IPv6 Lab

CIT 447 – IPv6 OSPF Routing Lab Overview We have been asked to design and implement and IPv6 in parallel with and existing IPv4 network using OSPF at ACME Inc. Start with your IPv4 OSPF routing lab. The specifications are shown the information on the network is shown in the topology below.

Area Number of IPv4 Hosts Number of IPv6 Hosts Notes R1/PC1 1558 2077 R2/PC2 1054 468 R3/PC3 216 173 R4/PC4 1209 437 R5/PC5 451 349 R6/PC6 245 567 R7/PC7 111 44 Pay close attention to the specified Pv6 networks for the broadcast domain, including SW1 and connecting R1, R2, R3, and R4. The internal IPv6 Prefix is FD01:FFAC:1234::/48 IPv6 OSPF Area: 10 Authentication: None Tools and Materials: 1. GNS3 Simulator 2. The base topology for this lab from Canvas. Steps 1. Use your completed topology from the last lab. 2. Create your IPv6 addressing scheme for the network. Don’t forget that the serial links will need to be a separate Subnet. Give some thought to your subnetting for the serial links, so there aren’t many wasted addresses. A serial link, since it is point to point, only needs two host addresses. a. Assign the interface on the router connected to the VPCS using the eui-64. The command is in the format ipv6 address prefix::/64 eui-64. b. Enable ip6 unicast routing using ipv6 unicast-routing command. c. The VPCS should get there own IPv6 address using NDS. Use the show ipv6 command on the VPCS to verify that the address has been assigned. d. Other than the serial links, don’t allocate less than a /64 (IPv6) to any router – VPCS network.

3. Configure the IPv6 addresses per your design. Some helpful commands for configuring IPv6 addresses. ipv6 unicast-routing int e0/0 ipv6 address 2001:FACE:1111:1::1/64 no shutdown Some helpful commands for configuring Pv6 addresses on the VPCS. A VPCS can have both an IPv6 address. ip 2001:FACE:1111:1::1/64 auto <- The auto is required to set the gateway. save NOTES: (1) In the topology all the routers interfaces connected via switch SW1 are in the same broadcast domain (i.e., network). (2) All the IPv6 addresses for the interfaces on the routers connected to these switches should have the same prefix. (3) There is no configuration needed on any of the switches. 4. Verify that network connectivity is working as expected using pings. Do IPv6 pings. a. The interfaces that at directly connected to each other should be able to ping each other regardless of whether or not routing is running. For example, PC1 should be able to ping the e1/0 interface on R1. 5. Implement IPv6 OSPF on each of the routers using area 10. Note: Use different OSPF process numbers for IPv6 and IPv4. Some helpful commands for configuring IPv6 routing. ipv6 unicast-routing ipv6 router ospf 1  this is the process number ospf router-id 1.1.1.1 passive-interface e1/0 int s2/0 ipv6 ospf 1 area 10 6. Verify that you can ping across the network using IPv6 and IPv4.

7. Answer the questions on the next page. Description Network Address Prefi x (/XXX ) Router IPv6 Address VPCS IPv6 Address R1 – VPCS1 FD01:FFAC:1234:1000:: /64 FD01:FFAC:1234:1000::1 FD01:FFAC:1234:1000:2050:79FF: FE6 R2 – VPCS2 FD01:FFAC:1234:2000:: /64 FD01:FFAC:1234:2000::1 FD01:FFAC:1234:2000:2050:79FF: FE6 R3 – VPCS3 FD01:FFAC:1234:3000:: /64 FD01:FFAC:1234:3000::1 FD01:FFAC:1234:3000:2050:79FF: FE6 R4 – VPCS4 FD01:FFAC:1234:4000:: /64 FD01:FFAC:1234:4000::1 FD01:FFAC:1234:4000:2050:79FF: FE6 R5 – VPCS5 FD01:FFAC:1234:5000:: /64 FD01:FFAC:1234:5000::1 FD01:FFAC:1234:5000:2050:79FF: FE6 R6 – VPCS6 FD01:FFAC:1234:6000:: /64 FD01:FFAC:1234:6000::1 FD01:FFAC:1234:6000:2050:79FF: FE6 R7 – VPCS7 FD01:FFAC:1234:7000:: /64 FD01:FFAC:1234:7000::1 FD01:FFAC:1234:7000:2050:79FF: FE6 R1, R2, R3, R4, SW1 FD01:FFAC:1234:0001:: /64 R1: FD01:FFAC:1234:0001::1 R2: FD01:FFAC:1234:0001::2 R3: FD01:FFAC:1234:0001::3 R4: FD01:FFAC:1234:0001::4 N/A R4 – R5 FD01:FFAC:1234:0100:: /64 R4: FD01:FFAC:1234:0100::1 R5: FD01:FFAC:1234:0100::2 N/A R4 – R6 FD01:FFAC:1234:0200:: /64 R4: FD01:FFAC:1234:0200::1 R6: FD01:FFAC:1234:0200::2 N/A R5 – R7 FD01:FFAC:1234:0300:: /64 R5: FD01:FFAC:1234:0300::1 R7: FD01:FFAC:1234:0300::2 N/A

FD01:FFAC:1234:0400::2 via s2/1 i. How many possible routes are there? (5 points)

2 5. In your configuration, which interfaces did you make passive? List the router and interfaces on that router. (5 points) R1 – e1/0 R2 – e1/0 R3 – e1/0 R4 – e0/0 R5 – e1/0 R6 – e1/0 R7 – e1/0 a. Why? (5 points) Because those interfaces did not have other routers connected and It tells the router to ignore any hello messages received on that interface. 6. From VPCS PC7 perform a traceroute to VPCS PC1 trace ipv6_addr a. What path did it take? (5 points) FD01:FFAC:1234:7000::1  FD01:FFAC:1234:300::1  FD01:FFAC:1234:100::1  FD01:FFAC:1234:1::1  FD01:FFAC:1234:1000::2050:79FF:FE66:6800 b. Is this the path expected? (5 points) It is the shortest route from the host to its destination. 7. List the OSPF neighbors on R4. a. IPv6 neighbors (5 points) Neighbor ID: 172.16.34.1 172.16.32.1