| Quick Links |
|
Downloads |
|
|
|
| ||||||||||
| Home | Products | Comparison | Support | About | Contact | Press | |||||
| Vigor 2820 Series ADSL Router Firewall | SME | |||
 |
|
|||
|
Vigor 2820 Series ADSL Router FirewallThe Vigor 2820 series is DrayTek's latest premium ADSL and broadband router/firewall family, featuring an entirely new stylish case design and new DrayOS 3 operating system. Packed with features, the Vigor 2820 offers truly comprehensive ADSL connetivity and security.Compatible with all variants of ADSL (include ADSLMax and ADSL2+) the Vigor 2820 can also be used for cable-modem and leased line applications thanks to its additional WAN port (Ethernet). A Gigabit Ethernet port on the WAN side provides high speed connectivity for your server (or uplink to a larger Ethernet Switch). Security features include content filtering, web application controls and a new object based firewall management system. |
As with previous DrayTek firewalls, security is taken seriously on the Vigor 2820 Series. The firewall features measures for protection against attacks including DoS (Denial of Service) attacks, IP-based attacks and access by unauthorised remote systems. Wireless, Ethernet and VPN are also protected by various protection systems (see later). A new DrayTek object-based firewall allows even more setup flexibility than ever, enabling you to create combinations of users, rules and restrictions to suit multi-departmental organisations.
Content control features of the firewall allow you to set restrictions on web site access, blocking download of certain file types, blocking specific web sites, blocking IM/P2P applications or other potentially harmful or wasteful content. Using the SurfControl site categorisations enable you to block whole categories of web sites (e.g. gambling, pornography etc.), subject to subscription
Dual-WAN Load Balancing & BackupAs well as the primary ADSL interface, the Vigor 2820 features a secondary WAN port for Internet access. This is an Ethernet interface and can connect to a second ADSL modem, cable modem or any other Ethernet-based Internet feed. The secondary interface can be used either for WAN-Backup or load balancing. WAN-Backup provides contingenry (redunancy) in case of your primary ADSL line or ISP suffering temporary outage). Internet Traffic will be temporarily routed via the secondary Internet access. When normal services is restored to your primary ADSL line, all traffic is switch back to that. If you don't have ADSL, the Ethernet WAN port can instead be used as your primary/only Internet connection (using NAT) so the same router can be used for either ADSL or Ethernet Internet connections. The USB port provides an alternative connection method (Firmware Upgradable) for Internet backup by connecting to a compatible USB modem (or cellphone) for access to the high speed 3G cellular networks from UK providers such as Vodafone, Orange, 3 and T-Mobile. If you don't have ADSL at all, the USB/3G access method can be used as your primary/only Internet connection, ideal for temporary locations, mobile applications or where broadband access is not available. Note : For WAN2 you can use either a Ethernet or USB 3G connection but not both at the same time. |
|
The Vigor2820 Series 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 Vigor'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 Vigor 2820 Series 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 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 Wireless VLAN facility allows you to isolate wireless clients from each other or from the 'wired' LAN.
The Multiple SSID features enables you to have up to four distinct or common virtual wireless access points. For example, you could have one for company usage, with access to your company LAN and another for public access which allows internet surfing only. Setting up wireless security is made easier thanks to the WPS feature (WiFi protected setup) whereby your client PC can get it's security keys by pressing a button on the front of the router.
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 Vigor N61 USB adaptor. Click on 'accessories' for details.
For specialist or more demanding coverage applications, optional aerials can be used with the Vigor 2820 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. With the increasing popularity of wireless LANs, you will want to choose the least congested wireless channel (Nos. 1-13) for yours. The Vigor can scan and provide a list of all devices in the vicinity so that you can choose the best channel (see screenshot below).
|
 Above : The Vigor2820n provides a local survey of other access points so that you can choose the least congested channel. |
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.
Vigor 2820 'n' models support a system called WDS (Wireless Distribution System) which enables you to use the wireless capability to bridge to another network, within wireless range. You need an additional compatible wireless router for this of course. Here is a simple example:
With WDS bridging, both networks should be within the same logical IP subnet (IP address range). Once set up, all of the PCs on both sides of the link can access each other, across the wireless bridge. Local wireless devices such as a laptop can continue to use their local access point.
An additional mode, as shown above, called 'repeating', allows you to set up a third station. In the diagram below, the router at 'B' is set up in repeating mode, relaying traffic between LANs at A and C. Therefore, all three physical networks can communicate with each other over the wireless links.
