ipv6 challenge lab ccnp

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CCNPv6 ROUTE

Chapter 8 Lab 8-4, IPv6 Challenge Lab Instructor Version

Topology

Objectives� Implement the topology diagram using the instructions in the Requirements section.� Change the IPv6 IGP from OSPFv3 to RIPng.

Background In the first part of this lab (Steps 1 through 7), you configure IPv4 with EIGRP on routers R1, R2 and R3. You also configure IPv6 with OSPFv3 on routers R1, R3 and R4, create an IPv6 tunnel between R1 and R3 and then test network connectivity. In the second part of the lab (Step 8), you replace the OSPFv3 routing protocol with RIPng and re-test connectivity.

CCNPv6 ROUTE


Required Resources Note: This lab uses Cisco 1841 routers with Cisco IOS Release 12.4(24)T1 and the Advanced IP Services image c1841-advipservicesk9-mz.124-24.T1.bin. You can use other routers (such as a 2801 or 2811) andCisco IOS Software versions if they have comparable capabilities and features. Depending on the router model and Cisco IOS Software version, the commands available and output produced might vary from what is shown in this lab.

� 4 routers (Cisco 1841 with Cisco IOS Release 12.4(24)T1 Advanced IP Services or comparable)� Serial and console cables

Requirements1. Configure all interfaces in the topology diagram with the IPv4 or IPv6 addresses shown.

2. Use EUI-64 addresses on the link between R3 and R4.

3. Configure EIGRP AS 1 on R1, R2, and R3 to route all IPv4 networks.

4. Disable EIGRP automatic summarization.

5. Configure a manual IPv6 tunnel between R1 and R3.

6. Include all IPv6 networks in OSPF area 0 on R1, R3, and R4.

7. Manually configure a router ID of 172.16.4.1 on R4 (this address does not need to be reachable).

8. Remove the OSPFv3 configuration commands from R1, R3, and R4 and configure RIPng to run on these routers using RIP1 as the process name.

Notes: __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

CCNPv6 ROUTE


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CCNPv6 ROUTE


Router Interface Summary Table

Router Interface SummaryRouter Model Ethernet Interface

#1Ethernet Interface #2

Serial Interface #1

Serial Interface #2

1700 Fast Ethernet 0 (FA0)

Fast Ethernet 1 (FA1)

Serial 0 (S0) Serial 1 (S1)

1800 Fast Ethernet 0/0 (FA0/0)

Fast Ethernet 0/1 (FA0/1)

Serial 0/0/0 (S0/0/0)

Serial 0/0/1 (S0/0/1)



Serial 0/0 (S0/0) Serial 0/1 (S0/1)



Serial 0/0/0 (S0/0/0)

Serial 0/0/1 (S0/0/1)

Note: To find out how the router is configured, look at the interfaces to identify the type of router and how many interfaces the router has. Rather than list all combinations of configurations for each router class, this table includes identifiers for the possible combinations of Ethernet and serial interfaces in the device. The table does not include any other type of interface, even though a specific router might contain one. For example, for an ISDN BRI interface, the string in parenthesis is the legal abbreviation that can be used in Cisco IOS commands to represent the interface.

CCNPv6 ROUTE


IPv6 Challenge Lab - Answer Key (Instructor version)Note: EIGRP and OSPFv3 are configured and tested in Part 1. In Part 2, OSPFv3 is replaced by RIPng.

Part 1 – IPv6 with EIGRP and OSPFv3The R1 IPv4 and IPv6 routing tables are shown here.R1# show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.16.0.0/24 is subnetted, 2 subnetsD 172.16.23.0 [90/41024000] via 172.16.12.2, 00:02:30, Serial0/0/0C 172.16.12.0 is directly connected, Serial0/0/0

R1# show ipv6 routeIPv6 Routing Table - Default - 8 entriesCodes: C - Connected, L - Local, S - Static, U - Per-user Static route

B - BGP, M - MIPv6, R - RIP, I1 - ISIS L1I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRPEX - EIGRP externalO - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2

