7.2.5.4 Lab – Configuring IPv6 Addresses on Netjob-related Devices Answers

Lab – Configuring IPv6 Addresses on Netjob-related Devices (Answers Version)

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You are watching: 1. why can the same link-local address, fe80::1, be assigned to both ethernet interfaces on r1?

Topology

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Addressing Table

DeviceInterfaceIPv6 AddressPresettle LengthDefault Gateway
R1G0/02001:DB8:ACAD:A::164N/A
G0/12001: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 Connumber Basic Router and Switch Settings

Part 2: Connumber IPv6 Addresses Manually

Part 3: Verify End-to-End Connectivity

Background / Scenario

Knowledge of the Net Protocol version 6 (IPv6) multiactors groups have the right to be beneficial once assigning IPv6 addresses manually. Understanding how the all-rexternal multiactors group is assigned and how to regulate resolve assignments for the Solicited Nodes multicast team deserve to proccasion IPv6 routing concerns and also help encertain ideal techniques are imposed.

In this lab, you will connumber hosts and device interfaces via IPv6 addresses and discover how the all-rexternal multicast team is assigned to a rexternal. You will certainly use show regulates to check out IPv6 unicast and multiactors addresses. You will additionally verify end-to-end connectivity utilizing the ping and traceroute commands.

Note: The routers provided with CCNA hands-on labs are Cisco 1941 ISRs via Cisco IOS Release 15.2(4)M3 (universalk9 image). The switches provided are Cisco Catalyst 2960s with Cisco IOS Release 15.0(2) (lanbasek9 image). Other routers, switches and also Cisco IOS versions have the right to be used. Depending on the design and Cisco IOS version, the commands obtainable and also output developed can differ from what is displayed in the labs. Refer to the Router Interface Outline 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 also have no startup configurations. If you are uncertain, call your instructor.

Answers Note: Refer to the Answers Lab Manual for the steps to initialize and reload tools.

Answers Note: The default bias design template 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 theme or the lanbase-routing layout. The brand-new theme will certainly be used after reboot also if the config is not saved.

S1# display sdm prefer

Follow these procedures to assign the dual-ipv4-and-ipv6 layout as the default SDM template:

S1# configure terminal

S1(config)# sdm like dual-ipv4-and-ipv6 default

S1(config)# end

S1# reload

Required Resources

1 Rexternal (Cisco 1941 with Cisco IOS software program, Release 15.2(4)M3 universal picture or comparable)1 Switch (Cisco 2960 through Cisco IOS Release 15.0(2) lanbasek9 photo or comparable)2 Computers (Windows 7 or 8 through terminal emulation regime, such as Tera Term)Console cables to configure the Cisco IOS devices by means of the console portsEthernet cables as shown in the topology

Note: The Gigabit Ethernet interencounters on Cisco 1941 routers are autosensing and an Ethernet straight-via cable may be offered in between the rexternal and PC-B. If using another design Cisco rexternal, it may be crucial to use an Ethernet crossover cable.

Part 1: Set Up Topology and Configure Basic Rexternal and Switch Settings

Tip 1: Cable the network-related as presented in the topology.Tip 2: Initialize and also reload the router and also switch.Step 3: Verify that the PC interfaces are configured to usage the IPv6 protocol.

Verify that the IPv6 protocol is active on both Computers by ensuring that the Web Protocol Version 6 (TCP/IPv6) check box is schosen in the Local Area Connection Properties window.

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Tip 4: Configure the router.Console right into the router and allow privileged EXEC mode.Asauthorize the tool name to the rexternal.Disable DNS lookapproximately proccasion the rexternal from attempting to analyze incorrectly entered regulates as though they were hostnames.Asauthorize class as the privileged EXEC encrypted password.Assign cisco as the console password and also allow login.Asauthorize cisco as the VTY password and permit login.Encrypt the clear text passwords.Create a banner that advises anyone accessing the gadget that unauthorized accessibility is prohibited.Save the running configuration to the startup configuration file.Step 5: Configure the switch.Console right into the switch and also allow privileged EXEC mode.Assign the tool name to the switch.Disable DNS lookapproximately proccasion the rexternal from attempting to translate wrongly gotten in commands as though they were hostnames.Assign class as the privileged EXEC encrypted password.Assign cisco as the console password and allow login.Asauthorize cisco as the VTY password and allow login.Encrypt the clear message passwords.Create a banner that advises anyone accessing the gadget that unauthorized accessibility is prohibited.Save the running configuration to the startup configuration file.

