Dns Name Resolution; Internet Access - Aastra OpenCom 510 User Manual

Configuration Examples
the OpenCom 510 via DHCP (dynamic host configuration protocol). In this ope-
rating mode, an IP address space reserved for such networks is used:
192.168.99.254
255.255.255.0
192.168.99.254
192.168.99.254
Install the IP network protocol and a Web browser for every workstation which is
to have access to the OpenCom 510 network features.

9.3.1 DNS Name Resolution

In a serverless LAN, the internal DNS name resolution is performed by the
OpenCom 510. If you type the string "host.domain" into your browser, a DNS
request is sent to the OpenCom 510 IP address. The OpenCom 510 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 510. The
OpenCom 510 is not visible in the network environment.

9.3.2 Internet Access

If access to an ISP has been configured on the OpenCom 510, the OpenCom 510
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 ser-
verless LAN, the OpenCom 510 is configured as a DNS server and default gateway.
The workstation therefore sends its Internet connection request to the
OpenCom 510.
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 510
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.
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OpenCom 510 in a Serverless LAN
OpenCom 510 IP address
Network mask (class C network)
DNS server IP address
Default gateway IP address