Term
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Definition
Tells what type of DHCP packet
it is. It is either a "request" or
it is a "reply". |
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Term
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Definition
The type of hardware used for the
local network. It is usually Ethernet. |
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Term
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Definition
Because hardware type is usually
Ethernet, the length is 48 bits (6 bytes)
because it is using a MAC address |
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Term
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Definition
A count of how many relay agents
the DHCP packet is going across. |
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Term
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Definition
Used to identify a DHCP "conversation"
from other DHCP "conversations". |
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Term
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Definition
Transaction length. Also known
as how long a DHCP "conversation"
lasts. |
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Term
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Definition
DHCP is non-routable. "F" is a flag and its
best default is to set it to broadcast. |
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Term
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Definition
What IP address the client has
requested/agreed upon. |
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Term
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Definition
The IP address being sent by the server. |
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Term
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Definition
The IP address of the DHCP server. |
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Term
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Definition
Router IP address.
(in case of any relays) |
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Term
DHCP
Client Hardware Address |
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Definition
Contains the actual hardware
address (usually MAC). |
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Term
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Definition
For use with services like Boot P. |
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Term
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Definition
If present in a DHCP packet, options
are following. If not present, the entire
options field is cut off. |
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Term
DHCP
Explain the connection diagram. |
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Definition
server is passively open.
client --dhcpdiscover-> server
client <-dhcpoffer-- server
client --dhcprequest-> server
client <-dhcpack-- server
(before 50% of lease time expires)
client --dhcprequest-> server
(if the server does not respond the request is repeated)
client --dhcprequest-> server
(if the server responds with a nack, the client must start all over again)
client <-dhcpnack-- server
(if the server responds with an ack, the client has a new lease)
client <- dhcpack-- server
client --dhcprelease-> |
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Term
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Definition
Used to set the DNS domain addresses. |
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Term
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Definition
Partially Qualified Domain Name |
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Term
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Definition
Fully Qualified Domain Name
(the "." at the end of a domain name) |
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Term
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Definition
A file used to organize and reference
all the zone files being used by the DNS
server. |
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Term
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Definition
Used to retain information about
a specific domain. Contains origin, ttl,
a unique serial number, slave update
time, retry time on failed slave update,
slave expiration time, and maximum
cache time. Uses FQDN's. |
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