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ccna cost malaysia.Seconds: The amount of time that has elapsed since the client started trying to obtain or update a lease. This value is used by busy DHCPv4 servers to prioritize replies when there are multiple client requests that have not been processed.Flag: Only the highest bit on the left of the 16 bits is used, representing the broadcast flag, called BroadcastFlagoBroadcastFlag set to 1 notifies the DHCPv4 server or relay agent receiving the Discover or Request message to send the Offer or ACK message as a broadcast. If the value is 0x000, the DHCPv4 server or relay agent sends Offeror ACK messages as unicast.Client IP address: the client puts its IPv4 address in this field if and only if the client has a valid IPv4 address and is in the bound state, otherwise the client sets this field to 0oYour IP address: The IPv4 address that the server assigns to the client.Server IP address: The server uses this address to determine the server address that the client should use in the next step of the DHCPv4 process, which may or may not be the server that sends this reply message. The sending server will always place its IPv4 address in the DHCPv4 options field called the server identifier.. Gateway IP address: When a DHCPv4 relay agent is involved. the IPv4 address of the routing DHCPv4 message is also called the Relay Agent address. Gateway addresses help transfer DHCPv4 requests and DHCPv4 answer messages between clients and servers located on different subnets or networks.. Client hardware address: the physical layer address of the client.. Server name: The server sending the DHCPv4Offer or DHCPv4ACK message can optionally place its name in this field.. Startup File Name: the client optionally uses it in a DHCPv4 Discover message to request a specific type of startup file. Servers use it in DHCPv4Offer to specify the startup file directory and file name in full..DHCP Options: Holds the DHCPv4 options, including several parameters required for basic DHCPv4 operation. the length of this field is variable. Both the client and server can use this field. For example, Option53 indicates the DHCPv4 message type, Option 150 indicates the address of the TFTP server, etc.