Part 2: Connumber IPv6 Addresses Manually

Tip 1: Asauthorize the IPv6 addresses to Ethernet interencounters on R1.Assign the IPv6 worldwide uniactors addresses, detailed in the Addressing Table, to both Ethernet interencounters on R1.R1(config)# interface g0/0R1(config-if)# ipv6 deal with 2001:db8:acad:a::1/64R1(config-if)# no shutdownR1(config-if)# interchallenge g0/1R1(config-if)# ipv6 address 2001:db8:acad:1::1/64R1(config-if)# no shutdown

R1(config-if)# end

R1#

Answers Note: The IPv6 international prefix 2001:DB8::/32 is a booked presolve for use in documentation, as explained in RFC 3849.Issue the display ipv6 interface brief command to verify that the correct IPv6 unicast deal with is assigned to each interface.R1# present ipv6 interchallenge briefEm0/0 unassignedGigabitEthernet0/0 FE80::D68C:B5FF:FECE:A0C0

2001:DB8:ACAD:A::1

GigabitEthernet0/1

FE80::D68C:B5FF:FECE:A0C1

2001:DB8:ACAD:1::1

Issue the display ipv6 interchallenge g0/0 command. Notice that the interconfront is listing two Solicited Nodes multiactors groups, bereason the IPv6 link-local (FE80) Interconfront ID was not manually configured to enhance the IPv6 unicast Interconfront ID.Note: The link-neighborhood attend to displayed is based upon EUI-64 addressing, which automatically supplies the interconfront Media Access Control (MAC) resolve to develop a 128-little bit IPv6 link-regional attend to.R1# display ipv6 interface g0/0GigabitEthernet0/0 is up, line protocol is up IPv6 is enabled, link-local attend to is FE80::D68C:B5FF:FECE:A0C0 No Virtual link-neighborhood address(es):

Global unicast address(es):

2001:DB8:ACAD:A::1, subnet is 2001:DB8:ACAD:A::/64

Joined group address(es):

FF02::1

FF02::1:FF00:1

FF02::1:FFCE:A0C0

MTU is 1500 bytes

To acquire the link-neighborhood address to match the unicast attend to on the interconfront, manually enter the link-local addresses on each of the Ethernet interfaces on R1.R1# config tEnter configuration regulates, one per line. End via CNTL/Z.R1(config)# interface g0/0

R1(config-if)# ipv6 deal with fe80::1 link-local

R1(config-if)# interconfront g0/1

R1(config-if)# ipv6 address fe80::1 link-local

R1(config-if)# end

R1#

Note: Each rexternal interchallenge belongs to a separate network-related. Packets via a link-neighborhood deal with never before leave the neighborhood network; therefore, you can use the exact same link-local attend to on both interdeals with.Re-issue the show ipv6 interchallenge g0/0 command. Notice that the link-neighborhood address has actually been adjusted to FE80::1 and that there is just one Solicited Nodes multiactors team noted.R1# display ipv6 interface g0/0GigabitEthernet0/0 is up, line protocol is up IPv6 is enabled, link-regional attend to is FE80::1

No Virtual link-regional 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::1:FF00:1

MTU is 1500 bytes

What multiactors groups have actually been assigned to interchallenge G0/0?____________________________________________________________________________________The all-nodes multicast group (FF02::1) and also the Solicited Nodes multiactors group (FF02::1:FF00:1).Step 2: Enable IPv6 routing on R1.On a PC-B command prompt, enter the ipconfig command to examine IPv6 address indevelopment assigned to the PC interconfront.Has an IPv6 unicast deal with been assigned to the network-related interchallenge card (NIC) on PC-B? _________ NoEnable IPv6 routing on R1 using the IPv6 unicast-routing command.R1 # connumber terminalR1(config)# ipv6 unicast-routingR1(config)# exit

R1#

*Dec 17 18:29:07.415: %SYS-5-CONFIG_I: Configured from console by consoleUse the show ipv6 interconfront g0/0 command also to view what multiactors teams are assigned to interconfront G0/0. Notice that the all-router multicast group (FF02::2) now shows up in the group list for interchallenge G0/0.Note: This will certainly permit the PCs to achieve their IP attend to and default gatemeans information instantly utilizing Statemuch less Address Autoconfiguration (SLAAC).R1# show ipv6 interconfront g0/0GigabitEthernet0/0 is up, line protocol is up IPv6 is permitted, link-regional address is FE80::1

No Virtual link-local 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::2

FF02::1:FF00:1

MTU is 1500 bytes

Now that R1 is part of the all-router multiactors group, re-worry the ipconfig command on PC-B. Examine the IPv6 deal with indevelopment.Why did PC-B obtain the Global Routing Prefix and also Subnet ID that you configured on R1?________________________________________________________________________________________________________________________________________________________________________R1 G0/0 is now component of the All-rexternal multiactors group, FF02::2. This enables it to sfinish Rexternal Advertisement (RA) messperiods through the Global Netoccupational Address and Subnet ID indevelopment to all nodes on the LAN. Notice that it also sent the link-neighborhood resolve, FE80::1, as the Default Gatemethod. The PCs will get their IP address and also default gatemethod using SLAAC.Step 3: Asauthorize IPv6 addresses to the administration interconfront (SVI) on S1.Asauthorize the IPv6 deal with provided in the Addressing Table to the administration interconfront (VLAN 1) on S1. Also assign a link-regional attend to for this interface. IPv6 command also syntaxes is the very same as on the rexternal.S1(config)# interface vlan 1S1(config-if)# ipv6 deal with 2001:db8:acad:1::b/64S1(config-if)# ipv6 attend to fe80::b link-local

