The aim of this assignment is that you use and understand the operation of OSPF in a simple network. Marks are awarded for initial configuration of the network, but most marks are awarded for the use of the routers to answer questions about the network's operation.
The Juniper laboratory has been divided into two sides - Network A and Network B. You have been assigned to use one of these sides. Each side contains three routers you must use, and is connected to a further router that acts as an ISP
The routers in network A are named juniper-1, juniper-2 and juniper-3. The routers in side B are named juniper-4, juniper-5 and juniper-6. To log into router juniper-n from portal, use the command minicom router-n where n is between 1 and 6.
You must configure your three routers so that they form area 0 of an OSPF network. To do this you must first assign IP addresses from the Internal Network Address range you have been assigned and descriptions to interfaces ge-0/0/0.0 and ge-0/0/1.0 on each of your routers.
Lab network diagrams may be found here
On each interface you configure you must assign an address and netmask which correspond to the address and netmask already assigned in each case to the other end of that link. On the link between ge-0/0/1.0 on each router, you must choose appropriate addresses and netmasks for a point-to-point link.
You must then configure OSPF area zero to contain both interfaces.
One of the routers in each side is connected to an ISP router. You should configure interface ge-0/0/2 on this router with the External IP address you have been assigned. Add a static default route with the ISP router address.
Then you need to use policy statements to import the default route into the OSPF database and ensure that it is distributed via OSPF to the other routers.
You have been assigned to use sides of the lab as listed below. You should not have access to routers other than the two in the side you have been assigned.
| Student ID. | Internal Net Range. | Gateway IP Address. | Reserved Date. |
|---|---|---|---|
| 1032681 | 192.168.1.0/24 | 192.168.32.1 | 11 May |
| 1032708 | 192.168.2.0/24 | 192.168.32.2 | 12 May |
| 1046585 | 192.168.3.0/24 | 192.168.32.3 | 13 May |
| 1028323 | 192.168.4.0/24 | 192.168.32.4 | 14 May |
| 1036258 | 192.168.5.0/24 | 192.168.32.5 | 15 May |
| 1055737 | 192.168.6.0/24 | 192.168.32.6 | 18 May |
| 1049481 | 192.168.7.0/24 | 192.168.32.7 | 19 May |
| Student ID. | Internal Net Range. | Gateway IP Address. | Reserved Date. |
|---|---|---|---|
| 1033491 | 192.168.8.0/24 | 192.168.32.8 | 11 May |
| 1059536 | 192.168.9.0/24 | 192.168.32.9 | 12 May |
| 1046563 | 192.168.10.0/24 | 192.168.32.10 | 13 May |
| 1056985 | 192.168.11.0/24 | 192.168.32.11 | 14 May |
| 1067131 | 192.168.12.0/24 | 192.168.32.12 | 15 May |
| 1049066 | 192.168.13.0/24 | 192.168.32.13 | 18 May |
| 1046593 | 192.168.14.0/24 | 192.168.32.14 | 19 May |
Use of the lab is "first come, first served" on dates not listed above.
The primary focus of this assignment is on examination of a network using OSPF. Demonstrate the answer to each of the following questions using output from at least one of the routers you have configured.
One of the links in your network is constrained to 10Mbps by passing through a hub. Show what effect this has on the routes between the two routers connected by this link. Use Ping and Traceroute commands to show the changes in routes when one of the other links is down. (use set interface interface-name disable to disable and interface and delete interface interface-name disable to bring it up. Remember to commit each time.)
Your assignment must be submitted in electronic form using Moodle. Do not submit anything physical. You may submit either a single file or an archive (e.g. made using tar) containing multiple files.
Your submission must include full router configurations for all routers configured, and the answers to the questions above illustrated by reference to output from the routers. To repeat, you must in each case demonstrate using router output that an answer is true. Marks will not be given for answers without demonstration.
Late submissions will not be graded without a mitigating Doctor's certificate. If you know ahead of time that you will not be able to meet the deadline, pelase see me as soon as possible so that other arrangements may be made. The day before may not count as "ahead of time". If you are not able to provide complete answers, submit what you do have. Some marks are better than no marks.
