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TM129: Networking > Module 9: Dynamic Addressing with DHCP > Flashcards

Module 9: Dynamic Addressing with DHCP Flashcards

1
Q

this is a list of addresses that it may hand out to hosts

A

what are the

pool / range of addresses

held by a

Dynamic Host Configuration Protocol (DHCP) server

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2
Q

describe the IP and MAC addressing during a

DHCPDISCOVER

A

the addressing at this point would be:

Source IP: 0.0.0.0

Destination IP: 255.255.255.255

Source MAC: DHCP Client Machine MAC Address

Destination MAC: FF:FF:FF:FF:FF:FF

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3
Q

the addressing at this point would be

(hint: this is the first message sent by the DHCP server):

Source IP: DHCP Server IP Address

Destination IP: 255.255.255.255

Source MAC: DHCP Server Machine MAC Address

Destination MAC: DHCP client MAC Address

note

the message is broadcast at network layer only

A

describe the IP and MAC addressing during a

DHCPOFFER

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4
Q

what are the 4 steps involved in a

host obtaining and configuring an IP address from a DHCP server

and what is the accronym

A

the steps involved in this are:

  1. DHCPDISCOVER D
  2. DHCPOFFER O
  3. DHCPREQUEST R
  4. DHCPACK A

this can be remembered by using the accronym

DORA

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5
Q

no a Dynamic Host Configuration Protocol (DHCP) server server does not necessarily have to be on the same network as the host. However, the router of the hosts network must be configured to forward DHCP messages

A

does a host have to be on the same network as a

Dynamic Host Configuration Protocol (DHCP) server

in order to aquire an IP address from it

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6
Q

what is a

Dynamic Host Configuration Protocol (DHCP) server

used for

A

this is used on a network so that hosts may obtain an IP address from it automatically

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7
Q

describe what takes place during the

DHCPREQUEST

A

during this stage the host sends a message back to the DHCP server telling it that it is happy with the configuration and would like to set them

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8
Q

at this stage the addressing would be:

Source IP: 0.0.0.0

Destination IP: 255.255.255.255

Source MAC: DHCP Client Machine MAC Address

Destination MAC: DHCP Server MAC Address

A

describe the IP and MAC addressing during a

DHCPREQUEST

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9
Q

describe the IP and MAC addressing during a

DHCPOFFER

A

the addressing at this point would be

(hint: this is the first message sent by the DHCP server):

Source IP: DHCP Server IP Address

Destination IP: 255.255.255.255

Source MAC: DHCP Server Machine MAC Address

Destination MAC: DHCP client MAC Address

note

the message is broadcast at network layer only

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10
Q

this is a broadcast message sent by a host requiring an IP address

A

describe what takes place during a

DHCPDISCOVER

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11
Q

at this stage the DHCP server will be responding to the clients DHCPREQUEST

it is a confirmation message saying that ok i will add you to my list and you can go ahead and set the configuartions i sent you already

once this message has been sent the client will configure its IP settings and the DHCP server will make a note of the client

A

describe what happens during a

DHCPACK

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12
Q

describe what takes place during a

DHCPDISCOVER

A

this is a broadcast message sent by a host requiring an IP address

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13
Q

this takes place after a DHCP server has received a DHCPREQUEST

it will then process the request and send a message back to the client containing IP configuartions

A

describe what takes place during a

DHCPOFFER

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14
Q

the steps involved in this are:

  1. DHCPDISCOVER D
  2. DHCPOFFER O
  3. DHCPREQUEST R
  4. DHCPACK A

this can be remembered by using the accronym

DORA

A

what are the 4 steps involved in a

host obtaining and configuring an IP address from a DHCP server

and what is the accronym

How well did you know this?
1
Not at all
2
3
4
5
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15
Q

describe what takes place during a

DHCPOFFER

A

this takes place after a DHCP server has received a DHCPREQUEST

it will then process the request and send a message back to the client containing IP configuartions

How well did you know this?
1
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2
3
4
5
Perfectly
16
Q

describe what happens during a

DHCPACK

A

at this stage the DHCP server will be responding to the clients DHCPREQUEST

it is a confirmation message saying that ok i will add you to my list and you can go ahead and set the configuartions i sent you already

once this message has been sent the client will configure its IP settings and the DHCP server will make a note of the client

17
Q

does a host have to be on the same network as a

Dynamic Host Configuration Protocol (DHCP) server

in order to aquire an IP address from it

A

no a Dynamic Host Configuration Protocol (DHCP) server server does not necessarily have to be on the same network as the host. However, the router of the hosts network must be configured to forward DHCP messages

18
Q

the addressing at this point would be:

Source IP: 0.0.0.0

Destination IP: 255.255.255.255

Source MAC: DHCP Client Machine MAC Address

Destination MAC: FF:FF:FF:FF:FF:FF

A

describe the IP and MAC addressing during a

DHCPDISCOVER

19
Q

this is used on a network so that hosts may obtain an IP address from it automatically

A

what is a

Dynamic Host Configuration Protocol (DHCP) server

used for

20
Q

describe the IP and MAC addressing during a

DHCPACK

A

at this point the addressing will be:

(hint: this is the second message sent by the DHCP server)

Source IP: DHCP Server IP Address

Destination IP: 255.255.255.255

Source MAC: DHCP Server Machine MAC Address

Destination MAC: DHCP client MAC Address

21
Q

what are the

pool / range of addresses

held by a

Dynamic Host Configuration Protocol (DHCP) server

A

this is a list of addresses that it may hand out to hosts

22
Q

at this point the addressing will be:

(hint: this is the second message sent by the DHCP server)

Source IP: DHCP Server IP Address

Destination IP: 255.255.255.255

Source MAC: DHCP Server Machine MAC Address

Destination MAC: DHCP client MAC Address

A

describe the IP and MAC addressing during a

DHCPACK

23
Q

describe the IP and MAC addressing during a

DHCPREQUEST

A

at this stage the addressing would be:

Source IP: 0.0.0.0

Destination IP: 255.255.255.255

Source MAC: DHCP Client Machine MAC Address

Destination MAC: DHCP Server MAC Address

24
Q

during this stage the host sends a message back to the DHCP server telling it that it is happy with the configuration and would like to set them

A

describe what takes place during the

DHCPREQUEST

TM129: Networking (19 decks)

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