C FEC0::1:0/112 [0/0]via Loopback0, directly connected

L FEC0::1:1/128 [0/0]via Loopback0, receive

O FEC0::3:1/128 [110/1000]via FE80::AC10:1703, Tunnel0

O FEC0::4:1/128 [110/2562]via FE80::AC10:1703, Tunnel0

C FEC0::13:0/112 [0/0]via Tunnel0, directly connected

L FEC0::13:1/128 [0/0]via Tunnel0, receive

O FEC0:34::/64 [110/2562]via FE80::AC10:1703, Tunnel0

L FF00::/8 [0/0]via Null0, receive

Tcl ResultsNote: You will need to substitute the R3 and R4 serial interface EUI-64 addresses in the Tcl script because they vary for every router. To obtain these addresses, use the show ipv6 interface interface command onrouters R3 and R4.tclsh

foreach address {172.16.12.1

CCNPv6 ROUTE


172.16.12.2172.16.23.2172.16.23.3FEC0::1:1FEC0::3:1FEC0::4:1FEC0::13:1FEC0::13:3<R3’s S0/1/0 EUI-64 address><R4’s S0/0/0 EUI-64 address>} {ping $address }

R1# tclshR1(tcl)#foreach address {+>(tcl)#172.16.12.1+>(tcl)#172.16.12.2+>(tcl)#172.16.23.2+>(tcl)#172.16.23.3+>(tcl)#FEC0::1:1+>(tcl)#FEC0::3:1+>(tcl)#FEC0::4:1+>(tcl)#FEC0::13:1+>(tcl)#FEC0::13:3+>(tcl)#FEC0:34::21A:2FFF:FEC6:91D0+>(tcl)#FEC0:34::21A:2FFF:FE7E:9648+>(tcl)#} {+>(tcl)#ping $address }

Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.12.1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 56/58/68 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.12.2, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.23.2, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.23.3, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 56/56/56 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::1:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::3:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 64/65/68 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::4:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 92/94/96 msType escape sequence to abort.

CCNPv6 ROUTE


Sending 5, 100-byte ICMP Echos to FEC0::13:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::13:3, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 64/65/68 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0:34::21A:2FFF:FEC6:91D0, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 64/64/68 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0:34::21A:2FFF:FE7E:9648, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 96/96/96 msR1(tcl)#tclquit

R2#tclshR2(tcl)#foreach address {+>(tcl)#172.16.12.1+>(tcl)#172.16.12.2+>(tcl)#172.16.23.2+>(tcl)#172.16.23.3+>(tcl)#FEC0::1:1+>(tcl)#FEC0::3:1+>(tcl)#FEC0::4:1+>(tcl)#FEC0::13:1+>(tcl)#FEC0::13:3+>(tcl)#FEC0:34::21A:2FFF:FEC6:91D0+>(tcl)#FEC0:34::21A:2FFF:FE7E:9648+>(tcl)#} {+>(tcl)#ping $address }

Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.12.1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/31/40 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.12.2, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 56/64/72 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.23.2, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 56/57/64 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.23.3, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms% Unrecognized host or address, or protocol not running.% Unrecognized host or address, or protocol not running.% Unrecognized host or address, or protocol not running.% Unrecognized host or address, or protocol not running.% Unrecognized host or address, or protocol not running.% Unrecognized host or address, or protocol not running.% Unrecognized host or address, or protocol not running.

CCNPv6 ROUTE


R2(tcl)#tclquit

R3#tclshR3(tcl)#foreach address {+>(tcl)#172.16.12.1+>(tcl)#172.16.12.2+>(tcl)#172.16.23.2+>(tcl)#172.16.23.3+>(tcl)#FEC0::1:1+>(tcl)#FEC0::3:1+>(tcl)#FEC0::4:1+>(tcl)#FEC0::13:1+>(tcl)#FEC0::13:3+>(tcl)#FEC0:34::21A:2FFF:FEC6:91D0+>(tcl)#FEC0:34::21A:2FFF:FE7E:9648+>(tcl)#} {+>(tcl)#ping $address }Translating "172.16.12.1"

Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.12.1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 56/56/56 msTranslating "172.16.12.2"



Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.23.3, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 56/58/68 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::1:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 64/67/68 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::3:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/4 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::4:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/28 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::13:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 68/68/68 msType escape sequence to abort.

