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Subnetting IPv6Cisco Confidential 2012 Cisco and/or its affiliates. All rights reserved.# 2012 Cisco and/or its affiliates. All rights reserved.Cisco Confidential#IPv6 AddressingIPv6 Address Types: Starting with Global UnicastMulticastUnicastAnycastAssignedSolicited NodeGlobal UnicastUnspecifiedLoopbackEmbedded IPv4Link-LocalUnique LocalFF00::/8FF02::1:FF00:0000/104::/128::1/1282000::/33FFF::/3FE80::/10FEBF::/10FC00::/7FDFF::/7::/80Note: There are no broadcast addresses in IPv6 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Interface IDSubnet IDGlobal Routing PrefixStructure of a Global Unicast Addressn bitsm bits128-n-m bitsGlobal unicast addresses are similar to IPv4 addresses. 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Interface IDSubnet IDGlobal Routing PrefixStructure of a Global Unicast Addressn bitsm bits128-n-m bitsGlobal unicast addresses are similar to IPv4 addresses.RoutableUnique 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Interface IDSubnet IDGlobal Routing PrefixStructure of a Global Unicast Addressn bitsm bits128-n-m bits001Range 2000::/3 to 3FFF::/3 (4th bit can be a 0 or a 1)Global unicast addresses are similar to IPv4 addresses.RoutableUnique 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Interface IDSubnet IDGlobal Routing PrefixStructure of a Global Unicast Addressn bitsm bits128-n-m bits0016

IANAs allocation of IPv6 address space in 1/8th sections Global unicast addresses are similar to IPv4 addresses.RoutableUnique Range 2000::/3 to 3FFF::/3 (4th bit can be a 0 or a 1) 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Global Unicast Addresses and the 3-1-4 ruleIPv4 Unicast Address 32 bitsNetwork portionHost portionSubnet portionCisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Global Unicast Addresses and the 3-1-4 ruleIPv4 Unicast Address 32 bitsNetwork portionHost portionSubnet portion/?Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Global Unicast Addresses and the 3-1-4 ruleIPv4 Unicast Address 32 bitsNetwork portionHost portionSubnet portionIPv6 Global Unicast Address 128 bitsGlobal Routing PrefixInterface ID/?Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Global Unicast Addresses and the 3-1-4 ruleIPv4 Unicast Address 32 bitsNetwork portionHost portionSubnet portionIPv6 Global Unicast Address 128 bitsGlobal Routing PrefixInterface ID/64/?* 64-bit Interface ID gives us 18 quintillion (18,446,744,073,709,551,616) devices/subnet.* Supports 48bit and 64-bit MAC addresses as the Interface ID (coming).Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Global Unicast Addresses and the 3-1-4 ruleIPv4 Unicast Address 32 bitsNetwork portionHost portionSubnet portionIPv6 Global Unicast Address 128 bitsGlobal Routing PrefixInterface IDFixed 16-bit Subnet ID/64/?* 64-bit Interface ID gives us 18 quintillion (18,446,744,073,709,551,616) devices/subnet.* 16-bit Subnet ID gives us 65,536 subnets. (Yes, you can use the all 0s and all 1s.) /48Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Global Unicast Addresses and the 3-1-4 rule2001 : 0DB8 : AAAA : 1111 : 0000 : 0000 : 0000 : 0100

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Global Unicast Addresses and the 3-1-4 rule2001 : 0DB8 : AAAA : 1111 : 0000 : 0000 : 0000 : 0100

16 bits16 bits16 bits16 bits16 bits16 bits16 bits16 bits 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Global Routing PrefixGlobal Unicast Addresses and the 3-1-4 rule2001 : 0DB8 : AAAA : 1111 : 0000 : 0000 : 0000 : 0100

16 bits16 bits16 bits16 bits16 bits16 bits16 bits16 bits/48 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Subnet IDGlobal Routing PrefixGlobal Unicast Addresses and the 3-1-4 rule2001 : 0DB8 : AAAA : 1111 : 0000 : 0000 : 0000 : 0100

16 bits16 bits16 bits16 bits16 bits16 bits16 bits16 bits/48/64 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Interface IDSubnet IDGlobal Routing PrefixGlobal Unicast Addresses and the 3-1-4 rule2001 : 0DB8 : AAAA : 1111 : 0000 : 0000 : 0000 : 0100

16 bits16 bits16 bits16 bits16 bits16 bits16 bits16 bits/48/64 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Interface IDSubnet IDGlobal Routing PrefixGlobal Unicast Addresses and the 3-1-4 rule2001 : 0DB8 : AAAA : 1111 : 0000 : 0000 : 0000 : 0100

