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Integrator’s Reference Manual
5-24 80-99208-1 Rev. D
(see Dormant Mode Service on page 5-25), the IP address
assigned during this session remains active even during
temporary gaps in air link coverage or when a call is
temporarily released via dormant mode.
Fixed IP Addressing
Fixed IP addresses can be assigned instead of dynamic IP
addresses. With a fixed IP address, the server or host
application can use a given specific IP address that is
permanently assigned to the modem.
Note
In the first Gateway software release that supports modems, fixed IP
addressing requires that private IP addresses be “decoded” from the
modem’s IMSI (International Mobile Subscriber Identity). This precludes
the use of fixed IP addressing with roaming between Gateways.
Finding IP Addresses
If you need more information about your IP addresses, ask
your Service Provider.
Virtual Private Network Service
Since a fixed IP addressing scheme requires the use of private
IP addresses, a virtual private network (VPN; e.g., IPSec) or
an IP-in-IP tunnel would have to be established between the
host and the Globalstar Gateway, so the host can initiate IP
sessions with the remote/SCADA unit.
Contact your network provider for help in establishing a VPN
or dedicated line between your host server and the Gateway.
When using dynamic IP addressing, an end-to-end VPN
connection can be established between the remote/SCADA
unit and the host/server.