CCNPv6 ROUTE


Sending 5, 100-byte ICMP Echos to FEC0::13:3, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/4 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0:34::21A:2FFF:FEC6:91D0, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0:34::21A:2FFF:FE7E:9648, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 msR3(tcl)#tclquit

R4#tclshR4(tcl)#foreach address {+>(tcl)#172.16.12.1+>(tcl)#172.16.12.2+>(tcl)#172.16.23.2+>(tcl)#172.16.23.3+>(tcl)#FEC0::1:1+>(tcl)#FEC0::3:1+>(tcl)#FEC0::4:1+>(tcl)#FEC0::13:1+>(tcl)#FEC0::13:3+>(tcl)#FEC0:34::21A:2FFF:FEC6:91D0+>(tcl)#FEC0:34::21A:2FFF:FE7E:9648+>(tcl)#} {+>(tcl)#ping $address }Translating "172.16.12.1"% Unrecognized host or address, or protocol not running.

Translating "172.16.12.2"% Unrecognized host or address, or protocol not running.



Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::1:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 92/92/92 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::3:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::4:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::13:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 96/96/96 ms

CCNPv6 ROUTE


Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::13:3, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/28 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0:34::21A:2FFF:FEC6:91D0, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/28 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0:34::21A:2FFF:FE7E:9648, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 msR4(tcl)#tclquit

CCNPv6 ROUTE


Device Configurations – Part 1 (EIGRP and OSPFv3)

Router R1hostname R1!ipv6 unicast-routing!interface Tunnel0ipv6 address FEC0::13:1/112ipv6 ospf 1 area 0tunnel source Serial0/0/0tunnel destination 172.16.23.3tunnel mode ipv6ip!interface Loopback0ipv6 address FEC0::1:1/112ipv6 ospf 1 area 0!interface Serial0/0/0ip address 172.16.12.1 255.255.255.0clock rate 64000bandwidth 64no shutdown!router eigrp 1network 172.16.0.0no auto-summary!ipv6 router ospf 1!end

Router R2hostname R2!interface Serial0/0/0ip address 172.16.12.2 255.255.255.0bandwidth 64no shutdown!interface Serial0/0/1ip address 172.16.23.2 255.255.255.0clock rate 64000bandwidth 64no shutdown!router eigrp 1network 172.16.0.0no auto-summary!end

Router R3hostname R3

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!ipv6 unicast-routing!interface Loopback0ipv6 address FEC0::3:1/112ipv6 ospf 1 area 0!interface Tunnel0ipv6 address FEC0::13:3/112ipv6 ospf 1 area 0tunnel source Serial0/0/1tunnel destination 172.16.12.1tunnel mode ipv6ip!interface Serial0/0/1ip address 172.16.23.3 255.255.255.0bandwidth 64no shutdown!interface Serial0/1/0ipv6 address FEC0:34::/64 eui-64ipv6 ospf 1 area 0clock rate 64000bandwidth 64no shutdown!router eigrp 1network 172.16.0.0no auto-summary!ipv6 router ospf 1!end

Router R4hostname R4!ipv6 unicast-routing!interface Loopback0ipv6 address FEC0::4:1/112ipv6 ospf 1 area 0

!interface Serial0/0/0ipv6 address FEC0:34::/64 eui-64ipv6 ospf 1 area 0bandwidth 64no shutdown!ipv6 router ospf 1router-id 172.16.4.1!end

CCNPv6 ROUTE


Part 2 – IPv6 with EIGRP and RIPngThe R1 IPv4 and IPv6 routing tables and Tcl results are shown here.R1# show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.16.0.0/24 is subnetted, 2 subnetsD 172.16.23.0 [90/41024000] via 172.16.12.2, 00:02:30, Serial0/0/0C 172.16.12.0 is directly connected, Serial0/0/0

