Static and RIP routing

Task 1: Identifying the Number of Broadcast Domains

How many Broadcast Domains the above figure has? Also, circle all the Broadcast Domains you identified in the figure above.

a) 2 b) 5 c) 4 d) 6 e) other _________

Task 2: Network ID

Chosen Network ID: _______________________

Task 3: Subnetting Calculations

Step 1: Determine the total number of Host IDs needed for each broadcast domain by adding:

a) Number of PCs that need Host IDs

b) Number of router interfaces that need Host IDs

c) Number of Host IDs needed by any other devices in the broadcast domain

d) Number of Host IDs needed for Subnet Address and Broadcast Address

Step 2: Determine the highest number of total Host IDs needed among all the broadcast domains from Table 1.

______________________

Step 3: Use the highest number of total Host IDs needed from Step 2 to determine the number of bits needed to represent all the Host IDs needed [Use the table shown below].

Highest number of total Host IDs needed = ____ [from step 2]

Number of Host ID bits needed = ____

Step 4: Mark the Network ID and Host ID bits below. The unmarked bits are Subnet ID bits.

There are ___ bits allocated to Subnet ID, use the table below to find out how many subnets will be created. The number of subnets = ______ [2# of subnet id bits]

NOTE: The Subnet IDs will be numbered 0, 1, 2, 3, ….., ______ [2# of subnet id bits - 1]

Step 5: Pick Subnet IDs [any number between 0, 1, 2, 3, , ….., ____ ] that you would like to use for each of the broadcast domains and determine their binary values. Add 0s (zeroes) to the left, if necessary, to make the binary number long enough.

Step 6: We have chosen the Subnet IDs in step 5. Now we must determine the first IP address (Subnet ID), last IP address (Broadcast ID), first usable IP address, and last usable IP address for each Subnet ID.

a) First IP Address (Subnet Address):

To get the first IP address (Subnet Address),:

i) Replace the Network ID octets with Network ID chosen in Task 2

ii) Replace the Subnet ID bits with the Subnet ID chosen (in binary) for the broadcast domain in Step 5.

iii) Convert all the Host ID bits to 0.

iv) Convert all the octets to Decimal.

NOTE: You must convert the entire Octets to binary.

____ ____ ____ . ____

b) Last IP Address (Broadcast Address):

To get the last IP address (Broadcast Address):

i) Replace all the Network ID octets with Network ID chosen in Task 2

ii) Replace the Subnet ID bits with the Subnet ID chosen (in binary) for the broadcast domain in Step 5

iii) Convert all the Host ID bits to 1

iv) Convert all the octets to Decimal.

NOTE: You must convert the entire Octets to binary.

____ ____ ____ . _____

c) First Usable IP Address:

To get the First Usable IP address, increment the Last Octet of First IP address (Subnet Address) by 1.

___ . ___. ___ . ___ will be the First Usable IP address for this broadcast domain.

d) Last Usable IP Address:

To get the Last Usable IP address, decrement the Last Octet of Last IP address (Broadcast Address) by 1.

___ . ___. ___. ___ will be the Last Usable IP address for this broadcast domain.

Apply the steps above repeatedly, to calculate Subnet, First Usable, Last Usable and Broadcast Addresses for all the broadcast domains. Use the tables provided below for calculations (You may not need all the tables). Document all the calculated values in Table 2.

Subnet ID in decimal: _____ Subnet ID in binary:_____________________________

Subnet Address: ___ . ___. ___. ___

Broadcast Address: ___ . ___. ___. ___

Subnet ID in decimal: _____ Subnet ID in binary:_____________________________

Subnet Address: ___ . ___. ___. ___

Broadcast Address: ___ . ___. ___. ___

Subnet ID in decimal: _____ Subnet ID in binary:_____________________________

Subnet Address: ___ . ___. ___. ___

Broadcast Address: ___ . ___. ___. ___

Subnet ID in decimal: _____ Subnet ID in binary:_____________________________

Subnet Address: ___ . ___. ___. ___

Broadcast Address: ___ . ___. ___. ___

Subnet ID in decimal: _____ Subnet ID in binary:_____________________________

Subnet Address: ___ . ___. ___. ___

Broadcast Address: ___ . ___. ___. ___

Subnet ID in decimal: _____ Subnet ID in binary:_____________________________

Subnet Address: ___ . ___. ___. ___

Broadcast Address: ___ . ___. ___. ___

Task 4: Subnet Mask Calculations

A Subnet Mask consists of four octets (32-bit binary number just like IP address) and is used by a device to identify Subnet Address in an IP address. The rule to calculate subnet mask is as follows:

“Convert all the host id bits to 0 in the subnet mask 32-bits and the rest of the bits to 1. Convert all the octets to Decimal”.

This calculated subnet mask will be used by all the broadcast domains.

_____ . _____ . _____ . _____

Task 5: IP Addresses for Router Interfaces

Determine the IP address for all the routers interfaces and complete the following table:

Task 6: Determining IP Routes for Routers:

Fill the tables below with routes to be set on each router:

Task 7: IP Addresses for PCs in the network

Fill in the following table with IP address that will be assigned to each PC.

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