CODEWITHSUNDEEP
network-programmingnetwork-protocolsdhcpbootp
ALZ
ALZ

Reputation: 1998

TransactionID field of BootP/DHCP - random generated once or every time?

I have to work with a device sending BootP request with the same TransactionID every time, since DHCP RFC says that

" xid 4 Transaction ID, a random number chosen by the client, used by the client and server to associate messages and responses between a client and a server."

Does it mean that TransactionID is generated randomly once and use it forever or it shoul be generated randomly on every BootP Request?

Upvotes: 1

Views: 2566

Answers (1)

minInTheBlack
minInTheBlack

Reputation: 1

The answer is no.

Transaction ID in DHCP packets can be changed.

You can observe it even in the pair of DHCP Discovery and Request.

Upvotes: 0

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