Nokia 9290 Setting up Dial-in Service - Page 9

Nokia Mobile Phones Nokia 9290 Communicator Setting Up Dial-In Service 9 (11) The Nokia 9290 Communicator contains some factory-installed root certificates of popular certification authorities and Nokia itself. You may wish to get your server certificate from one of these certification authorities, or you can install a new root certificate to the communicators. Users can freely delete certificates from the device. The certificate store is contained in ROM and removing the certificate database will revert to factory configuration. Installation of new certificates is done using a DER encoded (binary) X.509 certificates (PEM or base64 encoding is not accepted). The user can view the details of a new or already installed certificate, such as the issuer name, subject name, validity period, serial number, and the fingerprint. The fingerprint can be used to verify the certificate's authenticity by out-of-band means. To find out more about certificates and how they are used in secure communications, please refer to any good textbook on the subject, for example Applied cryptography: Protocols, algorithms, and source code in C, 2nd edition by Bruce Schneier. 2.6 Tested Nokia 9290 compatible PPP access servers This section contains a list of commonly used PPP dial-in access servers which have been compatibility tested with the Nokia 9290 Communicator. Another type of PPP server may also work, assuming the server has been configured with generally used PPP settings such as: • The PPP server is capable of establishing data calls using the PSTN/ISDN V.110/ISDN V.120 method • The server is able to handle a maximum transfer unit (MTU) of at least 1500 octets • Login script authentication with terminal server or PAP/CHAP authentication with PPP server • Van Jacobson TCP/IP header compression on/off • Dynamically/manually set IP and DNS addresses • PPP compression provided by Compression Control Protocol on/off • IP packet routing gateway information is set by the PPP server The configuration options listed above may differ for your local Internet access point. Please contact your local ISP or corporate information management to get more information about used parameters for your Internet access point. Compatibility tested PPP servers: Cisco AS5300 Cisco AS5200 Shiva Access Switch Shiva LanRover E+ Microsoft NT RAS 4.0 Ericsson Tigris AXC 623 Ascend Max 4004 Lucent PortMaster 3 Copyright  Nokia Corporation 2001-2002. All rights reserved.