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Virtual Private Networks based on VIGOR firewall

1. Khái niệm:
A virtual private network (VPN) is a technology that creates an encrypted connection over a less secure network. The benefit of using a secure VPN is it ensures the appropriate level of security to the connected systems when the underlying network infrastructure alone cannot provide it. The justification for using VPN access instead of a private network usually boils down to cost and feasibility: It is either not feasible to have a private network -- e.g., for a traveling sales rep -- or it is too costly to do so. The most common types of VPNs are remote-access VPNs and site-to-site VPNs.


2. Benefits
Organisations, enterprises using IP VPN services will save a lot of cost on connecting different branches, remote access to local networks, VoIP call with security. ADSL connection is prevalent now with low-cost, IP VPN becomes simple, efficient on ADSL internet connection. The compability of IP VPN is high because of its popularity.


3. Đặc điểm kỹ thuật:

IP VPN can be software or hardware, consists of VPN server and VPN client.

For software, most operating system is supported

For hardware : Vigor 2500 can be used as VPN Client (2 channels – allows only outgoing )

Vigor 2600 series as VPN Server and Client (8-16 channels, depends on specific models), compatible with other devices that support IP VPN like Cisco, CheckPoint, Nokia.

Connecting protocols included PPTP, IPSec, L2TP over IPSec offer encryption using those algorithms AH, ESP, DES, 3DEC, MD5 so the security level is high.


4. Đối tượng sử dụng:

Subscribers are using leased line internet, dialup, ISDN or ADSL with static or dynamic IP (use with DynDNS.


5. Model example

vps
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SmallNET Support Centre: P1611, 18T1 Lê Văn Lương, Hà Nội
Tel: (04) 62510292 | Fax : (04) 62510646
Hotline: 0913 524 230 (Mr Dương)
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Tel: (04) 6251 0292 | Fax: (04) 6251 0646
Email :Contact@smallnet.com.vn

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