16 bits16 bits16 bits16 bits16 bits16 bits16 bits16 bits3/48/64 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Interface IDSubnet IDGlobal Routing PrefixGlobal Unicast Addresses and the 3-1-4 rule2001 : 0DB8 : AAAA : 1111 : 0000 : 0000 : 0000 : 0100

16 bits16 bits16 bits16 bits16 bits16 bits16 bits16 bits31/48/64 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Interface IDSubnet IDGlobal Routing PrefixGlobal Unicast Addresses and the 3-1-4 rule2001 : 0DB8 : AAAA : 1111 : 0000 : 0000 : 0000 : 0100

16 bits16 bits16 bits16 bits16 bits16 bits16 bits16 bits314/48/64 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public# Global Routing Prefix SizesInterface IDSubnet IDGlobal Routing Prefix 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public# Global Routing Prefix SizesInterface IDSubnet IDGlobal Routing Prefix/23*RIR* This is a minimum allocation. The prefix-length may be less if it can be justified.

Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public# Global Routing Prefix SizesInterface IDSubnet IDGlobal Routing Prefix/32/23*RIR*ISP Prefix* This is a minimum allocation. The prefix-length may be less if it can be justified.

Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public# Global Routing Prefix SizesInterface IDSubnet IDGlobal Routing Prefix/48/32/23*RIR*ISP Prefix*Site Prefix* This is a minimum allocation. The prefix-length may be less if it can be justified.

16-bit Subnet IDCisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public# Global Routing Prefix SizesInterface IDSubnet IDGlobal Routing Prefix/48/32/23*RIR*ISP Prefix*Site Prefix* This is a minimum allocation. The prefix-length may be less if it can be justified./56Possible Home Site Prefix

8-bit Subnet IDCisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public# Global Routing Prefix SizesInterface IDSubnet IDGlobal Routing Prefix/48/64/32/23*RIR*ISP Prefix*Site PrefixSubnet Prefix* This is a minimum allocation. The prefix-length may be less if it can be justified./56Possible Home Site Prefix

Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Divide these addresses as per 3-1-4 rule2001:1111:2222:3333:4444:5555:6666:7777 Answer- Global Routing Prefix=2001:1111:2222 (3 Hextets)Subnet ID = 3333 (1 Hextet)Interface ID = 4444:5555:6666:7777 (4 Hextets) 2001::1 Answer- Global Routing Prefix = 2001:0000:0000 (3 Hextets)Subnet ID = 0000(1 Hextet)Interface ID =0000:0000:0000:0001 (4 Hextets) 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Subnetting IPv64 specific subnets could be:

2340:1111:AAAA::/48 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#27Subnetting IPv64 specific subnets could be: 2340:1111:AAAA:0000::/642340:1111:AAAA:0001::/642340:1111:AAAA:0002::/642340:1111:AAAA:000A::/64Note: A valid abbreviation is to remove the 3 leading 0s from the first shown quartet.2340:1111:AAAA:1::/64

2340:1111:AAAA::/48Just increment by 1 in hex 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#28Subnetting IPv6Create 4 subnets of /64 from 2001:1111:3333::/48 1st Subnet = 2001:1111:3333:0000 2nd Subnet = 2001:1111:3333:0001 3rd Subnet = 2001:1111:3333:0002 4th Subnet = 2001:1111:3333:0003 We have 16 bits for subnetting so we can create 2^16 Subnets

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Interface IDSubnet IDGlobal Routing PrefixSubnetting into the Interface IDPrefix64 bits48 bits16bits/48/1122001 : 0DB8 : AAAA : 0000 : 0000 : 0000 : 0000 : 00002001 : 0DB8 : AAAA : 0000 : 0000 : 0000 : 0001 : 00002001 : 0DB8 : AAAA : 0000 : 0000 : 0000 : 0002 : 0000 thru2001 : 0DB8 : AAAA : FFFF : FFFF : FFFF : FFFE : 00002001 : 0DB8 : AAAA : FFFF : FFFF : FFFF : FFFF : 0000

Global Routing PrefixSubnet-IDInterface ID 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Subnetting on a nibble boundaryInterface IDSubnet IDGlobal Routing PrefixSubnet Prefix/6860 bits48 bits20 bits/48/68Subnetting on a nibble (4 bit) boundary makes it easier to list the subnets: /64, /68, /72, etc.2001:0DB8:AAAA:0000:0000::/682001:0DB8:AAAA:0000:1000::/682001:0DB8:AAAA:0000:2000::/68 through2001:0DB8:AAAA:FFFF:F000::/68

