| Kerio Winroute Firewall
6 |
 |
Kerio WinRoute Firewall 6
sets new standards in versatility, security and user access
control. Designed for corporate networks, it defends against
external attacks and viruses and can restrict access to
websites based on their content. |
Stateful network firewall
The primary function of any perimeter firewall is to control
outgoing and incoming network traffic based on corporate security
policy. Kerio WinRoute Firewall offers rich yet easily understandable
rule definition to perform stateful inspection of all Internet
traffic, enforcing the security policy. A network rules wizard
assists in the rapid setup of the firewall.
Kerio WinRoute Firewall 6 is a robust network
firewall operating at the lowest possible layer of the OS.
The stateful inspection firewall protects the whole local
network and also the computer it is installed on. regardless
to whether its built-in NAT technology is utilized or not,
it controls both incoming and outgoing communication on all
available interfaces, thus giving users a comparable level
of firewall protection found in far more expensive solutions.
Kerio WinRoute Firewall 6 brings the revolutionary
conception of traffic rules configuration. This allows configuring
the packet filter, NAT, port mapping and access control rules
easily from one comprehensible table. The built-in configuration
wizard will help you to set-up the firewall in minutes and
your network will be connected to the Internet securely in
no time at all.
Protocol inspection
Another level of protection is added by WinRoute's
inspection modules. These understand network communication
protocols and ensure that only standard behaviour is allowed.
Inspection modules are available for a wide range of standatd
protocols, including HTTP, FTP and IRC. Multimedia and VoIP
protocols, such as MMS, H.323, SIP and Cisco SCCP are also
supported.
An inspection module, applied to a traffic rule,
checks that communication allowed by the rule also corresponds
with the given protocol. For example, an HTTP inspection module
applied to a rule allowing communication on port 80 ensures
that only HTTP traffic will actually be accepted.
Fast Internet sharing
Support for DSL, cable modems, ISDN, satellite, dial-up or
wireless Internet allows users to deploy Kerio WinRoute Firewall
in networks of all sizes and in all locations. All users can
share one or multiple Internet connections. The built-in DNS
forwarder accelerates DNS queries, while the built-in transparent
HTTP proxy server caches content, for web browsing at blazing
speeds.
Kerio WinRoute Firewall 6 can easily connect
the whole Local Area Network to the Internet. This can be
achieved by utilizing the NAT (Network Address Translation)
facility of the WinRoute's router or by using the built-in
proxy server.
NAT Router
Kerio WinRoute Firewall 6 includes the best
implementation of NAT technology available today. It is designed
to provide users with the ultimate in routing capability and
network protection. The NAT driver, written exclusively for
Kerio WinRoute, offers a security solution comparable to more
expensive products at substantially less cost.
The advanced routing features of Kerio WinRoute
Pro's NAT allows for the easy integration of a LAN into the
corporate WAN while keeping the option available for separate
Internet access. There is no need to manually edit routing
tables in a DOS prompt. WinRoute 6 has a simple graphical
interface to the routing table and editing is both easy and
comfortable.
Proxy Server
Although a bit more limited compared to the
NAT technology, a simple proxy server is included in Kerio
WinRoute Firewall 6 for old-fashioned users. The advantage
of this is that there is no need to edit any of the TCP/IP
paramatres on the local workstations.
Combined with the DHCP server (also built in
WinRoute 6) it is one of the easiest ways to connect the local
network to the Internet instantly. The proxy server features
automatic configuration for browsers so any browser supporting
this, such as Microsoft Internet Explorer, will be able to
connect immediately after Kerio WinRoute Firewall is installed.
Cache Server
Built-in Kerio WinRoute Firewall 6 is a sophisticated
HTTP cache server. This stores frequently visited websites
in a local cache file. The next time a webpage is visited
it is not downloaded off the Internet but from the local server.
This speeds up webpage download time tremendously. WinRoute's
Cache Server can operate regardless to whether the built-in
proxy server is used or not.
To prevent the problem of a certain website
not being updated when required, found in similar solutions,
Kerio WinRoute Firewall offers to store files in the local
cache for a limited time only and also exclusions can be set
for certain websites so they are not cached at all. In addition
to this, users can manually delete files from the cache using
the WinRoute's web interface.
DHCP/DNS Services
In a network, each computer has to have its
TCP/IP protocol properly configured. This means that the IP
address, network mask, default gateway address, DNS server
address, etc. must be configured on each computer. If the
administrator has to set theses parameters manually on a large
number of workstations, it is difficult to avoid mistakes,
e.g. using an address twice - which may cause collisions and
consequently an incorrect function of the entire network.
Dynamic Host Configuration Protocol (DHCP) is
a feature of Kerio WinRoute Firewall designed to simplify
the task of network administration. Built-in DHCP server can
provide all TCP/IP parameters to all workstations on the local
network.
Kerio WinRoute Firewall also features a simple
DNS module that is able to forward DNS queries to a chosen
DNS server on the Internet. The DNS module stores the results
of the queries in its internal cache where they are kept for
a certain time. Subsequent repeated queries are then answered
using the cached data without the need to wait until an answer
from the Internet arrives.
