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Virtual APN

abrahim Diamond Medal

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An operator can deploy multiple services by using one virtual APN. A user need
only enter the virtual APN when accessing the network. The GGSN recognizes the
virtual APN and maps it to the actual APN of the user according to the related
field carried in the packets. Then, the user can access the network
corresponding to the actual APN through the GGSN. GGSN9811 mainly supports the
realization of virtual APN function by 2 ways.

Virtual APN through IMSI segment resolution. APN mapping is performed by analyzing the
IMSIs to obtain the corresponding actual APNs. When users access the GGSN, they
use a same APN. The GGSN analyzes the IMSI segments of the users to obtain the
actual APNs and provides access to the actual destination networks for the
users.
Virtual APN through MSISDN segment resolution. APN mapping is performed by analyzing
the MsISDNs to obtain the corresponding actual APNs. When users access the
GGSN, they use the same APN. The GGSN analyzes the MSISDN segments of the users
to obtain the actual APNs and provides access to the actual destination
networks for the users.

Advantage:
its very easy to realize, only need configure locally.
Disadvantage:
only support to map to a actual APN for a range of IMSI/MSISDN user, can not
support to map to a actual APN for every specific user.

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