Contents

12.9.2 Lab – Configure IPv6 Addresses on Netjob-related DevicesPart 1: Cable the Network and also Connumber Basic Router and also Switch SettingsPart 2: Connumber IPv6 Addresses ManuallyRexternal Interconfront Rundown Table

12.9.2 Lab – Configure IPv6 Addresses on Netoccupational Devices

Topology

*

Addressing Table

DeviceInterfaceIPv6 AddressPresettle LengthDefault Gateway
R1G0/0/02001:db8:acad:a::164N/A
G0/0/12001:db8:acad:1::164N/A
S1VLAN 12001:db8:acad:1::b64N/A
PC-ANIC2001:db8:acad:1::364fe80::1
PC-BNIC2001:db8:acad:a::364fe80::1

Objectives

Part 1: Set Up Topology and also Configure Basic Router and also Switch SettingsPart 2: Connumber IPv6 Addresses ManuallyPart 3: Verify End-to-End Connectivity

Background / Scenario

In this lab, you will certainly connumber hosts and also gadget interdeals with via IPv6 addresses. You will certainly worry show regulates to check out IPv6 unicast addresses. You will additionally verify end-to-end connectivity making use of ping and traceroute commands.

You are watching: Why did pc-b receive the global routing prefix and subnet id that you configured on r1?

Note: The routers offered through CCNA manual labs are Cisco 4221 through Cisco IOS XE Release 16.9.4 (universalk9 image). The switches used in the labs are Cisco Catalyst 2960s with Cisco IOS Release 15.2(2) (lanbasek9 image). Other routers, switches, and Cisco IOS versions have the right to be supplied. Depfinishing on the model and also Cisco IOS version, the commands obtainable and also the output created can differ from what is displayed in the labs. Refer to the Rexternal Interchallenge Summary Table at the finish of the lab for the correct interchallenge identifiers.

Note: Make certain that the routers and also switches have actually been erased and have no startup configurations. If you are unsure, contact your instructor.

Instructor Note: Refer to the Instructor Lab Manual for the actions to initialize and also repack tools.

Note: The default 2960 Switch Database Manager (SDM) layout does not assistance IPv6. It might be necessary to problem the command sdm like dual-ipv4-and-ipv6 default to enable IPv6 addressing before using an IPv6 resolve to the VLAN 1 SVI.

Note: The default bias theme used by the Switch Database Manager (SDM) does not carry out IPv6 address capabilities. Verify that SDM is using either the dual-ipv4-and-ipv6 layout or the lanbase-routing template. The brand-new layout will certainly be supplied after reboot.

S1# display sdm preferFollow these actions to asauthorize the dual-ipv4-and-ipv6 theme as the default SDM template:

S1# configure terminalS1(config)# sdm like dual-ipv4-and-ipv6 defaultS1(config)# endS1# reload

Required Resources

1 Rexternal (Cisco 4221 through Cisco IOS XE Release 16.9.4 universal image or comparable)1 Switch (Cisco 2960 with Cisco IOS Release 15.2(2) lanbasek9 image or comparable)2 PCs (Windows with terminal emulation regime, such as Tera Term)Console cables to connumber the Cisco IOS tools via the consingle portsEthernet cables as presented in the topologyNote: The Gigalittle Ethernet interencounters on Cisco 4221 routers are autosensing and also an Ethernet straight-with cable may be provided between the rexternal and PC-B. If using one more model Cisco rexternal, it may be important to usage an Ethernet crossover cable.

Instructions

Part 1: Cable the Network-related and also Connumber Basic Rexternal and Switch Settings

After cabling the netjob-related, initializing and also reloading the router and also switch, finish the following:

Tip 1: Configure the rexternal.

Assign the hostname and configure fundamental device settings.

Step 2: Connumber the switch.

Assign the hostname and also configure fundamental tool settings.

Part 2: Connumber IPv6 Addresses Manually

Step 1: Asauthorize the IPv6 addresses to Ethernet interencounters on R1.

a. Assign the IPv6 worldwide unicast addresses, listed in the Addressing Table, to both Ethernet interfaces on R1.

Open configuration windowR1(config)# interface g0/0/0R1(config-if)# ipv6 deal with 2001:db8:acad:a::1/64R1(config-if)# no shutdownR1(config-if)# interconfront g0/0/1R1(config-if)# ipv6 attend to 2001:db8:acad:1::1/64R1(config-if)# no shutdownR1(config-if)# endInstructor Note: The IPv6 global presolve 2001:db8::/32 is a scheduled predeal with for use in documentation, as defined in RFC 3849.

b. Verify that the correct IPv6 unicast attend to is assigned to each interconfront.

