DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router - Overview

The DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router is a high-performance dual-WAN firewall. The two dedicated ethernet WAN ports can provide load balancing, WAN failover or bandwidth aggregation (increasing total bandwidth onto the Internet). The DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router also comes with SIP-Compliant VoIP (Voice-over-IP) and Wireless-N. High Speed total WAN througput of up to 70Mb/s is available, and IPSec VPN throughput of up to 40Mb/s. Extensive QoS support and comprehensive Web Content filtering features help you make the most efficient use of your bandwidth.

The DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router is in an all-new DrayTek housing design with all LEDs and sockets provided conveniently on the front. This makes desk usage, wall mouting or rack-mousing (optional bracket required) all equally covenient.

DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router - Wireless LAN

The DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router features the latest 802.11n Draft 2.0 wireless LAN specification and has been certified by the WiFi alliance for cross compatibility and WiFi compliance (including WPA/WPA2 and WMM).

802.11n Draft 2.0 provides a total wireless bandwidth of up to 300Mb/s using new methods such as packet aggregation and channel bonding. Throughput depends on your own environment (factors such as obstructions, number of hosts and distance all make a significant difference), but actual transfer speeds of 100Mb/s are achievable (based on our real world tests). In addition, 802.11n Draft 2.0 provides greater coverage and resilience to interference compared to previous wireless standards thanks to the MIMO technology and the DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router's triple-antennae diversity arrangement. This offset arrangement of aerials provides offset paths between hosts so that interference can be overcome.

Wireless Security is comprehensive too; the DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router provides several independent levels of security including encryption (up to WPA2), authentication (802.11x) and methods such as MAC address locking and DHCP fixing to restrict access to authorised users only. The DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router's Web interface lets you see how many and which clients are currently connected as well as their current bandwidth usage. An 'instant' block lets you disconnect a wireless user temporarily in case of query. The DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router's Wireless VLAN facility allows you to isolate wireless clients from each other or from the 'wired' LAN.

Your laptop PC's built-in wireless may not support 802.11n Draft 2.0 wireless, in which case you will need to add a new wireless LAN interface such as the DrayTek N61 USB adaptor.

For specialist coverage applications, optional aerials can be used with the DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router to potentially increase the range of wireless coverage (depending on enviroment) or provide directional coverage in order that your wireless transmission is focussed and concentrated into one direction only, for example into a room or across open space.

• 802.11n Compliant (Draft 2.0)
• WiFi Alliance Approved
• Latest 'MIMO' Technology with three aerials (2T3R)
• Packet Aggregation and Channel Bonding
• Optional Higher Gain or directional aerials available
• Also Compatible with 802.11b and 802.11g Standards
• Active Client list in Web Interface
• Wireless LAN Isolation (from VLAN groups and wired Ethernet interfaces)
• 64/128-bit WEP Encryption
• WPA/WPA2 Encryption
• Switchable Hidden SSID
• Restricted access list for clients (by MAC address)
• Time Scheduling (WLAN can be disabled at certain times of day)
• Access Point Discovery
• WDS (Wireless Distribution system) for WLAN Bridging (Firmware Upgradable, ETA March 2008)
• 802.1x Radius Authentication
• Wireless Rate-Control
• Automatic Power Management
• 802.11e WMM (Wi-Fi Multimedia)

Important Note : Wireless performance (speed and range) always depends on your specific environment and will vary considerably. Factors affecting performance include wireless traffic, other networks nearby, site construction, walls, ceilings and other electronic equipment nearby. The product may not be upgradable to future 802.11n Draft standards or be compatible with products from other manufacturers. Speeds quoted are the maximum wireless capacity, including RX/TX capacity, protocol overheads and all clients/hosts connected.

SSL VPN

SSL VPNs

VPNs (Virtual Private Networks) enable you to link two remote computers or networks securely using the public Internet. An encrypted tunnel is created to carry your private data between the two sites. Tunnels making use of PPTP, L2TP, AES and IPSec protocols have been available on Vigor routers for many years and provide a simple to set up solution for your site-to-site or teleworker VPNs. SSL VPNs provide a new method for teleworker to central site VPN, providing great convenience, low TCO and simplicity where other methods may not be possible.

