Assignment 2

Topics: IP address, Routing, Router Pages: 6 (1210 words) Published: June 8, 2014
Distance Vector Routing Protocols

1What does RIP stand for?Routing Information Protocol
2What metric does RIP use for Path Selection?Hop count

3If the metric used by RIP exceeds this value for a route it is considered unreachable, effectively making this value appear to be infinity to RIP? 15
4How often does RIP send updates by default (update timer)? 30 seconds
5What are the main differences between RIPv1 and RIPv2?RIPv2 has next hop addressed included in the routing updates, use of multicases addresses in sending updates. 6What is convergence and why is it important?Convergence is when the routing tables of all routers are at a state of consistency. A network is not operable until the network has converged 7Is RIP considered to be a fast or slow converging protocol?Slow converging protocol

For the simple 3 router network (Figure 1), fill in the information that would be in each router’s routing table once the network has converged (see example in Chapter 4, pages 192-193).

Figure 1

Questions 8-22 (15 points – first one provided)

Subnetting and Assigning Addresses

Figure 2. Addressing Design Scenario

You are the network administration for the small network in Figure 2. It consists of your headquarters location with a LAN with 60 hosts, remote office R1 with 10 hosts, and remote office R2 with 30 hosts. You have been assigned the address space From this space you will need to create the subnets for each of the sites on your network and the two WAN links. Once you find the subnets assign addresses to the Routers interfaces and PCs using the following guidelines: Assign the first address from LAN subnets to the router interface connected to that LAN. Assign the second IP address in the LAN subnet to the PC on the LAN. Assign the first Address from WAN subnets to the HQ router end of the WAN link and the second address to the remote router interface. Use the steps below to help you work through it.

Create the subnets:
Address space:

Write it out in binary form identifying the host and network then use the space below in table as a scratch pad to help you in subnetting as needed. Remember to be efficient you usually want to start by creating the largest subnet you need first and then continue subnetting to find the smaller subnets in succession.  

The following scratchpad can be used to show work (for partial credit) in completing the subnet table below. Network bits Host bits

Subnet Table
23What is the HQ subnet (address/mask)?
24What is the R1 subnet (address/mask)?
25What is the R2 subnet (address/mask)?
26What is the subnet for the HQ to R1 WAN (address/mask)? 27What is the subnet for the HQ to R2 WAN (address/mask)?

Fill in the address and subnet mask for the device interfaces in the table below using the assignment rules described above.

HQ RouterFa0/028192.163.3.13926
R1 RouterFa0/031192.163.3.654227
R2 RouterFa0/134192.163.3.974427

What subnets do you have left available for future use?
PC’s on a LAN need to have a default gateway configured that identifies the next hop IP...
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