The ISP links:

The ISP has allocated one of the following public IPv$4$ address spaces for your group. A $\text{'}\frac{?}{30}$

address space' will be used for each of the two ISP links. The remainder addresses will be used for

NAT $($see Task Four$)$:

Group A $($or $1)$: $209\mathrm{.}165\mathrm{.}199\mathrm{.}64/29$

Group B $($or $2)$: $209\mathrm{.}165\mathrm{.}199\mathrm{.}72/29$

Group C $($or $3)$: $209\mathrm{.}165\mathrm{.}199\mathrm{.}80/29$

Group D $($or $4)$: $209\mathrm{.}165\mathrm{.}199\mathrm{.}88/29$

Group E $($or $5)$: $209\mathrm{.}165\mathrm{.}199\mathrm{.}96/29$

Group F $($or $6)$: $209\mathrm{.}165\mathrm{.}199\mathrm{.}104/29$

The Internal Network:

As part of the network redesign, the AIT has allocated one of the following private address spaces

for your group for addressing the internal network:

Group A $($or $1)$: $10\mathrm{.}0.\frac{0\mathrm{.}0}{20}$

Group B $($or $2)$: $10\mathrm{.}0\mathrm{.}16\mathrm{.}0/20$

Group C $($or $3)$: $10\mathrm{.}0\mathrm{.}32\mathrm{.}0/20$

Group D $($or $4)$: $10\mathrm{.}0\mathrm{.}48\mathrm{.}0/20$

Group E $($or $5)$: $10\mathrm{.}0\mathrm{.}64\mathrm{.}0/20$

Group F $($or $6)$: $10\mathrm{.}0.\frac{80\mathrm{.}0}{20}$

The expected numbers of users for each of the user groups are:

For the West switching network $($this will be implemented in VLANs$)$:

$1000$ hosts for Students

$300$ hosts for Staff

On the Main site:

$20$ hosts on the Server Farm LAN.

On the Branch site:

$250$ hosts in Students $($as shown in Appendix: Partial Topology Diagram$)$

$500$ hosts in a spare LAN

The AIT requires that:

The use of VLSM design to maximise the use of IPv$4$ addresses.

All networking devices $($including switch SVIs$)$ must have IPv$4$ addresses and the PC hosts'

gateways will use the first usable address$($es$)$ in their subnet.

Each of the ISP links will be allocated a subnet mask of $/30.$

The Management VLAN for the switching networks will have an extra host $($referred to as the

"Network Admin Host" as shown in the Topology Diagram$)$ for network administration usage.

At this stage, AIT agrees that it is sufficient to assign all hosts with an IPv$4$ address statically.

Milestone Submission: Tables A$,$ B and C

IPv$4$ Network subnetting Table A$,$ which shows possible subnets that meet the design

requirements; Subnets that are not used are to be clearly identified in each table $(\text{'}$not in use'$).$

Detailed IPv$4$ addressing tables $($Tables B and C$)$ showing all networking devices' names and

their interface details. Note that, the gateways of the VLANs will be implemented as sub$-$

interfaces, e$.$g$.,$ Fa$0/0\mathrm{.}10$ as the gateway of VLAN$10.$

Discussion Questions: Consider how you do subnetting so as to meet each of the requirements.