S1(config-if)# end

S1#

*Mar 1 03:25:26.681: %SYS-5-CONFIG_I: Configured from consingle by consoleVerify that the IPv6 addresses are correctly assigned to the monitoring interface using the show ipv6 interconfront vlan1 command.S1# present ipv6 interface vlan1Vlan1 is up, line protocol is up IPv6 is enabled, link-neighborhood resolve is FE80::B No Virtual link-local address(es): Global unicast address(es): 2001:DB8:ACAD:1::B, subnet is 2001:DB8:ACAD:1::/64 Joined team address(es): FF02::1 FF02::1:FF00:B MTU is 1500 bytes ICMP error messperiods restricted to one eextremely 100 milliseconds

ICMP reroutes are enabled

ICMP unreachables are sent

Output features: Check hwidb

ND DADVERTISEMENT is allowed, variety of DADVERTISEMENT attempts: 1

ND reachable time is 30000 milliseconds (using 30000)

ND NS retransmit interval is 1000 milliseconds

S1#Note: The default 2960 Switch Database Manager (SDM) design template does not assistance IPv6. It might be necessary to worry the command sdm like dual-ipv4-and-ipv6 default to allow IPv6 addressing before applying an IPv6 deal with to the VLAN 1 SVI.

Step 4: Asauthorize static IPv6 addresses to the Computers.Open the Local Area Connection Properties home window on PC-A. Select Net Protocol Version 6 (TCP/IPv6) and click Properties.
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Click the Use the complying with IPv6 address radio button. Refer to the Addressing Table and enter the IPv6 address, Subnet presettle length, and Default gateway indevelopment. Click OK.
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Click Close to close the Local Area Connection Properties home window.Repeat Steps 4a to c to enter the static IPv6 information on PC-B. For the correct IPv6 attend to information, refer to the Addressing Table.Issue the ipconfig command also from the command also line on PC-B to verify the IPv6 attend to indevelopment.

Part 3: Verify End-to-End Connectivity

From PC-A, ping FE80::1. This is the link-regional attend to assigned to G0/1 on R1.
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Note: You deserve to additionally test connectivity by making use of the international unicast resolve, rather of the link-regional attend to.Ping the S1 administration interconfront from PC-A.
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Use the tracert command on PC-A to verify that you have end-to-end connectivity to PC-B.
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From PC-B, ping PC-A.
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From PC-B, ping the link-neighborhood deal with for G0/0 on R1.
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Note: If end-to-finish connectivity is not establiburned, troubleshoot your IPv6 deal with assignments to verify that you gone into the addresses properly on all gadgets.

Reflection

Why can the very same link-regional resolve, FE80::1, be assigned to both Ethernet interfaces on R1?______________________________________________________________________________________________________________________________________________________________________________Link-local packets never leave the local network-related, so the same link-regional attend to can be supplied on an interchallenge connected to a various local netoccupational.What is the Subnet ID of the IPv6 uniactors attend to 2001:db8:acad::aaaa:1234/64?_______________________________________________________________________________________0 (zero) or 0000 (zeros). The fourth hextet is the Subnet ID of an IPv6 deal with through a predeal with of /64. In the instance the fourth hextet has all zeros and also the IPv6 Omitting All 0 Segment rule is utilizing the double colon to depict the Subnet ID and also the first two hextets of the Interchallenge ID.

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Router Interface Rundown Table

Router Interconfront Summary
Rexternal ModelEthernet Interface #1Ethernet Interface #2Serial Interconfront #1Serial Interchallenge #2
1800Fast 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 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)
2801Rapid Ethernet 0/0 (F0/0)Quick Ethernet 0/1 (F0/1)Serial 0/1/0 (S0/0/0)Serial 0/1/1 (S0/0/1)
2811Fast Ethernet 0/0 (F0/0)Fast Ethernet 0/1 (F0/1)Serial 0/0/0 (S0/0/0)Serial 0/0/1 (S0/0/1)
2900Gigalittle Ethernet 0/0 (G0/0)Gigabit Ethernet 0/1 (G0/1)Serial 0/0/0 (S0/0/0)Serial 0/0/1 (S0/0/1)
Note: To uncover out exactly how the router is configured, look at the interencounters to determine the type of router and how many kind of interencounters the rexternal has. Tright here is no way to properly list all the combicountries of configurations for each rexternal class. This table consists of identifiers for the feasible combinations of Ethernet and also Serial interdeals with in the gadget. The table does not incorporate any type of other form of interface, also though a details rexternal may contain one. An instance of this might be an ISDN BRI interconfront. The string in parenthesis is the legal abbreviation that have the right to be provided in Cisco IOS regulates to represent the interface.

Device Configs

Rexternal R1 (After part 1 of this lab)

R1#sh run