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Remote Access over HTTPS
51
4.
Select the “Dynamic DNS” page and set up Dynamic
DNS. Consult the Online Help available in the FRITZ!Box
user interface for more information.
10.4
Remote Access over HTTPS
With this function it is possible to access the user interface of
the FRITZ!Box from another location. With this feature you can
configure settings in the FRITZ!Box or perform a firmware up-
date using a computer that is not in your own network (LAN or
WLAN).
Setting Up Remote Access over HTTPS in the FRITZ!Box
1.
Open the FRITZ!Box user interface (
page 31
).
2.
Make sure that the expert mode is enabled in the “Sys-
tem / Expert Mode” menu.
3.
Select the “Internet / Permit Access” menu.
4.
Select the “Remote Access” page and set up dynamic
DNS. For more information, see the Online Help.
10.5
Prioritization: Right of Way for Internet Access
Prioritization is a function you can use to specify that network
applications and network devices be treated with higher or
lower priority when they access the Internet connection. For
example, you may wish to ensure that applications like Inter-
net telephony, IPTV and video on demand are always treated
with higher priority than other applications. You can also
specify that file-sharing applications like eMule and BitTor-
rent always have to wait behind online games.
Categories for Prioritization
There are three categories for prioritization: “Real-time appli-
cations”, “Prioritized applications” and “Background appli-
cations”. The categories are explained below.
Network applications and network devices are assigned to
the categories using rules.
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52
Prioritization: Right of Way for Internet Access
Real-time Applications
Network applications of this category always have priori-
ty over other applications accessing the Internet at the
same time.
When the Internet connection is working at full capacity,
the network packets of the applications of this category
will always be sent first. In this case data from network
applications assigned to other categories, like “Priori-
tized applications”, will be transmitted later.
If multiple network applications are assigned to this cat-
egory, then they must share the available capacity.
Whenever Internet telephony is included in this catego-
ry, this application always has the highest priority, even
over other real-time applications.
Prioritized Applications
This category is suitable for applications that require a fast re-
action time (for example, company access, terminal applica-
tions, games).
For network applications prioritized in this category,
90% of the FRITZ!Box’s upload bandwidth is available,
as long as no application from the “Real-time applica-
tions” category requires bandwidth. The remaining 10%
of the upload bandwidth is available for applications
that are prioritized in lower categories or not prioritized
at all.
If multiple network applications are assigned to the “Pri-
oritized applications” category, then they must share
the available capacity.
Background Applications
This category is suitable for applications that do not require
any high transmission speed and which are not time-critical
(for example, peer-to-peer services or automatic updates).
Network applications assigned to this category are al-
ways treated with the lowest priority when the Internet
connection is working at full capacity. So whenever an
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Prioritization: Right of Way for Internet Access
53
application from a different category or a non-prioritized
application requires the entire bandwidth, all back-
ground applications must wait until bandwidth capacity
becomes available again.
If no other network applications are active, then the
background applications receive the entire bandwidth.
Prioritization Method in the FRITZ!Box
The following algorithm is used in the FRITZ!Box to send data
packets according to their prioritization:
Change in the order in which packets are sent to the In-
ternet (upstream direction)
The order of the packets the FRITZ!Box receives from the
Internet (downstream direction) cannot be changed.
Discard low-priority packets in order to ensure the trans-
mission of higher-priority packets. This algorithm is
used whenever more packets are supposed to be sent to
the Internet than the upstream transmission rate of the
Internet connection allows.
As long as no packets are being sent from higher-priority
applications, the full transmission rate of the Internet
connection is available for low-priority packets.
Setting Up Prioritization in the FRITZ!Box
In order to use prioritization, the expert mode must be en-
abled in the user interface of the FRITZ!Box.
1.
Make sure that the expert mode is enabled in the “Sys-
tem / Expert Mode” menu.
2.
Prioritization is set up in the “Internet / Filters / Prioriti-
zation” menu.
Page 54 / 180
54
VPN: Remote Access to the Home Network
10.6
VPN: Remote Access to the Home Network
Via VPN (
see glossary
) a secure remote access to the network
of the FRITZ!Box can be established. The VPN solution for the
FRITZ!Box features the following:
The VPN solution for the FRITZ!Box is based on the IPSec
standard.
Computer-LAN coupling and LAN-LAN coupling: VPN con-
nections can be set up for individual remote computers
or even for remote networks.
A maximum of eight simultaneous active VPN connec-
tions are supported.
The configuration files for the VPN connections are creat-
ed using a separate program. The program is provided
free of charge and can be downloaded from the AVM web
site.
A free VPN client for individual computers can also be
downloaded from the AVM web site.
The AVM web site offers a Service Portal which presents com-
prehensive information on VPN in general and in connection
with the FRITZ!Box. Visit this portal to obtain more detailed in-
formation.
www.avm.de/en/vpn
Setting Up VPN in the FRITZ!Box
1.
Open the FRITZ!Box user interface.
2.
Enable the expert settings in the “System / Expert
Mode” menu.
3.
Select the “Internet / Permit Access” menu.
4.
Select the “VPN” page.
See the Online Help of the FRITZ!Box to set up VPN.
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DNSSEC: Security for DNS Queries
55
Supplementary Software for VPN
All of the information required for a VPN is saved in a configu-
ration file. The terminals involved in any VPN must receive
this file.
If an individual computer is integrated into a network via a
VPN, the computer must have a VPN client installed.
“Configure FRITZ!Box VPN Connection” Wizard
AVM provides the “Configure FRITZ!Box VPN” software
for creating configuration files. This program is a Wizard
that takes you step by step through the VPN configura-
tion. All of the necessary VPN settings, like the encryp-
tion method and access rules, are set automatically. The
resulting configuration files must be imported to the re-
spective terminals of the VPN tunnel. At the terminal
with the FRITZ!Box the configuration file is then imported
to the FRITZ!Box. The VPN parameters in these files can
be adjusted manually to connect to products by other
manufacturers.
The “FRITZ!VPN” VPN Client
AVM offers the “FRITZ!VPN” software as a VPN client.
Both the Wizard and the client can be downloaded free of
charge from the VPN Service Portal on the AVM web site:
www.avm.de/en/vpn
10.7
DNSSEC: Security for DNS Queries
DNSSEC is short for Domain Name System Security Exten-
sions. As the name says, this is an extension of DNS, the do-
main name system.
DNSSEC ensures that both the DNS server and the informa-
tion returned by the DNS server are authentic, or genuine.

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