R1# present ipv6 interchallenge briefEm0/0 unassignedGigabitEthernet0/0/0 FE80::D68C:B5FF:FECE:A0C0 2001:DB8:ACAD:A::1GigabitEthernet0/0/1 FE80::D68C:B5FF:FECE:A0C1 2001:DB8:ACAD:1::1Note: The link-local address (fe80::) shown is based on EUI-64 addressing, which instantly supplies the interface Media Access Control (MAC) deal with to create a 128-little IPv6 link-local attend to.

c. To gain the link-neighborhood attend to to enhance the global uniactors address on the interface, manually enter the link-local addresses on each of the Ethernet interdeals with on R1.

R1# config tGo into configuration commands, one per line. End through CNTL/Z.R1(config)# interconfront g0/0/0R1(config-if)# ipv6 resolve fe80::1 link-localR1(config-if)# interface g0/0/1R1(config-if)# ipv6 deal with fe80::1 link-localR1(config-if)# endNote: Each router interchallenge belongs to a sepaprice netoccupational. Packets through a link-local resolve never leave the neighborhood network; therefore, you have the right to use the same link-local attend to on both interencounters.

d. Use a command also of your choice to verify that the link-local deal with has been readjusted to fe80::1.

R1# show ipv6 interface g0/0/0GigabitEthernet0/0/0 is up, line protocol is up IPv6 is enabled, link-local attend to is FE80::1 No Virtual link-regional address(es): Global unicast address(es): 2001:DB8:ACAD:A::1, subnet is 2001:DB8:ACAD:A::/64 Joined team address(es): FF02::1 FF02::1:FF00:1 MTU is 1500 bytesWhich 2 multicast groups have actually been assigned to interface G0/0/0?The all-nodes multicast team (FF02::1) and also the Solicited Nodes multicast group (ff02::1:ff00:1).

Tip 2: Enable IPv6 routing on R1.

a. On a PC-B command also prompt, enter the ipconfig command also to research IPv6 address indevelopment assigned to the COMPUTER interconfront.

Has an IPv6 unicast resolve been assigned to the network interface card (NIC) on PC-B?No

b. Enable IPv6 routing on R1 utilizing the IPv6 unicast-routing command.

R1 # connumber terminalR1(config)# ipv6 unicast-routingR1(config)# exitc. Use a command to verify the new multicast team are assigned to interchallenge G0/0/0. Notice that the all-rexternal multicast team (ff02::2) now appears for interchallenge G0/0/0.

Note: This will certainly allow the PCs to acquire their IP address and also default gatemethod information immediately utilizing Statemuch less Address Autoconfiguration (SLAAC).

R1# present ipv6 interconfront g0/0/0GigabitEthernet0/0/0 is up, line protocol is up IPv6 is allowed, link-regional address is FE80::1 No Virtual link-neighborhood address(es): Global uniactors address(es): 2001:DB8:ACAD:A::1, subnet is 2001:DB8:ACAD:A::/64 Joined group address(es): FF02::1 FF02::2 FF02::1:FF00:1 MTU is 1500 bytesHosts usage statemuch less autoconfig for addresses.d. Now that R1 is component of the all-rexternal multicast team FF02::2, re-worry the ipconfig command also on PC-B and also research the IPv6 deal with information.

Why did PC-B obtain the Global Routing Prefix and also Subnet ID that you configured on R1?

On R1 all IPv6 interdeals with are now part of the All-router multicast team, FF02::2. This enables it to sfinish Router Advertisement (RA) messperiods via the Global Netoccupational Address and Subnet ID information to all nodes on the LAN. Notice that R1 additionally sent the link-neighborhood resolve, fe80::1, as the Default Gatemeans. The Computers will receive their IPv6 addresses and default gatemeans by means of SLAAC as lengthy as the advertised preresolve size is 64 bits .

Tip 3: Assign IPv6 addresses to the monitoring interconfront (SVI) on S1.

a. Asauthorize the IPv6 address for S1. Also assign a link-local deal with for this interface.

S1(config)# interchallenge vlan 1S1(config-if)# ipv6 address 2001:db8:acad:1::b/64S1(config-if)# ipv6 attend to fe80::b link-localS1(config-if)# endb. Use a command of your choice to verify that the IPv6 addresses are appropriately assigned to the management interchallenge.