The Vigor 2820 Series 'V' models build on the established DrayTek VoIP pedigree by adding even more new feaures. Twin analogue phone ports and an FXO analogue line port provide full PSTN and VoIP integration on the same phones, via both the Internet and your regular analogue line. The two phones can be used independently and simultaneously for both incoming and outgoing calls.
| As well as the two telephone ports, a third port, the FXO (Line) port, connects into your regular analogue line (PSTN/POTS*). This then gives the telephones access to your analogue line to allow you to make calls as well as your VoIP facility (you can select the PSTN line instead of VoIP by dialling #0). Incoming calls are automatically switched through to your telephone(s) (either one or both) so that each phone can be used for both VoIP and POTS calls. Both telephones plugged into your router have access to VoIP and your analogue line. In addition, using the 'Digit-Map' facility you can set rules about particular call destinations using either the POTS line or your SIP/VoIP service. For example, local calls can be routed via your PSTN line (if you have a free calls package for example) whereas international calls can go via your preferred VoIP provider; there is flexibility to have several digit-map rules. |  |
The above diagram should be used as a working schematic only, rather than an exact representation of the unit's connectivity and should be viewed with these notes: Of the two ISDN ports (available on 'S' models only), ISDN Port 1 can be configured either as a TE Port, that is, for connecting into an ISDN2e/Highway line or configured as an S0 Bus for local connection to ISDN telephones or other compatible ISDN equipment. ISDN Port 2 is permanently configured as an Internal S0 Bus. The USB port can be used for a compatible 3G modem or a shared compatible printer connection. The secondary WAN Port ('WAN2') can be used for connection to any Ethernet feed for load balancing or Internet backup. You cannot use both WAN2(Ethernet) and USB for 3G at the same time. The LAN Ports are not shown on this diagram.
*POTS = Plain Old Telephone Service - The traditional analogue phone voice line in your home/office, e.g. B.T. That line may also be carrying your ADSL data signal.
The Vigor 2820 Series's USB port can host a compatible 3G modem or cellphone for access to the cellular network for full Internet Access. Most UK networks now provide high speed HSDPA data connections at up to 3.6Mb/s download speed. The 3G connection can be used as your primary/only Internet access, or as backup to your main ADSL line connection. This is not only ideal for homes or offices which don't want to pay fixed line + broadband rental, but also for temporary locations, or those to where fixed lines aren't available.
With the Wireless LAN equipped models of the Vigor 2820 series, your local users can be connected wirelessly to the router, so instant free 'hotspots' can be deployed quickly and easily. Mains power is required for the router's PSU, but this could be from a mobile generator or equivalent so you need to plan for this.
|
Supported 3G Modems / Phones
A USB connection cable is required for your phone (not supplied). |
|
The Vigor 2820 and 3G cellular modem setup is ideal for:
Example Use : Installation in a mobile café or moving bus
Note: DrayTek have no control over local network/provider operations, changes in network facilities/tarrifs nor make any claim over specific network compatibility. Please assure yourself that the router will be compatible with your chosen cellular network and provider and that you have adequate signal coverage before committing to any contract term. Please also ensure that your chosen provider and the tariff allows access to all of your required applications (e.g. VPN, VoIP, Messaging etc.) as many packages exist, some blocking certain data types.
The Vigor 2820 Series features ISDN interface equipped models which provide connectivity to ISDN BRI lines (ISDN2e, BT Highway) for Internet access (either primary or backup) and also internal S0-Buses for connection of ISDN digital telephone sets. Even without an external ISDN line, this gives you additional VoIP telephone capacity as both ISDN ports can be configured as internal buses with two phones connected to each port (each ISDN S0 bus is full 2B+D).
The above diagram should be used as a working schematic only, rather than an exact representation of the unit's connectivity and should be viewed with these notes: Of the two ISDN ports, ISDN Port 1 can be configured either as a TE Port, that is, for connecting into an ISDN2e/Highway line or configured as an S0 Bus for local connection to ISDN telephones or other compatible ISDN equipment. ISDN Port 2 is permanently configured as an Internal S0 Bus. The USB port can be used for a compatible 3G modem or a shared compatible printer connection. The secondary WAN Port ('WAN2') can be used for connection to any Ethernet feed for load balancing or Internet backup. The LAN Ports are not shown on this diagram. ISDN ports are only available on 'S' models. VoIP ports are only available on 'V' models.
Load Balancing Setup with two ADSL lines or One ADSL line and 3G modem. Note: You can only have one secondary WAN method configured.
The RM1 Rackmount Bracket enabled you to fit any Vigor2820 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).
Omnidirectional and Unidirectional aerials are available for increased coverage or other specialist requirements. For full specifications, click here.
The 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.
The above comparison chart is provided for approximate guidance; please refer to the full specification of each model for the exact product capabilities. E&OE. ©2008