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Draytek Vigor2860 Series User Manual

Draytek Vigor2860 Series
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Vigor2860 Series User’s Guide
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While the broadband users demand more bandwidth for multimedia, interactive applications,
or distance learning, security has been always the most concerned. The firewall of the Vigor
router helps to protect your local network against attack from unauthorized outsiders. It also
restricts users in the local network from accessing the Internet. Furthermore, it can filter out
specific packets that trigger the router to build an unwanted outgoing connection.
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The users on the LAN are provided with secured protection by the following firewall facilities:
User-configurable IP filter (Call Filter/ Data Filter).
Stateful Packet Inspection (SPI): tracks packets and denies unsolicited incoming data
Selectable Denial of Service (DoS) /Distributed DoS (DDoS) attacks protection
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Depending on whether there is an existing Internet connection, or in other words “the WAN
link status is up or down”, the IP filter architecture categorizes traffic into two: Call Filter and
Data Filter.
Call Filter - When there is no existing Internet connection, Call Filter is applied to all
traffic, all of which should be outgoing. It will check packets according to the filter rules.
If legal, the packet will pass. Then the router shall “initiate a call” to build the Internet
connection and send the packet to Internet.
Data Filter - When there is an existing Internet connection, Data Filter is applied to
incoming and outgoing traffic. It will check packets according to the filter rules. If legal,
the packet will pass the router.
The following illustrations are flow charts explaining how router will treat incoming traffic
and outgoing traffic respectively.

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Draytek Vigor2860 Series Specifications

General IconGeneral
Firewall TypeStateful Packet Inspection (SPI)
VPN SupportIPSec, PPTP, L2TP, SSL VPN
DoS ProtectionYes
Intrusion Prevention System (IPS)Yes
LAN Interfaces4 x Gigabit Ethernet
User AuthenticationLocal, RADIUS, LDAP
VPN Tunnels32
Management InterfaceWeb-based, CLI
Concurrent Sessions50, 000
Content FilteringURL Keyword Filtering, Web Content Filtering

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