S1# present ipv6 interface vlan1Vlan1 is up, line protocol is up IPv6 is allowed, link-regional deal with is FE80::B No Virtual link-neighborhood address(es): Global uniactors address(es): 2001:DB8:ACAD:1::B, subnet is 2001:DB8:ACAD:1::/64 Joined group address(es): FF02::1 FF02::1:FF00:B MTU is 1500 bytes ICMP error messperiods restricted to one eincredibly 100 millisecs ICMP reroutes are permitted ICMP unreachables are sent out Output features: Check hwidb ND DAD is permitted, number of DADVERTISEMENT attempts: 1 ND reachable time is 30000 millisecs (making use of 30000) ND NS retransmit interval is 1000 millisecondsStep 4: Asauthorize static IPv6 addresses to the PCs.a. Open the Ethernet Properties window on for each PC and asauthorize IPv6 addressing.

b. Verify both Computers have the correct IPv6 deal with information. Each COMPUTER have to have actually two Global IPv6 addresses: one static and also one SLACC

Part 3: Verify End-to-End Connectivity

From PC-A, ping fe80::1. This is the link-local resolve assigned to G0/0/1 on R1.

Ping the S1 management interface from PC-A.

Use the tracert command also on PC-A to verify that you have actually end-to-finish connectivity to PC-B.

From PC-B, ping PC-A.

From PC-B, ping the link-neighborhood resolve for G0/0/0 on R1.

Note: If end-to-finish connectivity is not established, troubleshoot your IPv6 deal with assignments to verify that you entered the addresses appropriately on all gadgets.

Reflection Questions

1. Why can the same link-neighborhood resolve, fe80::1, be assigned to both Ethernet interdeals with on R1?

Link-neighborhood packets never leave the neighborhood network, so the same link-regional attend to can be used on an interchallenge linked to a different local network.

See more: Why Was The Antiwar Movement Especially Strong At Colleges ?A

2. What is the Subnet ID of the IPv6 unicast address 2001:db8:acad::aaaa:1234/64?

0 (zero) or 0000 (zeros). The fourth hextet is the Subnet ID of an IPv6 attend to through a predeal with of /64. In the example, the fourth hextet consists of all zeros and also the IPv6 Omitting All 0 Segment ascendancy is using the double colon to depict the Subnet ID and also the first 2 hextets of the Interface ID. This is why the subnet of the Global unicast address of 2001:acad::aaaa:1234/64 is 2001:db8:acad::/64

Rexternal Interconfront Rundown Table

Router ModelEthernet Interchallenge #1Ethernet Interconfront #2Serial Interconfront #1Serial Interface #2
1800Quick Ethernet 0/0 (F0/0)Rapid Ethernet 0/1 (F0/1)Serial 0/0/0 (S0/0/0)Serial 0/0/1 (S0/0/1)
1900Gigalittle bit Ethernet 0/0 (G0/0)Gigalittle bit Ethernet 0/1 (G0/1)Serial 0/0/0 (S0/0/0)Serial 0/0/1 (S0/0/1)
2801Quick Ethernet 0/0 (F0/0)Rapid Ethernet 0/1 (F0/1)Serial 0/1/0 (S0/1/0)Serial 0/1/1 (S0/1/1)
2811Rapid Ethernet 0/0 (F0/0)Quick Ethernet 0/1 (F0/1)Serial 0/0/0 (S0/0/0)Serial 0/0/1 (S0/0/1)
2900Gigalittle bit Ethernet 0/0 (G0/0)Gigalittle bit Ethernet 0/1 (G0/1)Serial 0/0/0 (S0/0/0)Serial 0/0/1 (S0/0/1)
4221Gigabit Ethernet 0/0/0 (G0/0/0)Gigabit Ethernet 0/0/1 (G0/0/1)Serial 0/1/0 (S0/1/0)Serial 0/1/1 (S0/1/1)
4300Gigalittle Ethernet 0/0/0 (G0/0/0)Gigalittle Ethernet 0/0/1 (G0/0/1)Serial 0/1/0 (S0/1/0)Serial 0/1/1 (S0/1/1)

Note: To discover out just how the router is configured, look at the interfaces to identify the kind of router and exactly how many kind of interencounters the rexternal has. Tright here is no method to properly list all the combinations of configurations for each rexternal course. This table has identifiers for the possible combicountries of Ethernet and Serial interfaces in the gadget. The table does not include any kind of other kind of interconfront, even though a details rexternal may contain one. An instance of this can be an ISDN BRI interchallenge. The string in parenthesis is the legal abbreviation that can be offered in Cisco IOS commands to recurrent the interchallenge.