Just increment by 1 in hex 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Extend the Subnet ID (On a nibble boundary)Extend 2001:DB8:AAAA/48 network into 3 2001:DB8:AAAA/96 Subnets2001:DB8:AAAA = Network or Global Routing Prefix = 48 bits2001:DB8:AAAA:SSSS:SSSS:SSSS:HHHH:HHHHS means SubnetSo we have 48 bits to do Subnetting 1st Subnet = 2001:DB8:AAAA:0000:0000:0000/962nd Subnet = 2001:DB8:AAAA:0000:0000:0001/963rd Subnet = 2001:DB8:AAAA:0000:0000:0002/96

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Extend the Subnet ID (On a nibble boundary)Extend 2001:DB8:AAAA/64 network into 3 2001:DB8:AAAA/80 Subnets2001:DB8:AAAA:0000 = Network or Global Routing Prefix = 64 bits2001:DB8:AAAA:0000:SSSS:HHHH:HHHH:HHHHSo we have 16 bits to do Subnetting 1st Subnet = 2001:DB8:AAAA:0000:0000/802nd Subnet = 2001:DB8:AAAA:0000:0001/803rd Subnet = 2001:DB8:AAAA:0000:0002/80S means Subnet 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Extend the Subnet ID ( On a nibble boundary)Extend 2001:DB8:AAAA/64 network into 3 2001:DB8:AAAA/76 Subnets2001:DB8:AAAA:0000 = Network or Global Routing Prefix = 64 bitsEach digit in Hextet is a Nibble = 4bits2001:DB8:AAAA:0000:SSSH:HHHH:HHHH:HHHHSo we have 3 nibbles = 12 bits for subnetting So the subnets are 2001:DB8:AAAA:0000:0000/76 2001:DB8:AAAA:0000:0010/76 2001:DB8 :AAAA:0000:0020/76 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Extend the Subnet ID ( On a nibble boundary)Extend 2001:DB8:AAAA/64 network into 3 2001:DB8:AAAA/72 Subnets2001:DB8:AAAA:0000 = Network or Global Routing Prefix = 64 bitsEach digit in Hextet is a Nibble 2001:DB8:AAAA:0000:SSHH:HHHH:HHHH:HHHHSo we have 2 nibbles = 8 bits for subnetting So the subnets are 2001:DB8:AAAA:0000:0000/72 2001:DB8:AAAA:0000:0100/72 2001:DB8 :AAAA:0000:0200/72 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Extend the Subnet ID ( On a nibble boundary)Extend 2001:DB8:AAAA/64 network into 3 2001:DB8:AAAA/68 Subnets2001:DB8:AAAA:0000 = Network or Global Routing Prefix = 64 bitsEach digit in Hextet is a Nibble 2001:DB8:AAAA:0000:SHHH:HHHH:HHHH:HHHHSo we have 1 nibble = 4bits to Subnet = 16 SubnetsSo the subnets are 2001:DB8:AAAA:0000:0000/68 2001:DB8:AAAA:0000:1000/68 2001:DB8 :AAAA:0000:2000/68 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Subnetting within a nibbleInterface IDSubnet IDGlobal Routing PrefixSubnet Prefix/7058 bits48 bits22 bits/48/702001:0DB8:AAAA:0000:0000::/7000002001:0DB8:AAAA:0000:0400::/7001002001:0DB8:AAAA:0000:0800::/7010002001:0DB8:AAAA:0000:0C00::/701100

Four Bits: The two leftmost bits are part of the Subnet-ID, whereas the two rightmost bits belong to the Interface ID.

bits 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Extend the Subnet ID ( Within a nibble)Extend 2001:DB8:AAAA/64 network into 2 2001:DB8:AAAA/65 SubnetsIn the case where the Subnet boundary is within a Nibble, we have to convert the nibble to binary to identify the subnetsA nibble is a hexadecimal digit = 4 binary digits 0 0 0 0 65 66 67 68 So we have 1 bit to do subnetting that is 2 Subnets1st Subnet will have 65th Bit 0 or 0000 which is equal to 0 in Hex2nd Subnet will have 65th Bit 1 or 1000 in binary = 8 in Hex1st Subnet is 2001:DB8:AAAA:0000:0000/652nd Subnet is 2001:DB8:AAAA:0000:8000/65

