Aastra OpenCom 131 User Guide - Page 95
DNS Name Resolution, 8.3.2 Internet Access, Workstation computers automatically add a domain
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Configuration Examples OpenCom 100 in a Serverless LAN 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 connection. For this reason, you should choose a name which is not used in the Internet as the domain name ("firm-opencom.co.uk" for example). 93