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How many DHCP packets are exchanged between a client and a server before the client receives an IP address?

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How many DHCP packets are exchanged between a client and a server before the client receives an IP address?
posted Dec 8, 2013 by anonymous

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1 Answer

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4 DHCP packets are exchanged between the client and the server. They are DHCP Discover, DHCP Offer, DHCP Request, DHCP Ack.

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answer Dec 9, 2013 by Vikas Upadhyay
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+1 vote

Here assumption is PGW serves both the APN and UE will get IP addresses for both the default bearers using the DHCP server.
I am not sure, DHCP messages for both the PDNs will be transmitted using the first default bearer or DHCP messages for each PDN will use its associated default bearer.
Case 1 :
IP addresses for both the APN assigned by same DHCP server

Case 2:
IP address for each APN assigned by different DHCP server.

In both the cases, I want to know how PGW will deal with DHCP message and also on what basis a particular IP will be associated with a default bearer at UE if its uses same default bearer for the DHCP message exchange.

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