R1# show ipv6 routeIPv6 Routing Table - Default - 8 entriesCodes: C - Connected, L - Local, S - Static, U - Per-user Static route

B - BGP, M - MIPv6, R - RIP, I1 - ISIS L1I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRPEX - EIGRP externalO - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2

C FEC0::1:0/112 [0/0]via Loopback0, directly connected

L FEC0::1:1/128 [0/0]via Loopback0, receive

R FEC0::3:0/112 [120/2]via FE80::AC10:1703, Tunnel0

R FEC0::4:0/112 [120/3]via FE80::AC10:1703, Tunnel0

C FEC0::13:0/112 [0/0]via Tunnel0, directly connected

L FEC0::13:1/128 [0/0]via Tunnel0, receive

R FEC0:34::/64 [120/2]via FE80::AC10:1703, Tunnel0

L FF00::/8 [0/0]via Null0, receive

R1# tclshR1(tcl)#foreach address {+>(tcl)#172.16.12.1+>(tcl)#172.16.12.2+>(tcl)#172.16.23.2+>(tcl)#172.16.23.3+>(tcl)#FEC0::1:1+>(tcl)#FEC0::3:1+>(tcl)#FEC0::4:1+>(tcl)#FEC0::13:1+>(tcl)#FEC0::13:3+>(tcl)#FEC0:34::21B:53FF:FE0D:6028+>(tcl)#FEC0:34::21B:53FF:FE24:AA72+>(tcl)#} {+>(tcl)# ping $address }

CCNPv6 ROUTE


Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.12.1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 56/56/56 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.12.2, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.23.2, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/28 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.23.3, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 56/56/56 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::1:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/4 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::3:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 64/66/68 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::4:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 92/93/96 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::13:1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0::13:3, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 64/66/68 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0:34::21B:53FF:FE0D:6028, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 68/68/68 msType escape sequence to abort.Sending 5, 100-byte ICMP Echos to FEC0:34::21B:53FF:FE24:AA72, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 92/94/96 ms

CCNPv6 ROUTE


Device Configurations – Part 2 (EIGRP and RIPng)

Router R1hostname R1!ipv6 unicast-routing!interface Tunnel0ipv6 address FEC0::13:1/112ipv6 rip RIP1 enabletunnel source Serial0/0/0tunnel destination 172.16.23.3tunnel mode ipv6ip!interface Loopback0ipv6 address FEC0::1:1/112ipv6 rip RIP1 enable!interface Serial0/0/0ip address 172.16.12.1 255.255.255.0clock rate 64000bandwidth 64no shutdown!router eigrp 1network 172.16.0.0no auto-summary!ipv6 router rip RIP1!end

Router R2hostname R2!interface Serial0/0/0ip address 172.16.12.2 255.255.255.0bandwidth 64no shutdown!interface Serial0/0/1ip address 172.16.23.2 255.255.255.0clock rate 64000bandwidth 64no shutdown!router eigrp 1network 172.16.0.0no auto-summaryend

Router R3hostname R3!

CCNPv6 ROUTE


ipv6 unicast-routing!interface Loopback0ipv6 address FEC0::3:1/112ipv6 rip RIP1 enable!interface Tunnel0ipv6 address FEC0::13:3/112ipv6 rip RIP1 enable tunnel source Serial0/0/1tunnel destination 172.16.12.1tunnel mode ipv6ip!interface Serial0/0/1ip address 172.16.23.3 255.255.255.0bandwidth 64no shutdown!interface Serial0/1/0ipv6 address FEC0:34::/64 eui-64ipv6 rip RIP1 enableclock rate 64000bandwidth 64no shutdown!router eigrp 1network 172.16.0.0no auto-summary!ipv6 router rip RIP1!end

Router R4hostname R4!ipv6 unicast-routing!interface Loopback0ipv6 address FEC0::4:1/112ipv6 rip RIP1 enable!interface Serial0/0/0ipv6 address FEC0:34::/64 eui-64ipv6 rip RIP1 enablebandwidth 64no shutdown!ipv6 router rip RIP1!end

ipv6 challenge lab ccnp

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