Devolo MicroLink dLAN ADSL Modem User Manual page 38

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Router configuration
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The default setting for the idle time filters (see illustration) is optimal for most
applications. Please note: By permitting incoming data, your configured idle
time will virtually never elapse due to random incoming data packets. If you
have flat-rate service from your Internet provider (unlimited online time
without additional charges), you obviously do not have to worry about such
"inadvertent" connections to the Internet. However, if your Internet connec-
tion is billed by connection time, we recommend keeping the default setting
for the idle time filter.
DNS Proxy
The Domain Name Service protocol converts Internet names (also called URL
addresses, e.g. www.british-telecom.co.uk) into IP addresses (e.g.
212.184.6.56).
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'Inbound Traffic Only'
'Outbound Traffic Only' or
'Inbound and Outbound Traffic'.
'Filter Details': Define the filters at the protocol level here by specifying
a protocol and a port. Select the appropriate 'Action' to add or remove a
protocol. The following protocols have been preset:
TCP protocol with number 6
UDP protocol with number 17
ICMP protocol with number 1
'DNS Proxy': Select 'Enabled' to use the DHCP proxy.
Select 'Auto Discovery' to use the DNS addresses provided when esta-
blishing the Internet connection.
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