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

Question

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.

Answer 1

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