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Intranet Internet Scenarios Internet MSP Encrypted IP Tunnel Airline 1 Ticketing, Baggage CN HA DM Zone VPN Conc Enterprise -Placement of mobile IP and VPN elements: Several scenarios -The scenario shown above is considered in detail. Assumptions Access to the Enterprise from the Internet is via IP Sec VPNs IP Sec may not be always used when MN is within the Enterprise network FAs may be present and the solution has to take care of this scenario NOT CONSIDERED: IP sec instead of L2 encryption (of WLANs) |