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Extend the Subnet ID ( Within a nibble)Extend 2001:DB8:AAAA/64 network into 4 2001:DB8:AAAA/66 Subnets0 0 0 0 65 66 67 68 So we have 2 bits to do subnetting that is 4 Subnets00 01 10 and 11 in binary are the subnet bits Add the trailing zeroes 0000 0100 1000 1100 0 4 8 C in Hex1st Subnet is 2001:DB8:AAAA:0000:0000/662nd Subnet is 2001:DB8:AAAA:0000:4000/663rd Subnet is 2001:DB8:AAAA:0000:8000/664th Subnet is 2001:DB8:AAAA:0000:C000/66

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Extend the Subnet ID ( Within a nibble)Extend 2001:DB8:AAAA/64 network into 8 2001:DB8:AAAA/67 Subnets0 0 0 0 65 66 67 68 So we have 3 bits to do subnetting that is 8 Subnets 000 001 010 011 100 101 110 111 in binary are the subnet bitsAdd the trailing 0s 0000 0010 0100 0110 1000 1010 1100 1110 0 2 4 6 8 A C E in hex are the Subnets1st Subnet is 2001:DB8:AAAA:0000:0000::/672nd Subnet is 2001:DB8:AAAA:0000:2000::/673rd Subnet is 2001:DB8:AAAA:0000:4000::/674th Subnet is 2001:DB8:AAAA:0000:8000::/67

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Extend the Subnet ID ( Within a nibble)Extend 2001:DB8:AAAA/64 network into 2001:DB8:AAAA/77 SubnetsSo Number of bits for Global Routing Prefix = 64 bitsNumber of Subnet bits = 77 64 = 13 bits 2001:DB8:AAAA:0000:SSSX X is the nibble but lets break down all the subnet bits into binary 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 065 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80The first subnet will be 2001:DB8:AAAA:0000:0000/77The second subnet will be 2001:DB8:AAAA:0000:0008/77 The third Subnet will be 2001:DB8:AAAA:0000:0010/77

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Other Subnets6 5 66 67 68 69 70 71 72 73 74 75 76 770 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 0 0 1 00 0 0 0 0 0 0 0 0 0 0 1 10 0 0 0 0 0 0 0 0 0 1 0 00 0 0 0 0 0 0 0 0 0 1 0 11 1 1 1 1 1 1 1 1 1 1 1 1

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Other Subnets in Hex 6 5 66 67 68 69 70 71 72 73 74 75 76 770 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 80 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 00 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 82001:DB8 :AAAA:0018/77

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Identifying the range of IPv6 subnetsWhat is the range of 2001:DB8:AAAA/96 subnet?The subnet is 2001:DB8:AAAA:0000:0000:0000The range is 2001:DB8:AAAA:0000:0000:0000:0000:0000 To 2001:DB8:AAAA:0000:0000:0000:FFFF:FFFF( All 0s and All Fs in the host part are valid and can be assigned to hosts) What is range of 2001:DB8:AAAA:FFFF:AAAA:1111:FFFF/112 subnet?The Subnet is 2001:DB8:AAAA:FFFF:AAAA:1111:FFFFThe range is 2001:DB8:AAAA:FFFF:AAAA:1111:FFFF:0000 To 2001:DB8:AAAA:FFFF:AAAA:1111:FFFF:FFFF

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Identify the rangeIdentify the range of the following subnet

2001:DB8:AAAA:0000:0018/77Lets concentrate on the last 2 nibbles of the 5th Hextet 0 0 0 1 1 0 0 0 1 8 The starting address is the Subnet number and all zeros 2001:DB8:AAAA:0000:0018::/77 The first address is 2001:DB8:AAAA:0000:0018The last address is the Subnet number and all 0nes0 0 0 1 1 1 1 1 and 1s till the 128th bit 2001:DB8:AAAA:0000:001F:FFFF:FFFF:FFFF

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#45Implementing IPv6Cisco Confidential 2012 Cisco and/or its affiliates. All rights reserved.# 2012 Cisco and/or its affiliates. All rights reserved.Cisco Confidential#Lets Configure

Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#R1# conf tR1(config)# interface fastethernet 0/0Configuring a Static Global Unicast AddressExactly the same as an IPv4 address only different.Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#R1# conf tR1(config)# interface fastethernet 0/0R1(config-if)# ipv6 address 2001:0db8:cafe:0001::1/64Configuring a Static Global Unicast AddressExactly the same as an IPv4 address only different.No space between IPv6 address and Prefix-length.No spaceCisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#R1# conf tR1(config)# interface fastethernet 0/0R1(config-if)# ipv6 address 2001:0db8:cafe:0001::1/64R1(config-if)# no shutdownR1(config-if)# exitR1(config)# Configuring a Static Global Unicast AddressExactly the same as an IPv4 address only different.No space between IPv6 address and Prefix-length.No spaceCisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#R1# conf tR1(config)# interface fastethernet 0/0R1(config-if)# ipv6 address 2001:0db8:cafe:0001::1/64R1(config-if)# no shutdownR1(config-if)# exitR1(config)# Configuring a Static Global Unicast AddressExactly the same as an IPv4 address only different.No space between IPv6 address and Prefix-length.IOS commands for IPv6 are very similar to their IPv4 counterpart.No spaceCisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#R1# conf tR1(config)# interface fastethernet 0/0R1(config-if)# ipv6 address 2001:0db8:cafe:0001::1/64R1(config-if)# no shutdownR1(config-if)# exitR1(config)# Configuring a Static Global Unicast AddressExactly the same as an IPv4 address only different.No space between IPv6 address and Prefix-length.IOS commands for IPv6 are very similar to their IPv4 counterpart.All 0s and all 1s are valid IPv6 host IPv6 addresses.No spaceCisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public# show running-config command on router R1R1# show running-config

interface FastEthernet0/0 no ip address duplex auto speed auto ipv6 address 2001:DB8:CAFE:1::1/64!

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#show ipv6 interface brief command on router R1R1# show ipv6 interface brief

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#show ipv6 interface brief command on router R1R1# show ipv6 interface briefFastEthernet0/0 [up/up] FE80::203:6BFF:FEE9:D480 2001:DB8:CAFE:1::1R1#

Global unicast address 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#show ipv6 interface brief command on router R1R1# show ipv6 interface briefFastEthernet0/0 [up/up] FE80::203:6BFF:FEE9:D480 2001:DB8:CAFE:1::1R1#

Global unicast addressLink-local unicast addressLink-local address automatically created when (before) the global unicast address is. 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#show ipv6 interface brief command on router R1R1# show ipv6 interface briefFastEthernet0/0 [up/up] FE80::203:6BFF:FEE9:D480 2001:DB8:CAFE:1::1R1#

Global unicast addressLink-local unicast addressLink-local address automatically created when (before) the global unicast address is.We will discuss link-local addresses very soon. 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#show ipv6 interface fastethernet 0/0 command on R1R1# show ipv6 interface fastethernet 0/0FastEthernet0/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::203:6BFF:FEE9:D480 Global unicast address(es): 2001:DB8:CAFE:1::1, subnet is 2001:DB8:CAFE:1::/64 Joined group address(es): FF02::1 FF02::2 FF02::1:FF00:1 FF02::1:FFC2:828D MTU is 1500 bytes R1#

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#PC-1: Static Global Unicast Address

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#PC-1: Static Global Unicast Address

2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#PC1> ipconfigWindows IP ConfigurationEthernet adapter Local Area Connection: Connection-specific DNS Suffix . : IPv6 Address. . . . . . . . . . . : 2001:db8:cafe:1::100 Link-local IPv6 Address . . . . . : fe80::50a5:8a35:a5bb:66e1%11 Default Gateway . . . . . . . . . : 2001:db8:cafe:1::1

PC-1: Static Global Unicast Address 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Global UnicastDynamicIPv6 UnnumberedIPv6 AddressStateless AutoconfigurationDHCPv6StaticEUI-64Modified EUI-64 Format: Creates a 64-bit Interface ID from a 48-bit MAC addressManual 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#Modified Extended Unique Identifier-64 or Modified EUI-64 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#R1(config)# interface fastethernet 0/0

Routers global unicast address can be configured with:Statically configured prefix and 2001:0DB8:CAFE:1::/64Fa0/0

R1Global Unicast:Prefix: 2001:0DB8:CAFE:1::/64Interface ID: EUI-64Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#R1(config)# interface fastethernet 0/0

Routers global unicast address can be configured with:Statically configured prefix and EUI-64 generated Interface ID2001:0DB8:CAFE:1::/64Fa0/0

R1Global Unicast:Prefix: 2001:0DB8:CAFE:1::/64Interface ID: EUI-64Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#R1(config)# interface fastethernet 0/0R1(config-if)# ipv6 address 2001:0db8:cafe:0001::/64 ?

Routers global unicast address can be configured with:Statically configured prefix and EUI-64 generated Interface ID2001:0DB8:CAFE:1::/64Fa0/0

R1Global Unicast:Prefix: 2001:0DB8:CAFE:1::/64Interface ID: EUI-64Cisco Public 2013 Cisco and/or its affiliates. All rights reserved.# 2013 Cisco and/or its affiliates. All rights reserved.Cisco Public#R1(config)# interface fastethernet 0/0R1(config-if)# ipv6 address 2001:0db8:cafe:0001::/64 ? eui-64 Use eui-64 interface identifier