RG UP CP AAA | DHCP Discovery| | | 1|-------------->| | | | |Relay the DHCP Discovery| | | 2|-----to CP via Si------>| AAA | | | | Req/Rep | | | 3|<------------->| | | Send the DHCP Offer | | | 4|<----to UP via Si-------| | | DHCP Offer | | | 5|<--------------| | | | DHCP Request | | | 6|-------------->| | | | | Relay the DHCP Request | | | 7|-----to CP via Si------>| | | | | | | | Create Subscriber | | | | Session Request | | | 8|<--------via Ci---------| | | | Create Subscriber | | | | Session Response | | | 9|---------via Ci-------->| | | | | Accounting | | | 10|<------------->| | | Send DHCP ACK | | | 11|<----to UP via Si-------| | | | | | | DHCP ACK | | | 12|<--------------| | | | | | |