Dial-on-Demand
For users with dial-up, VPN, ISDN, PPPoE or
any other connection type using Windows Remote Access Service
(RAS), Kerio WinRoute Firewall is capable of calling/closing
this connection based on the following conditions: Outgoing
network activity is detected (demand dial), user dials using
the WinRoute Administration or the Web Interface (manual dial),
or the time of day or day of week indicates when the connection
should be active (scheduled dial).
Anti-virus protection
In terms of antivirus control, Kerio WinRoute Firewall comes
in two variations:
1. Kerio WinRoute Firewall
2. Kerio WinRoute Firewall with integrated McAfee Anti-Virus
Gateway antivirus scanning
Having anti-virus installed at the perimeter of the local
area network substantially decreases the risk of spreading
virus infection. Kerio WinRoute Firewall provides optional
scanning of inbound and outbound HTTP and FTP traffic for
viruses. In addition to integrated McAfee, there are several
other anti-virus vendors to choose from.
Scanning HTTP and FTP traffic at the gateway
has several advantages:
All Internet traffic is always scanned.
It is easy to maintain an virus scanner installed in single
location.
It is easy to update virus definitions for a gateway anti-virus.
All computers accessing Internet are protected against web-borne
viruses, whether they have their own anti-virus or not.
As an additional security measure, Kerio recommends installing
anti-virus software on each computer. For email virus protection,
we recommend running Kerio MailServer with one of the optional
anti-viruses.
Simple anti-virus administration
enabling virus scanning in Kerio WinRoute Firewall requires
very little configuration. The interface lets the administrator
choose which anti-virus will be used and how often the virus
database should be updated.
One advanced option allows the administrator
to set which files are to be scanned and which not, according
to the file type.
Content and web filtering
In corporate and educational environments, it is often desirable
to restrict access to websites with offensive or counterproductive
content and filter the traffic to ensure that malitious code
doesn't get through and unwanted activities are not performed.
There are serveral measures to choose from:
1. User access rights
The fundamental step in creating security and access policy
is defining users and their rights.
A "user" can be defined as an IP address
or computer name, user names with password, user group, entire
network, etc. Each user can be associated with different restrictive
access rights. Variable restrictions can be applied for specified
time intervals.
User may be required to input their user name
and password before being allowed to view certain websites
or downloading certain types of files.
2. Cobion content filter
To increase employee productivity and to protect the company
from potential lawsuits, Kerio WinRoute Firewall can deny
access to certain websites. As an optional component, the
firewall integrates Cobion content filter, an extensive database
of several billion websites divided into 50 different categories
such as news, shopping, porn, hate or lifestyle sites.
Every time a user attempts to visit a website,
Kerio WinRoute Firewall asks Cobion database whether the page
is listed in any of 50 categories. If the page matches the
database, Kerio WinRoute Firewall automatically denies access
to the page or a user can be prompted with a warning that
such activity can be monitored, logged and an administrator
can be nofitied.
Cobion database is stored on a central server
on the Internet therefore there's no need to locally download
daily updates with thousands of newly added URLs. Since the
database is remote, the system requirements are low and Kerio
Kerio WinRoute Firewall with Cobion technology can be deployed
on a regular PC.
Even under heavy load, the Cobion database responses
are faster than responses from web servers so there's no delay
when surfing Internet.
3. Administrator-defined
restricted pages
In addition to the Cobion database, an administrator can create
its own list of web pages that users are not allowed to view.
4. Attachment filtering
Kerio WinRoute Firewall 6 can check all passing communication
directly and deny the transfer of any potentially dangerous
files. Filtering is performed for all files according to their
extensions (eg. .exe, .com, .vbs, etc.) or their MIME type
(application, image, text).
This might be desireable in case, for instance,
when anti-virus software is not yet aware of a new virus and
classifies a potentially dangerous attachment as safe.
5. HTTP filtering &
blocking pop-up windows
With HTTP filtering, each user can can block annoying pop-up
and pop-under advertising windows when surfing Internet.
HTTP filtering allows to define filters for
ActiveX and JavaScript content, ensuring that no potentially
malicious code gets through the firewall. What's more, an
administrator can apply global filters.
6. FTP filtering
Similarly to HTTP filter rules, FTP rules can also be applied
to restrict access to FTP servers on the Internet. Access
can be restricted solely to transferring files between the
permitted FTP server and the client or only certain FTP commands
can be permitted/denied.
In practice
If we combine all the above features we can, for instance,
achieve the following results:
Users will only be able to access websites,
selected FTP servers and a corporate mailserver
Nobody in the company will ever be able to access sites containing
porn
Everybody will allways be able to access news websites (such
as CNN, BBC, MSN, etc.)
Access to sites containing topics such as leisure, chat, music,
etc. will only be permitted outside working hours and during
lunchtime
Nobody will be permitted to download MP3 files
Selected users will be able to access everything with no limitations
after a successful authentication
All this should not take more than 15 minutes
to set up in a network environment of 20-50 users. Nice, isn't
it?
