The ISP links: Fig. $1.$ Basic network topology

The ISP has allocated one of the following public IPv$4$ address spaces for your group. A $/30$

address space$$ will be used for each of the two ISP links:

$209\mathrm{.}165\mathrm{.}199\mathrm{.}112/29$

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 $172\mathrm{.}17\mathrm{.}112\mathrm{.}0/21$

Sample Partial Tables:

Table A $-$ IPv$4$ Subnetting Table

$*"$Subnet Number" is the index $($starting from $0)$ of the subnet as the result of subnetting.

Table B Device Interface IP Addressing Table

Table C Host Addressing Table

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

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

$500$ hosts for Students

$120$ hosts for Staff

On the Main site:

$10$ hosts on the Server Farm LAN.

On the Branch site:

$200$ hosts in Students $($as shown in Appendix: Partial Topology Diagram$)$

$300$ 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

$1)$ 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 $($not in use$).$

$2)$ 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 subinterfaces, e$.$g$.,$ Fa$0/0\mathrm{.}10$ as the gateway of VLAN$10.$