Cisco Cisco Packet Data Gateway (PDG)
SaMOG Gateway Overview
How the SaMOG Gateway Works ▀
SaMOG Administration Guide, StarOS Release 18 ▄
37
SaMOG Gateway IPv6 prefix Over PMIPv6 Using Stateless Address Auto-
configuration (SLAAC)
The figure below shows the message flow to delegate an IPv6 prefix to the user equipment (UE) using SLAAC for
PMIPv6 access type.The table that follows the figure describes each step in the message flow.
PMIPv6 access type.The table that follows the figure describes each step in the message flow.
Figure 7. SaMOG Gateway IPv6 prefix Over PMIPv6 Using SLAAC
Table 7. SaMOG Gateway IPv6 prefix Over PMIPv6 Using SLAAC
Step
Description
1.
SaMOG authenticates between the UE and the AAA/Radius server via. WLC.
During Authentication, SaMOG receives the PDN-Type IPv6 value as part of the APN-Profile AVP in the Diameter EAP
Answer or Access-Accept message from the AAA/Radius server.
During Authentication, SaMOG receives the PDN-Type IPv6 value as part of the APN-Profile AVP in the Diameter EAP
Answer or Access-Accept message from the AAA/Radius server.
2.
After P-GW selection, SaMOG performs S2a procedures towards P-GW by including the PDN-Type, and receives the IPv6
Prefix for the subscriber's UE using S2a procedures as per APN subscription profile at P-GW
Prefix for the subscriber's UE using S2a procedures as per APN subscription profile at P-GW
3.
SaMOG sends the Radius Access-Accept message towards WLC. SaMOG includes the PDN-Type (IPv6) in the Cisco-
AVPair attribute.
AVPair attribute.