The benefits of SSL VPNs

One potential drawback of using the above methods for a Teleworker-to-central site VPN is that they need compatiable protocol stacks at each end (e.g. an IPSec client or hardware) and most importantly those protocols need to be freely passed by your local host network. This isn't normally a problem where you own the computers and the network in use and you can install any client, software or hardware you choose, as well as allowing any traffic types you like. Where it can become a problem is where you are using someone else's computer or network where either you cannot use the O/S VPN client, or the host network blocks VPN protocols or makes them unreliable. This is most commonly a problem when using WiFi hotspots or other public Internet access methods (hotels, conference centres etc.).

You may already have heard of SSL previously, and you have almost certainly used it. SSL (Secure Sockets Layer) is the protocol used by all web browsers for accessing 'secure' web sites. You will have used secure web sites whenver you have used your credit card online or accessed your banking web sites, for example. SSL is supported by all web browsers, and as it is so commonly used, all hotspots and other public Internet will always allow SSL to pass properly. By using the SSL protocol for your telework VPN tunnel you therefore have some important benefits:

Traditional VPN (e.g. AES/IPSec	SSL VPN
Requires VPN Client or Hardware	Uses Standard Web Browser SSL
Support for popular O/S's only	Compatible with all computers/browsers
Licence fees all for some vendor client software (Not DrayTek though!)	No client licence fees
Requires user to operate VPN Client	No special operator procedures. Just use your web browser.
At OSI 'network' layer	At OSI 'session' layer
AES/DES/3DES Encryption	SSL Encryption
Full network access (unless filtered)	Ability to easily restrict users to specific web applications
Network Level Access as standard.	Network level access via DrayTel Active-X SSL Tunnel Plug-in
Teleworker or Site-to-Site (LAN-to-LAN)	Teleworker-to-Host site only

Another advantage of web based SSL VPN is that your host Vigor router presents the user with his/her login page to the network within their browser and then can provide access only to the web based applications or local servers which you allow as opposed to a regular VPN which connects the user to the network directly for access to any resource which is accessible locally. No TCP/UDP ports have to be opened on your host router; if the user cannot login to the VPN, they won't get access.

As mentioned previously, an SSL VPN uses your standard web browser; this means that for your web based applications running at your office (webmail, Intranet, Thin Clients etc.) SSL VPNs work really well for this access method, which is called 'SSL Web Proxy' mode. A very common application for SSL VPN is remote desktop. By using the Windows 'Remote Desktop Web Connection', your office desktop will be accessible from your web browser whereever you are and whoever's computer you're using. In addition, by using Vigor web proxy, you can browse external web sites via the tunnel, thus bypassing any local web site blocking policy (content filtering or local polcies). If you are familiar with 'port redirection' or 'open ports setup' on Vigor routers, SSL Proxy to your internal web services is very similar in concept to this except that the data passes through a secured tunnel, hence increasing security and privacy.

SSL VPNs beyond the Browser Using the web browser for your remote access is great for accessing web-based applications (intranet, webmail, remote web desktop etc.) but it does not provide access to the actual network directly, for example for shared directory access, network resources or other applications which are not browser based. Only data or applications which are available in your web browser locally are available remotely via the SSL Proxy (see above). For full network access, DrayTek provide an Active-X Tunnel plug-in (a VPN client, effectively) which can transfer at the network layer, making a fully VPN tunnel. This is called SSL Tunnel mode. This plug-in is downloaded automatically by your browser from the host Vigor router when you log into the SSL VPN and select Tunnel mode. You are then fully connected to the remote network for direct network resource access. In this way, you are no longer limited to running web-based applications and can access shares and other network resources.

Microsoft SSTP

Microsoft has developed their own version of SSL VPN called 'SSTP' (Secure Socket Tunnelling Protocol) which is supported by Windows Vista. DrayTek Corp. has signed a licencing agreement with Microsoft to develop SSTP capability on their firewalls/routers. The Vigor2930 SSTP firmware is due ETA Q3/09.

VPN Trunking

VPN Trunking

VPN Trunking is the facility to create more than one VPN tunnel to the same remote location in order to provide either increased bandwidth between the two sites (load balancing) or resilience (failover) in the event that one tunnel/connection is interrupted. The Vigor 2930 supports both Failover and Load Balancing modes for VPN Trunks.

