Benefits of DHCP for IP assignment and other information it can be used for

This document discusses the benefits of using DHCP for device IP assignment and other information it can be used for. It also explains the use of zones in DNS domain management and the reasons for moving from classful addressing to CIDR. Additionally, it provides a table for subnetting an allocated network of 172.16.200.0/25. The document concludes with a reflection exercise summarizing what has been learned from the first three modules and identifying concepts that are not fully understood.

Running head: NETWORKING TECHNOLOGY
Networking Technology
Name of the Student
Name of the University
Author Note:

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Q1. What are the benefits of using DHCP to manage device IP assignment? What
information other than IP assignment can DHCP be used for?
The benefits of using DHCP to manage device IP assignment provides support for
automatically supplying the IP addresses. The other benefit is the professional configuration
procedure which is followed by DHCP (Menth et al., 2017). The automatic updating of the client
configuration is the other advantage of using DHCP to manage device IP management. Subnet
masking, DNS and default gateway are automatically configured in the DHCP server are also
considered as the benefit of using the DHCP.
Figure 1: DHCP Relay
(Source: Created by the author)
The information other than IP assignment for which DHCP is the creation of the custom
configuration. The DHCP store can be also used for storing information related to custom
configurations. The DHCO servers are also very much useful while responding to the clients of

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BOOTP as well as DHCP. The client requests are processed by the DHCP servers using the
technique of multithreading.
Q2. Explain the use of zones in the management of a DNS domain?
The use of the zones can be very much beneficial for the management of a DNS domain.
There are different types of zones such as the primary zone, secondary zone, active directory
integrated zones, reverse lookup zones and stub zones. The explanation of each of the zones will
be discussed below.
Primary Zone
The primary zone is the master zone which contains the read or right copy of the zone
data. There is only one primary zone on one DNS server (Malgosa et al., 2017). The DNS
records are added manually in the master zone of the DNS server.
Secondary Zone
The secondary zone is the slave zone which contains the copies of the files which are
present in the primary zones.
Active directory integrated zones
This type of zone plays a very important role in the management of a DNS such as the
detection of a single point of failure and fault tolerance. This zone helps in eliminating the need
for configuring DNS and active directory separately (Hossain et al., 2016). Securing the dynamic
updates are the other major function of this zone.

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Reverse lookup zones
The reverse lookup zones are very much used to look after the queries considering the IP
address which corresponds to the DNS. It returns the qualified DNS of a host based on its IP
address.
Stub Zones
The prime functionality of this zone is to validate the authorization process of the parent
zone DNS server which helps them to automatically receive an update to the child zones.
Q3. CIDR (Classes inter-domain Routing) has replaced classful IP allocation. Briefly
explain the reasons for moving from classful addressing to CIDR?
The reasons behind moving from classful addressing to CIDR are discussed below. The
classes inter-domain routing addressing space allocation in a better way as compared with the
classful addressing. CIDR also helps in eliminating class imbalances. The routing entries are
done in a more efficient manner using the CIDR. The subnetting of classful is much more
complicated than CIDR whereas there is no concept of subnetting in the CIDR.
Q4. Given an allocated network of 172.16.200.0/25, subnet to provide four networks. Create
a table giving subnet, first host, last host, broadcast addresses and subnetwork mask for
each of the four networks?
The table describing the name of the subnet, first host name, last hostname and the
broadcast address will be presented below. Assuming that there are about 27 users for each of the
four networks.
Subnet Needed Allocated Address Mask Dec Mask Assignable Broadcast

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Name Size Size Range
A 27 30 172.16.200.0 /27 255.255.255.224
172.16.200.1 -
172.16.200.30
172.16.200.31
B 27 30 172.16.200.32 /27 255.255.255.224
172.16.200.33 -
172.16.200.62
172.16.200.63
C 27 30 172.16.200.64 /27 255.255.255.224
172.16.200.65 -
172.16.200.94
172.16.200.95
D 27 30 172.16.200.96 /27 255.255.255.224
172.16.200.97 -
172.16.200.126
172.16.200.127
Table 1: Networking table for an allocated network of 172.16.200.0/25
(Source: Created by the author)
Q5. Reflection exercise
a. Write a paragraph that summarizes what you have learned from the first three modules
The first three modules help in understanding the protocols which are required in
networking. The benefits of DHCP protocol used by the ISP for dynamically assigning IP
addresses every time the router is restarted can be summarized from the above unit. The multiple
zones in the management of a DNS domain can be also summarized from the first three modules
such as the secondary zone, primary zone, stub zones, reverse lookup zones, and active directory
integrated zones. The effectiveness of the use of the classless inter-domain routing over the
classful addressing can be also summarized such as better addressing of the issue of space
allocation, elimination of class imbalances, efficient routing techniques. Thus the first three
modules of was very much helpful to determine few networking concepts.

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b. Briefly describe what concepts from these modules you don't yet fully understand
Even after discussing the different types of zones which are beneficial for the
management of a DNS system it can be said that there are few areas which are not fully covered
up especially the usability of the DNS components such as the authoritative name servers. The
physical separation of the DNS zones was not discussed in the paper which could have improved
the readability and transparency of the paper. The role of the domain server was also not
discussed in the paper as it could have been useful to understand the complexities of the
subdomains.
Apart from understanding the benefits of DHCP, it can be said there are other advantages
of DHCP which were not fully presented in the paper which is the main reason behind the
understanding the overall effectiveness for the management of a DNS domain. Reasons behind
moving from classful addressing to CIDR were not very much clear even after what was
discussed in the paper. The size and the allocation of the subnets were not discussed in the
network allocation table which is the main reason for misunderstanding the calculations as well.

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Reference
Hossain, M. A., Podder, D., Jahan, S., & Hussain, M. (2016). Performance Analysis of Three
Transition Mechanisms between IPv6 Network and IPv4 Network: Dual Stack,
Tunneling and Translation. International Journal of Computer, 20(1), 217-228.
Malgosa, J., Flores, A., Munoz, J. P., & Manzanares, P. (2017, August). Solving IP exhaustion
with maskless inter-domain routing (MIDR) scheme. In 2017 Sixth International
Conference on Future Generation Communication Technologies (FGCT) (pp. 1-5). IEEE.
Menth, M., Schmidt, M., Reutter, D., Finze, R., Neuner, S., & Kleefass, T. (2017). Resilient
Integration of Distributed High-Performance Zones into the BelWue Network Using
OpenFlow. IEEE Communications Magazine, 55(4), 94-99.