which port(s) is(are) assigned to dhcp course hero

by Lilian Ankunding DVM Published 2 years ago Updated 1 year ago 5 min read

What is the port number for DHCP?

DHCP Server for Switch default int e0/0 (reset the port config) hostname DHCPServer config t ip dhcp pool TESTING (name of container) network 172.16.10.0 255.255.255.0 default-router 172.16.10.1 (DHCP Server ip, must be same as the interface vlan) dns-server 8.8.8.8 int vlan 1 ip address 172.16.10.1 255.255.255.0 no shut DHCP Client interface e0/0 ip address DHCP check …

How does a DHCP client work?

10.40.111.0/24 is a subnet that uses DHCP to assign IP addresses. The switch is configured with port security enabled. Be sure to state pertinent details about the packet, such as the source MAC, source IP, destination MAC, and destination IP. 6a. [8 pts] Describe two different ways in which the Attacker may perform a DOS attack using only the ...

What is the size of the DHCP offers message?

SelectedAnswer: DHCPV6OFFER. Selected Answer : DHCPV6OFFER. Question 20 1 out of 1 points After a client has a leased IPv4 address from a DHCP server, it can be renewed prior to the lease expiration through another DHCPDISCOVER message. Selected Answer: Fals e.

What is the IPIP assigned for a client by DHCP server?

Mar 30, 2022 · All tutors are evaluated by Course Hero as an expert in their subject area. DHCP operates using four types of packets:1.Acknowledgment: tells the client that it has accepted the offered IP address.2. Discover: sent by a client when it initially connects to a network.3.Offer: sent by the DHCP server in response to a client's Discover packet.

Which port S is are assigned to DHCP?

A DHCP server listens to UDP port 67 and dynamically assigns IP addresses and other network parameters to DHCP clients. These clients will listen for responses on UDP port 68.

What are the 4 types of DHCP packets?

The complete DHCP exchange involves four types of packets: Discover, for your computer to locate the DHCP server; Offer, for the server to offer an IP address; Request, for your computer to ask for an of- fered address; and Ack, for the server to grant the address lease.

What is DHCP NAK?

The NACK message is sent to a client to indicate that the IP address that the client has requested cannot be provided by the DHCP server. This situation can occur when a client requests an invalid or duplicate address for the network. If a client receives a negative acknowledgment, the lease renewal fails.Apr 3, 2022

What is DHCP in networking GeeksforGeeks?

Dynamic Host Configuration Protocol (DHCP) - GeeksforGeeks. Courses. For Working Professionals.Jan 27, 2022

Why does DHCP use 2 ports?

The use of an well known port (in our case 68) prevents the use of the same two destination port numbers and hence it prohibits other protocols from using the same port which is already in use by another protocol. In simple words, it prevents an application from getting a message from a completely different protocol.Jun 14, 2015

What is the use of apipa?

Automatic Private IP Addressing (APIPA) is a feature of Windows-based operating systems (included in Windows 98, ME, 2000, and XP) that enables a computer to automatically assign itself an IP address when there is no Dynamic Host Configuration Protocol (DHCP) server available to perform that function.

What is DHCP packet format?

The DHCP employs a connectionless service model, using the User Datagram Protocol (UDP). It is implemented with two UDP port numbers for its operations which are the same as for the bootstrap protocol (BOOTP). UDP port number 67 is the destination port of a server, and UDP port number 68 is used by the client.

What are the five DHCP messages?

DHCP Messages, DHCPDiscover, DHCPOffer, DHCPRequest, DHCPAcknowledgment, DHCPNak, DHCPDecline, DHCPRelease, DHCPInform. Following are the important messages exchanged between a Dynamic Host Configuration Protocol (DHCP) client and a DHCP Server.

What is DHCP discovery?

The DHCPDISCOVER message contains an identifier unique to the client (typically the MAC address). The message might also contain other requests, such as requested options (for example, subnet mask, domain name server, domain name, or static route). The message is sent out as a broadcast.

How IP is assigned in a DHCP protocol?

The server replies to the client with a DHCP offer packet containing an IP address. The client receives and validates the offer, then sends a request packet back to the server to accept the address. The server sends an acknowledgement packet back to the client to confirm the chosen IP address.

Where is DHCP located?

DHCP Server Location

On home networks the DHCP server is on the home router or home hub. Most home routers will have the DHCP server enabled by default (turned on). However you can use another computer e.g raspberry pi as a DHCP server, but it is generally not done.Feb 14, 2022

How do I find the DHCP assigned IP address?

To obtain a DHCP-assigned address:

Type ipconfig /renew and press Enter to obtain a DHCP-assigned IP address. Use ipconfig /all to display all IP configuration information.Mar 17, 2022

What is DHCP port number?

DHCP is based on a client-server model and based on discovery, offer, request, and ACK. DHCP port number for server is 67 and for the client is 68. It is a Client server protocol which uses UDP services. IP address is assigned from a pool of addresses.

What are the advantages of DHCP?

Advantages – The advantages of using DHCP include: 1 centralized management of IP addresses 2 ease of adding new clients to a network 3 reuse of IP addresses reducing the total number of IP addresses that are required 4 simple reconfiguration of the IP address space on the DHCP server without needing to reconfigure each client