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Configuration Examples
Install the IP network protocol and a Web browser for every workstation computer
which is to have access to the OpenCom 100 network features.
8.3.1 DNS Name Resolution
In a serverless LAN, the internal DNS name resolution is performed by the
OpenCom 100. If you type the string "host.domain" into your browser, a DNS
request is sent to the OpenCom 100 IP address. The OpenCom 100 responds with
the correct IP address, so that the Configurator home page can be called up.
In a peer-to-peer network (Windows network), the workstations each have a name
which is displayed in the network environment. These NetBIOS names can differ
from the DNS names assigned to the workstations by the OpenCom 100. The
OpenCom 100 is not visible in the network environment.
8.3.2 Internet Access
If access to an ISP has been configured on the OpenCom 100, the OpenCom 100
can be operated as an Internet access server without any additional configuration
of the workstations. When you want to see a Web page, you simply type the URL
(uniform resource locator; Internet address; "http://...") in your browser. In a
serverless LAN, the OpenCom 100 is configured as a DNS server and default
gateway. The workstation computer therefore sends its Internet connection
request to the OpenCom 100.
In almost all cases, the request will contain a DNS name which is unknown in the
internal network. When you type a URL into your browser, the OpenCom 100
receives the request to find the corresponding IP address. If the name is unknown
in the LAN, the request is forwarded to an ISP's external DNS server.
Note: Workstation computers automatically add a domain
name to URLs without a dot. You specify this domain name
in the Configurator. For example, if you have configured
"firm.co.uk" as the domain name, an access request for
"www.firm.co.uk" will be interpreted as a local DNS request
which does not lead to the establishment of an Internet con-
nection. For this reason, you should choose a name which is
not used in the Internet as the domain name ("firm-open-
com.co.uk" for example).
OpenCom 100 in a Serverless LAN
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