The Vigor 2930 already supports load balancing to the Internet using its dual-WAN ports. What VPN trunking does is enables a tunnel to be created down each WAN connection to the same remote location creating a single virtual tunnel, as far as the traffic and LAN devices/clients are concerned.

In the diagram above, you can see a single virtual tunnel as far as the LAN at each end is concerned. Within the router, two WAN connections are being used with each router, across which the VPN tunnel can be spread, increasing total capacity and/or redundancy (for failover).

DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router - VoIP

DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router - Voice-over-IP Features

The Voice-over-IP (VoIP) facilities on the DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router are extensive. Standard SIP compliance, with up to 12 simultaneous registrars (e.g. DrayTEL etc.) is supported, plus multiple codec support and many supplemental services enabling you to make thorough use of your Internet connection for Voice calls. Short codes (speed dials) and VoIP LCR ('Least Cost Routing') are also supported./p>

DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router Schematic From left : Two analogue VoIP ports, two ISDN Sockets (One S0, one switchable S0/NT), dual Ethernet WAN ports and four LAN Ethernet ports.

DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router - Specification

DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router Series Specification

• Physical Interfaces:
  • LAN: 4-port 10/100 Base-TX Switch
  • WAN: 2-port 10/100 Base-TX Ethernet
  • VoIP: 2-port FXS Phone Ports
  • ISDN: 2-Ports. One fixed S0, one configurable NT / TE mode
• Dual-WAN Ports:
  • 10/100Base-T Ethernet
  • Outbound Policy-Based Load-Balance
  • WAN Connection Fail-over
  • BoD (Bandwidth on Demand)
• VoIP Features:
  • Protocols: SIP, RTP / RTCP
  • 12 SIP Registrar Accounts (for up to 12 VoIP providers)
  • G.168 Line Echo-cancellation
  • Automatic Gain Control
  • Jitter Buffer ( 125ms )
  • Voice Codecs:
    • G.711 A / µ Law
    • G.723.1
    • G.726
    • G.729 A / B
  • Wireless LAN Features:
    • 802.11n Compliant (Draft 2.0)
    • Latest 'MIMO' Technology with three aerials (2T3R)
    • Packet Aggregation and Channel Bonding
    • Optional Higher Gain or directional aerials available
    • Compatible with 802.11b and 802.11g Standards
    • Active Client list in Web Interface
    • Wireless LAN Isolation (from VLAN groups and wired Ethernet interfaces)
    • 64/128-bit WEP Encryption
    • WPA/WPA2 Encryption
    • Switchable Hidden SSID
    • Restricted access list for clients (by MAC address)
    • Time Scheduling (WLAN can be disabled at certain times of day)
    • Access Point Discovery
    • WDS (Wireless Distribution system) for WLAN Bridging (Firmware Upgradable)
    • 802.1x Radius Authentication
    • Wireless Rate-Control
    • Automatic Power Management
    • 802.11e WMM (Wi-Fi Multimedia)
  • VAD / CNG
  • Tone Generation: DTMF , Dial , Busy , Ring Back , Call Progress
  • DTMF Transmission: In Band / Out Band ( RFC-2833 ) / SIP info
  • FAX / Modem Support G.711 Pass-through
  • T.38 for FAX
  • Supplemental Services:
    • Caller ID
    • Call Hold / Retrieve
    • Call Waiting
    • Call Waiting with Caller ID
    • Call Transfer
    • Call Forwarding ( Always , On Busy and On No Answer )
    • DND (Do not Disturb)
    • Call Barring ( Incoming / Outgoing )
    • MWI ( Message Waiting Indicator ) ( RFC-3842 )
    • Hotline (Dial preset number when handset lifted)
• WAN Protocols:
  • DHCP Client
  • Static IP
  • PPPoE
  • PPTP
  • L2TP *
  • BPA
• Firewall & Security Features:
  • CSM (Content Security Management):
    • URL Keyword Filtering - Whitelist or Blacklist specific sites or keywords in URLs
    • Surfcontrol Support - Block Web sites by category (subject to subscription)