VPN, VoIP & UPnP
support
VPN support
In situations where a virtual private network needs to be
established between two networks or between a server and clients,
Kerio WinRoute Firewall includes support for IPSec NAT Traversal
and PPTP VPN protocols, allowing a variety of third-party
solutions to be deployed.
Kerio WinRoute Firewall supports both server-to-server
and client-to-server types of VPN. It is even possible to
take advantage of VPN capabilities of the Windows operating
systems and create various VPN environments using only Windows
and Kerio WinRoute Firewall. No third party software is required.
WinRoute also supports the RRAS facility included in server
editions of Microsoft Windows operating systems.
Voice over IP support
H.323
It has always been difficult to deploy IP telephony in firewall-protected
networks since VoIP protocols such as H.323 were not designed
to easily traverse the firewall. Kerio WinRoute Firewall allows
VoIP to run from behind it, eliminating the need to publicly
expose the VoIP infrastructure to the Internet.
Cisco SCCP
If a company wants to take advantage of VoIP devices in Cisco
AVVID environment, Cisco's Skinny Client Control Protocol
(SCCP) is used for establishing communication between an IP
Phone and Cisco CallManager. The firewall of course needs
to recognize it and understands the information passed within
these signalling messages.
As of the start of 2003, there is only one firewall
besides Kerio WinRoute Firewall that supports SCCP, and that
is Cisco's own PIX Firewall.
Kerio WinRoute Firewall automatically detects
SCCP protocol and perfoms NAT for address translation between
the IP phone and Cisco CallManager. Since Kerio WinRoute Firewall
performs dynamic IP address translation, an administrator
does not need to manually configure an IP address within NAT
for each IP phone.
UPnP support
Universal Plug and Play (UPnP) in Windows enables applications
to communicate without additional settings at the firewall.
Kerio WinRoute Firewall integrates UPnP technology so that
compliant applications such as MSN Messenger can run instantly
without hassle.
Network Administration
DHCP Server
With a large number of workstations on the network
it is highly probable that one will make a mistake when configuring
all the TCP/IP parameters. Assigning the same IP address to
two different workstation is a very common problem, for example.
And not only that, going from one computer to another and
entering all the paramaters by hand can get very tedious and
tiring indeed.
Kerio WinRoute Firewall 6 incorporates a full-featured
DHCP server to take care of all TCP/IP configuration on your
network. It is then enough to leave all workstation to "Obtain
IP parameters automatically" and perform a few settings
on the WinRoute gateway. Anything from simple Default Gateway
and DNS Server settings to more advanced parameters, such
as a TFTP server and time server, can be assigned.
In addition to this, the Kerio WinRoute Firewall
Administration displays a nice chart showing how many parameters
have been assigned and how many there are still left. This
can be very useful on large networks where one can easily
get lost in numbers and can underestimate the network's needs.
DNS Forwarder
The DNS Forwarder is a very simple yet very
useful tool that forwards all DNS queries to a parent DNS
server and then sends the reply to asking clients. Replies
can be stored in local cache so that the next time the same
DNS request is sent matters are handled locally. This is much
faster than if every single query had to be sent to the real
Internet DNS server.
Also, combined with a local HOSTS file, the
DNS Forwarder can be used as a simple DNS resolution server
for the local domain. There is no need to configure a real
DNS server if the size of the network does not really require
it.
Firewall traffic information
The administrator can view directly in the Kerio
WinRoute Firewall Administration how effectively the Internet
connection is being used. Comprehensible charts showing passing
traffic in different time intervals and the list of active
connection can both help the administrator to determine how
to configure the firewall better.
The connection list shows a table of all active connections
with all necessary information, such as the source and destination
IP addresses, ports and protocols used and the amount of data
transferred through the connection. It is even possible to
kill a chosen connection from the WinRoute Administration.
Managing the routing table on the WinRoute gateway
is very simple, too, as the WinRoute Administration contains
a user-interface front to the table. Adding or removing routes
is now both simple and comfortable and delving into the horrors
of a DOS prompt is no longer necessary.
Web Interface
Kerio WinRoute Firewall 6 features a simples
web interface that allows users to log on and off the firewall,
change their password and perform other actions relating to
the WinRoute firewall. For example, users can dial or hang-up
a selected dial-up interface, delete files from the WinRoute
cache, filter ActiveX or JavaScript content and pop-up windows,
and more. The interface can run on a secure (SSL) channel.
Remote Administration
Kerio WinRoute Firewall 6 provides the administrator
with the benefit of remote administration. With proper settings
and rights in place, it is possible to securely administer
your firewall from any place in the world. Access to the Engine
is secured by strong encryption and password.
Kerio Administration Console provides the configuration and
settings for the Kerio WinRoute Engine. The Kerio Administration
Console is a separate application (admin.exe) that may be
run from any computer and connect via a TCP/IP connection
to a Kerio WinRoute computer. The Kerio Administration Console
can also be used to administer other server Kerio products,
such as the Kerio MailServer 6.
|