Lancom 3550 Wireless User Manual page 45

connection can be established when using the main mode, adjust the
method in the VPN connection list to "aggressive mode" in the appropri-
ate profiles at both ends.
To do this in LANconfig , go to the 'VPN' configuration area on the 'Gen-
eral' tab and select the relevant connection from the 'Connection list'.
First set the dynamic VPN option to 'No dynamic VPN'
vate 'Aggressive Mode'
In LANconfig,you then enter unique identities (e.g. unambiguous e-mail
addresses) for the relevant connection in the configuration area 'VPN', tab
'IKE parameters', in the list for 'IKE key'
The settings for the aggressive mode must agree for all of the identi-

ties at both ends of the connection!
The provider assigns a dynamic IP address to the UMTS card when it logs
in to the mobile telephone network. Be aware of the corresponding set-
tings when carrying out the configuration with the Setup Wizard.
Since the UMTS card has a dynamic IP address but cannot be identified
e.g. with an ISDN call (Dynamic VPN), the VPN connection must always be
established from the VPN gateway with the UMTS card in the direction of
the VPN gateway at the headquarters.
LANCOM 3550 Wireless
Chapter 5: Setting up the UMTS profile
as the IKE exchange mode.
and then acti-
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