Device Configs

Router R1 (After component 1 of this lab)

R1# show runBuilding configuration...Current configuration : 1443 bytes!version 15.2service timestamps debug datetime msecbusiness timestamps log datetime mseccompany password-encryption!hostname R1!boot-start-markerboot-end-marker!!enable key 4 06YFDUHH61wAE/kLkDq9BGho1QM5EnRtoyr8cHAUg.2!no aaa new-modelmemory-dimension iomem 15!no ip doprimary lookupip cefno ipv6 cefmultiattach bundle-name authenticated!!interchallenge Embedded-Service-Engine0/0 no ip resolve shutdown!interconfront GigabitEthernet0/0/0 no ip resolve shutdown duplex auto rate auto!interchallenge GigabitEthernet0/0/1 no ip resolve shutdvery own duplex auto speed auto!interconfront Serial0/0/0 no ip deal with shutdvery own clock rate 2000000!interconfront Serial0/0/1 no ip attend to shutdown!ip forward-protocol nd!no ip http serverno ip http secure-server!control-plane!banner motd ^C*********************************************** Warning: Unauthorized accessibility is prohibited! ***********************************************^C!line con 0 password 7 01100F175804 loginline aux 0line 2 no activation-character no exec transfer desired none transport input all transfer output pad telnet rlogin lapb-ta mop udptn v120 ssh stopbits 1line vty 0 4 password 7 104D000A0618 login transport input all!scheduler alfind 20000 1000!end Switch S1 (After part 1 of this lab)

S1# present runBuilding configuration...Current configuration : 1624 bytes!version 15.0no service padservice timestamps debug datetime mseccompany timestamps log datetime mseccompany password-encryption!hostname S1!boot-start-markerboot-end-marker!enable secret 4 06YFDUHH61wAE/kLkDq9BGho1QM5EnRtoyr8cHAUg.2!no aaa new-modelsystem mtu routing 1500!!no ip domain-lookup!spanning-tree mode pvstspanning-tree extfinish system-id!vlan inner allocation plan ascending!interconfront FastEthernet0/1!interconfront FastEthernet0/2!interface FastEthernet0/3!interface FastEthernet0/4!interchallenge FastEthernet0/5!interface FastEthernet0/6!interconfront FastEthernet0/7!interconfront FastEthernet0/8!interchallenge FastEthernet0/9!interconfront FastEthernet0/10!interface FastEthernet0/11!interconfront FastEthernet0/12!interchallenge FastEthernet0/13!interface FastEthernet0/14!interchallenge FastEthernet0/15!interconfront FastEthernet0/16!interchallenge FastEthernet0/17!interchallenge FastEthernet0/18!interchallenge FastEthernet0/19!interconfront FastEthernet0/20!interface FastEthernet0/21!interchallenge FastEthernet0/22!interconfront FastEthernet0/23!interface FastEthernet0/24!interface GigabitEthernet0/1!interconfront GigabitEthernet0/2!interconfront Vlan1 no ip address!ip http serverip http secure-server!banner motd ^C*********************************************** Warning: Unauthorzed accessibility is prohibited! ***********************************************^C!line con 0 password 7 121A0C041104 loginline vty 0 4 password 7 121A0C041104 loginline vty 5 15 password 7 121A0C041104 login!end Router R1 (Final)

R1# display runBuilding configuration...Current configuration : 1577 bytes!variation 15.2organization timestamps debug datetime mseccompany timestamps log datetime msecorganization password-encryption!hostname R1!boot-start-markerboot-end-marker!permit secret 4 06YFDUHH61wAE/kLkDq9BGho1QM5EnRtoyr8cHAUg.2!no aaa new-modelmemory-dimension iomem 15!no ip domain lookupip cefipv6 unicast-routingipv6 cefmulticonnect bundle-name authenticated!!interconfront Embedded-Service-Engine0/0 no ip resolve shutdvery own !interchallenge GigabitEthernet0/0/0 no ip resolve duplex auto rate auto ipv6 deal with fe80::1 link-neighborhood ipv6 resolve 2001:db8:acad:a::1/64!interchallenge GigabitEthernet0/0/1 no ip resolve duplex auto rate auto ipv6 resolve fe80::1 link-neighborhood ipv6 attend to 2001:db8:acad:1::1/64!interconfront Serial0/0/0 no ip address shutdvery own clock rate 2000000!interchallenge Serial0/0/1 no ip address shutdvery own !ip forward-protocol nd!no ip http serverno ip http secure-server!control-plane!banner motd ^C*********************************************** Warning: Unauthorzed accessibility is prohibited! ***********************************************^C!line con 0 password 7 01100F175804 loginline aux 0line 2 no activation-character no exec carry wanted none deliver input all transport output pad telnet rlogin lapb-ta mop udptn v120 ssh stopbits 1line vty 0 4 password 7 104D000A0618 login transfer input all!scheduler alfind 20000 1000!end Switch S1 (Final)

* Warning: Unauthorzed accessibility is prohibited! ***********************************************^C!line con 0 password 7 121A0C041104 loginline vty 0 4 password 7 121A0C041104 loginline vty 5 15 password 7 121A0C041104 login!end