IP Allocation
This page will explain the general procedure for IP allocation during the initial attach (1st PDN setup). IP allocation can be allocated anytime after the initial attach and the additional IP setting after the initial attach and IPv6 allocation will be described in separate page.
IP Allocation for UE
|
Direction |
Message |
Comment |
|
UE -> NW |
RRC : RRC Connection Setup Complete + NAS : Attach Request |
UE Request a PDN with specific IP type |
|
UE <- NW |
RRC : RRC Connection Reconfiguration + NAS : Attach Accept |
Network Allocate a sepcific IP to UE |
< Activate Default EPS Bearer Context Req >
IP Allocation for DNS
|
Direction |
Message |
Comment |
|
UE -> NW |
RRC : RRC Connection Setup Complete + NAS : Attach Request |
UE Request a DNS via PCO |
|
UE <- NW |
RRC : RRC Connection Reconfiguration + NAS : Attach Accept |
Network Allocate DNS IP via PCO |
< Activate Default EPS Bearer Context Req >
