Difference between revisions of "Basic configuration IPv6 Cisco IOS"
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Revision as of 11:39, 2 June 2011
Contents
Enabling IPv6 Globally
Start the IPv6 routing process and allow IPv6 CEF switching.
R3(config)#<input>ipv6 unicast-routing</input>
R3(config)#<input>ipv6 cef</input>Configuring IPv6 address on interface
R3(config)#<input>int fa0/0</input>
R3(config-if)#<input>ipv6 enable</input>
R3(config-if)#<input>ipv6 address 2001:16D8:DD85:139::7/64</input>
R3(config-if)#<input>exit</input>
R3(config)#<input>int fa0/1</input>
R3(config-if)#<input>ipv6 enable</input>
R3(config-if)#<input>ipv6 address 2001:16D8:DD85:140::1/64</input>
R3(config-if)#<input>ipv6 dhcp relay destination 2001:16D8:DD85:4::166</input>Showing IPv6 configuration on interface
R3#<input>show ipv6 int fa0/0</input>
FastEthernet0/0 is up, line protocol is up
IPv6 is enabled, link-local address is FE80::128C:CFFF:FE2E:916E
No Virtual link-local address(es):
Global unicast address(es):
2001:16D8:DD85:139::7, subnet is 2001:16D8:DD85:139::/64
Joined group address(es):
FF02::1
FF02::2
FF02::1:FF00:7
FF02::1:FF2E:916E
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 (using 30000)
ND advertised reachable time is 0 (unspecified)
ND advertised retransmit interval is 0 (unspecified)
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.Default IPv6 Unicast Route
Notice the 2000::/3 prefix which identifies the total IPv6 Unicast area. The next-hop IPv6 address 2001:16D8:DD85:4::1 should - as in IPv4 - be on a local attached subnet.
R3(config)#<input>ipv6 route 2000::/3 2001:16D8:DD85:139::1</input>Showing IPv6 Route table
R3#<input>show ipv6 route</input>
IPv6 Routing Table - default - 7 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
D - EIGRP, EX - EIGRP external, NM - NEMO, ND - Neighbor Discovery
l - LISP
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 2000::/3 [1/0]
via 2001:16D8:DD85:139::1
C 2001:16D8:DD85:139::/64 [0/0]
via FastEthernet0/0, directly connected
L 2001:16D8:DD85:139::7/128 [0/0]
via FastEthernet0/0, receive
C 2001:16D8:DD85:140::/64 [0/0]
via FastEthernet0/1, directly connected
L 2001:16D8:DD85:140::1/128 [0/0]
via FastEthernet0/1, receive
L FF00::/8 [0/0]
via Null0, receive