001::/64
Joined group address(es):
FF02::1
FF02::2
FF02::1:FF00:1
FF02::1:FF00:2
MTU is 1500 bytes
ND DAD is enabled, number of DAD attempts: 1
ND reachable time is 30000 milliseconds
ND retransmit interval is 1000 milliseconds
Hosts use stateless autoconfig for addresses
IPv6 Packet statistics:
InReceives: 25829
InTooShorts: 0
InTruncatedPkts: 0
InHopLimitExceeds: 0
InBadHeaders: 0
InBadOptions: 0
ReasmReqds: 0
ReasmOKs: 0
InFragDrops: 0
InFragTimeouts: 0
OutFragFails: 0
InUnknownProtos: 0
InDelivers: 47
OutRequests: 89
OutForwDatagrams: 48
InNoRoutes: 0
InTooBigErrors: 0
OutFragOKs: 0
OutFragCreates: 0
InMcastPkts: 6
InMcastNotMembers: 25747
OutMcastPkts: 48
InAddrErrors: 0
InDiscards: 0
OutDiscards: 0
[RouterA] display ipv6 interface gigabitethernet 1/0/2
GigabitEthernet1/0/2 current state: UP
Line protocol current state: UP
IPv6 is enabled, link-local address is FE80::20F:E2FF:FE00:1C0
Global unicast address(es):
2001::1, subnet is 2001::/64
Joined group address(es):
FF02::1
FF02::2
FF02::1:FF00:1
FF02::1:FF00:1C0
MTU is 1500 bytes
ND DAD is enabled, number of DAD attempts: 1
ND reachable time is 30000 milliseconds
ND retransmit interval is 1000 milliseconds
ND advertised reachable time is 0 milliseconds
ND advertised retransmit interval is 0 milliseconds
ND router advertisements are sent every 600 seconds
ND router advertisements live for 1800 seconds
Hosts use stateless autoconfig for addresses
IPv6 Packet statistics:
InReceives: 272
InTooShorts: 0
InTruncatedPkts: 0
InHopLimitExceeds: 0
InBadHeaders: 0
InBadOptions: 0
ReasmReqds: 0
ReasmOKs: 0
InFragDrops: 0
InFragTimeouts: 0
OutFragFails: 0
InUnknownProtos: 0
InDelivers: 159
OutRequests: 1012
OutForwDatagrams: 35
InNoRoutes: 0
InTooBigErrors: 0
OutFragOKs: 0
OutFragCreates: 0
InMcastPkts: 79
InMcastNotMembers: 65
OutMcastPkts: 938
InAddrErrors: 0
InDiscards: 0
OutDiscards: 0
# Display IPv6 interface information on Router B.
[RouterB] display ipv6 interface gigabitethernet 1/0/1
GigabitEthernet1/0/1 current state: UP
Line protocol current state: UP
IPv6 is enabled, link-local address is FE80::20F:E2FF:FE00:1234
Global unicast address(es):
3001::2, subnet is 3001::/64
Joined group address(es):
FF02::1
FF02::2
FF02::1:FF00:2
FF02::1:FF00:1234
MTU is 1500 bytes
ND DAD is enabled, number of DAD attempts: 1
ND reachable time is 30000 milliseconds
ND retransmit interval is 1000 milliseconds
Hosts use stateless autoconfig for addresses
IPv6 Packet statistics:
InReceives: 117
InTooShorts: 0
InTruncatedPkts: 0
InHopLimitExceeds: 0
InBadHeaders: 0
InBadOptions: 0
ReasmReqds: 0
ReasmOKs: 0
InFragDrops: 0
InFragTimeouts: 0
OutFragFails: 0
InUnknownProtos: 0
InDelivers: 117
OutRequests: 83
OutForwDatagrams: 0
InNoRoutes: 0
InTooBigErrors: 0
OutFragOKs: 0
OutFragCreates: 0
InMcastPkts: 28
InMcastNotMembers: 0
OutMcastPkts: 7
InAddrErrors: 0
InDiscards: 0
OutDiscards: 0
# Ping Router A and Router B from the host, and ping Router A and the host from Router B to verify that they can reach each other.
![[NOTE: ]](images/note.png) | NOTE: To ping a link-local address, use the –i parameter to specify an interface for the link-local address. | |
[RouterB] ping ipv6 -c 1 3001::1 Ping6(56 data bytes) 3001::2 --> 3001::1, press CTRL_C to break 56 bytes from 3001::1, icmp_seq=0 hlim=64 time=4.404 ms --- Ping6 statistics for 3001::1 --- 1 packet(s) transmitted, 1 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 4.404/4.404/4.404/0.000 ms [RouterB] ping ipv6 -c 1 2001::15B:E0EA:3524:E791 Ping6(56 data bytes) 3001::2 --> 2001::15B:E0EA:3524:E791, press CTRL_C to break 56 bytes from 2001::15B:E0EA:3524:E791, icmp_seq=0 hlim=64 time=5.404 ms --- Ping6 statistics for 2001::15B:E0EA:3524:E791 --- 1 packet(s) transmitted, 1 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 5.404/5.404/5.404/0.000 ms
The output shows that Router B can ping Router A and the host. The host can also ping Router B and Router A (output not shown).