для Cisco Cisco Packet Data Gateway (PDG)

GGSN Changes in Release 17

GGSN Changes in Release 17.0 ▀

Release Change Reference, StarOS Release 17 ▄

191

Currently at the DHCP server, DHCPv6 does not provide any mechanism to correlate allocated IPv6 (/64) prefix to a
particular subscriber. This feature correlates the default prefix allocated from AAA server with the delegated prefix
allocated from external DHCPv6 server during the PDN connection setup.

New options to an existing CLI in DHCP Client Profile Configuration mode to enable GGSN to send
USER_CLASS_OPTION in DHCPv6 messages to external DHCPv6 server during delegated prefix setup.

Important:

This feature requires that a valid license key be installed. Contact your Cisco Account or Support

representative for information on how to obtain a license.

Customer Impact: This feature allows different configurations for GTP-C echoes as compared to the non-echo
messages.

Command Changes

enable

A new option

user-class-option

has been added along with some other options within it to configure whether imsi

or msisdn should be sent in the user class option.

configure

context context_name

dhcp-client-profile profile_name

enable user-class-option { imsi | msisdn }

end

Notes:



enable user-class-option imsi: This CLI triggers sending the "User_Class_Option" with UE's IMSI in the

DHCPv6 messages from PGW/GGSN to the external DHCPv6 server during DHCPv6 Prefix Setup.



enable user-class-option msisdn: This CLI triggers sending the "User_Class_Option" with UE's MSISDN in

the DHCPv6 messages from PGW/GGSN to the external DHCPv6 server during DHCPv6 Prefix Setup.

disable