Commissioning Instructions

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Siemens Web server OZW772... V5.2 CE1C5701en
Building Technologies Communications 2014-10-15
8.1.3 Access via direct connection
An appropriate connection is required (e.g. DSL router) for a direct connection via
Internet. Setting up Internet access is not described here. The web server is not
suitable for connecting directly to the Internet, since it does not have a firewall. This
is normally a component of the DSL router.
The examples here were created using the Siemens Gigaset SX763 router
Workflows, terms, and functions vary by product used, the principle remains the
same for all products. The router must support NAT/PAT, Dynamic DNS and, as
an option, DHCP.
The web server supports HTTPS (Hyper Text Transfer Protocol Secure).
Web operating pages are transmitted secured and encrypted. The user is
responsible for the use of unencrypted HTTP connection.
Use a VPN connection is accessing via a fixed IP address.
IP address, subnet mask and DHCP are set up under Local Network in addition to
other settings:
The IP address router is fixed.
The subnet mask defines the size of the subnet.
The router assigns the DHCP clients (e.g. the PC on the local area network) an
IP address from a selecting setting range ("First issued IP address" through
"Last issued IP address") if set as DHCP server.
The "Standard gateway" is typically the router's IP address as well.
The "Lease time" defines how long a client maintains the IP address received
from the DHCP server (the DHCP server regularly renews the client IP
addresses).
In the example, the router has a set IP address of 192.168.2.1 and receives subnet
mask 255.255.255.0. As a DHCP server, it renews the IP addresses of the DHCP
clients every 30 (in the above example) minutes. DHCP clients are assigned
addresses from a range of 192.168.2.100 through 192.168.2.199. The router is the
gateway between LAN and Internet.
Internet connection
Notes
Local area network
(LAN)