The African broadband operator Virtual Private Network: VPN DESCRIPTION The UDgateway®-VPN i s the first appliance specifically t ailo- A VPN can b e created o n a satellite-only infrastructure or o n a red to high-speed VPNs supplied hybrid infrastructure (i.e., combining satellite and terrestrial acces- via satellite. All key IP functionali- ses). The connections between remote sites can be based on all ties (such as addressing, routing, types of public IP networks, and more specifically on the Internet. security, caching, etc.) are Site-to-site exchanges are encrypted f or t otal security. Moreover, embedded i n the appliance, the uploading and downloading levels of performance have been along w ith performance-enhan- significantly enhan- cement t echnology. The core ced thanks to special technology, d eveloped by technologies d evelo- UDcast is based on bi-directional ped by UDcast, TCP acceleration, and the HTTP based o n end-to-end pre-fetching as well as Web the bidirectional T CP and DNS caching. Users will acceleration. Hub appreciate the significant i mpro- Afrique vement in quality. UDgateway Telecom Customer site 1 BLR or xDSL UDgateway UDgateway Customer site 2 Data server Customer headquarters The UDgateway®-VPN appliance lends itself admirably to two-way satellite systems. When located on a satellite infrastructure, it sits between the satellite terminal and the local network, and handles all the VoIP traffic coming from the company's site. When the appliance is located on a terrestrial infrastructure of a central site, it can be integrated in any network near the Internet access, generally in a De-Militarized Zone (DMZ). The appliance can be easily configured via a Web interface. A wizard automates the setup process. KEY BENEFITS Enhancement of end-to-end levels of performance Customer satisfaction guaranteed by delivering the expected level of high-speed access Bidirectional TCP acceleration and end-to-end encoding Site-to-site security Strong coding of site-to-site IP flows Complete protection of all VPNs from Internet access Management of addressing Translation of private addresses into a single public address Dynamic assignment of private IP addresses Suitable for bidirectional satellite systems Optimization of the return channel QoS based on a differentiated processing of flows www.afrique-telecom.com Virtual Private The African broadband operator Network: VPN // ENHANCED USER PERCEPTION Bidirectional TCP acceleration. - Reduction of downloading data time in both directions. - Complete use of the bandwidth. HTTP pre-fetching - Automatic pre-fetching of all objects on the same web page. - Instantaneous posting of web pages Caching - Single loading for subsequent reuse of browsed web pages. - Single resolution of a name in IP address for subsequent reuse. E-mail relays - Immediate processing of messages delivered with the SMTP relay. - Sending of messages on the return channel as a background task. Afrique Telecom partnership // SPECIFICATIONS IP functionalities - Complete IP v4 stack and IP routing - NAT with port forwarding - Kernel-based stateful inspection firewall - Two-way TCP accelerator - Compression - HTTP pre-fetching with HTTP and DNS cache. - SMTP e-mail relay - DHCP Server - QoS: based on weighted fair queuing – DiffServ compliance VPN functionalities - Ipsec – ESP tunnel mode - AES 128-bit media encryption - Split tunneling VPN with direct Internet access. International Headquarters AFRIQUE TELECOM Administration functionalities 7, rue Plaine-des-Isles - Secure web-based management 89 000 AUXERRE - Configuration Management FRANCE - SetUp wizard with auto configuration - Snmp/mib support Tél.: +33 (0)18.104.22.168.40 Network interfaces Fax : +33 (0)22.214.171.124.49 - 2 Ethernet 10/100 BaseT email@example.com (1 for LAN switch and number 142-way IDU www.afrique-telecom.com or DMZ LAN).
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