Siemens Gigaset A580IP Manual page 106

Preferred DNS server
Enter the IP address for the preferred DNS server. DNS (Domain Name System)
allows you to assign public IP addresses to symbolic names. The DNS server is
required to convert the DNS name into the IP address when a connection is being
established to a server.
You can specify your router's IP address here. The router forwards phone address
requests to its DNS server.
192.168.2.1 is the default.
Alternate DNS server (optional)
Enter the IP address for the alternate DNS server that should be used in situations
where the preferred DNS server cannot be reached.
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Select Set to save the changes.
Or
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Select Cancel to reject the changes.
After you have changed the IP configuration the base station is rebooted. You will
be logged off by the Web configurator. The Login Web page is displayed again after
the reboot.
Allowing access from other networks
The default setting for your phone is set so that you can only access your phone's
Web configurator via a PC that is in the same local network as your phone. The sub-
net mask of the PC must match that of the phone.
You can also allow access from PCs in other networks.
Warning
Expansion of access entitlement to other networks increases the risk of unauthor-
ized access. It is therefore recommended that you deactivate remote access again
if you no longer require it.
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Open the following Web page: Settings
Area: Remote Management
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Activate the Yes option to permit access from other networks.
To deactivate remote access, activate the No option Access is then limited to PCs
in your own local network.
Access to the Web configurator services from other networks is only possible if your
router is set accordingly. The router must pass on the service requests from "out-
side" to Port 80 (default port) of the phone. Please also read the user guide for your
router.
To establish a connection, the public IP address or the DNS name of the router and,
where applicable, the port number on the router must be indicated in the Web
browser of the remote PC.
Setting the phone with the PC
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IP Configuration.
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