    • Prevent accessing of web sites by using their direct IP address (thus URLs only)
    • Blocking automatic download of Java applets and ActiveX controls
    • Blocking of web site cookies
    • Block http downloads of file types :
      • Binary Executable : .EXE / .COM / .BAT / .SCR / .PIF
      • Compressed : .ZIP / .SIT / .ARC / .CAB/. ARJ / .RAR
      • Multimedia : .MOV / .MP3 / .MPEG / .MPG / .WMV / .WAV / .RAM / .RA / .RM / .AVI / .AU
    • Time Schedules for enabling/disabling the restrictions
    • Block P2P (Peer-to-Peer) file sharing programs (e.g. Kazza, WinMX etc. )
    • Block Instant Messaging programs (e.g. IRC, MSN/Yahoo Messenger etc.)
  • Multi-NAT, DMZ Host
  • Port Redirection and Open Port Configuration
  • Policy-Based Firewall
  • MAC Address Filter
  • SPI ( Stateful Packet Inspection )
  • DoS / DDoS Protection
  • IP Address Anti-spoofing
  • E-Mail Alert and Logging via Syslog
  • Bind IP to MAC Address
• VPN Support:
  • Up to 50 Simultaneous VPN Tunnels
  • Protocols : PPTP, IPSec, L2TP, L2TP over IPSec
  • Encryption : MPPE and Hardware-Based AES / DES / 3DES
  • Authentication : Hardware-Based MD5 , SHA-1
  • IKE Authentication : Pre-shared Key and Digital Signature ( X.509 )
  • PFS (Perfect Forward Secrecy)
  • IKE Phase 1 Agressive/Standard Modes & Phase 2 Selectable lifetimes
  • LAN-to-LAN (Dial-in & Dial-Out), Teleworker-to-LAN
  • DHCP over IPSec
  • NAT-Traversal (NAT-T)
  • Dead Peer Detection (DPD)
  • VPN Pass-Through
• Bandwidth Management:
  • QoS
  • Guaranteed Bandwidth for VoIP
  • Class-based Bandwidth Guarantee by User-Defined Traffic Categories
  • DiffServ Code Point Classifying
  • 4-level Priority for each Direction (Inbound / Outbound)
  • Bandwidth Borrowed
  • Temporary (5 minute) Quick Blocking of any LAN Client
  • Bandwidth / Session Limitation
• Network/Router Management:
  • Web-Based User Interface (HTTP / HTTPS)
  • CLI ( Command Line Interface ) / Telnet / SSH*
  • Administration Access Control
  • Configuration Backup / Restore
  • Built-in Diagnostic Function
  • Firmware Upgrade via TFTP / FTP
  • Logging via Syslog
  • SNMP Management with MIB-II
• Network Features:
  • DHCP Client / Relay / Server
  • Dynamic DNS
  • NTP Client (Syncrhonise Router Time)
  • Call Scheduling (Enable/Trigger Internet Access by Time)
  • RADIUS Client
  • DNS Cache / Proxy
  • Microsoft™ UPnP
  • Port-Based VLAN (Ethernet LAN ports exclusive/inclusive groups)
Routing Protocols:
• Static Routing
• RIP V2
• Operating Requirements:
  • Rack Mountable (Optional mount bracket required)
  • Temperature Operating : 0°C ~ 45°C
  • Storage : -25°C ~ 70°C
  • Humidity 10% ~ 90% ( non-condensing )
  • Power Consumption: 18 Watt Max.
  • Dimensions: L240.96 * W165.07 * H43.96 ( mm )
  • Operating Power: DC 15V (via external PSU, supplied)
  • Warrantyu : 2 Years Manufacturer's RTB included
  • Power Requirements : 220-240VAC

DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router - Accessories

DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router - Rack Mounting Kit

The RM1 Rackmount Bracket enabled you to fit any Draytek Vigor 2820n series router into a standard 19" rack or cabinet. The bracket takes up one rack slot (1U). The front mounted sockets remain fully accessible. For wireless models, we then recommend extension aerials (or aerial extensions).

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DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router - Directional and Higher-Gain Aerials

Omnidirectional and Unidirectional aerials are available for increased coverage or other specialist requirements.

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DrayTek Vigor2930Vn Dual-WAN Wireless-N VoIP Router - Wireless LAN Adaptors

The Draytek Vigor N61 USB Wireless Adaptor adds 802.11b/g/d (Draft 2.0) to any Windows XP/Vista laptop or Desktop PC via the USB port.