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Dynamic DNS: Name instead of IP Address
FRITZ!Box 6490 Cable
71
13.3
Dynamic DNS: Name instead of IP Address
Dynamic DNS is an Internet service that makes it possible for
the FRITZ!Box to remain accessible from the Internet at all
times under a fixed name, even though the public IP address
changes.
Dynamic DNS can be used as an alternative to MyFRITZ!. Both
services can be used in parallel.
You must register with a dynamic DNS provider to use this
service. When you register, you agree on the fixed name (do-
main name) at which your FRITZ!Box should be accessible
from the Internet. You also define a user name and password.
Every time the IP address changes, the FRITZ!Box transmits
the new IP address to the dynamic DNS provider in the form of
an update request. Then the domain name is assigned to the
current IP address by the dynamic DNS provider.
Setting Up Dynamic DNS in the FRITZ!Box
1.
Open the FRITZ!Box user interface; see
page 25
.
2.
Enable the advanced view.
3.
Select the “Internet / Permit Access” menu.
4.
Select the “Dynamic DNS” page and set up dynamic
DNS. See the Help available in the FRITZ!Box user inter-
face for more information.
13.4
Access from the Internet via HTTPS, FTP and FTPS
Over the Internet it is possible to access the user interface of
the FRITZ!Box. With a laptop, smartphone or tablet PC you can
configure settings in the FRITZ!Box user interface.
Requirements for Access over the Internet
•
Access to the user interface: Every user who would like
to access the FRITZ!Box externally from the Internet re-
quires a FRITZ!Box user account which is authorized for
access from the Internet.
Page 72 / 172
FRITZ!Box 6490 Cable
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Access from the Internet via HTTPS, FTP and FTPS
•
Access to storage: Every user who would like to access the
storage of the FRITZ!Box externally from the Internet re-
quires a FRITZ!Box user account with the right to access
the contents on the storage media from the Internet.
•
The protocols for the desired access must be enabled in
the FRITZ!Box.
HTTPS, FTP and FTPS
The protocols HTTPS, FTP and FTPS are used for access over
the Internet.
•
HTTPS (Hypertext Transfer Protocol Secure)
HTTPS is an Internet protocol for bug-proof communica-
tion between the web server and the browser in the
World Wide Web.
Enable this protocol to allow access to the FRITZ!Box
from the Internet.
•
FTP (File Transfer Protocol)
FTP is a network protocol for transmitting files in IP net-
works.
Enable this protocol to allow access by FTP to the
FRITZ!Box storage media from the Internet.
•
FTPS (FTP over SSL)
FTPS is a method for encrypting the FTP protocol.
Enable this protocol to secure transmission over FTP.
Enabling HTTPS, FTP and FTPS in the FRITZ!Box
1.
Open the FRITZ!Box user interface; see
page 25
.
2.
Enable the advanced view.
3.
Select the “Internet / Permit Access” menu.
4.
Select the “FRITZ!Box Services” page and enable the
protocols you need. See also the Help on the user inter-
face.
Page 73 / 172
Prioritization: Right of Way for Internet Access
FRITZ!Box 6490 Cable
73
13.5
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”.
Network applications and network devices are assigned to
the categories using rules.
Real-time Applications
This category is suitable for applications with high demands
on transmission speed and reaction times (for example, Inter-
net telephony, IPTV, video on demand).
•
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 will be trans-
mitted 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.
Page 74 / 172
FRITZ!Box 6490 Cable
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Prioritization: Right of Way for Internet Access
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
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 techniques are used in the FRITZ!Box to send
data packets according to their prioritization:
•
Change in the order in which packets are sent to the
Internet (upstream direction)
The order of the packets the FRITZ!Box receives from the
Internet (downstream direction) cannot be changed.
Page 75 / 172
VPN: Remote Access to the Home Network
FRITZ!Box 6490 Cable
75
•
Discard low-priority packets in order to ensure the trans-
mission of higher-priority packets. This technique 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.
Configuring Prioritization in the FRITZ!Box
1.
Open the FRITZ!Box user interface; see
page 25
.
2.
Enable the advanced view.
3.
Configure prioritization in the “Internet / Filters / Prioriti-
zation” menu.
13.6
VPN: Remote Access to the Home Network
Via a VPN (Virtual Private Network) a secure remote access to
the network of the FRITZ!Box can be established.
VPN in the FRITZ!Box
IPSec
VPN in the FRITZ!Box is based on the IPSec
standard.
Computer-LAN
Computer-LAN linkup: VPN connections can
be configured for individual remote com-
puters.
LAN-LAN
LAN-LAN linkup: VPN connections can be
configured for remote networks.
Eight simultaneous
connections
FRITZ!Box supports a maximum of eight si-
multaneous VPN connections.

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