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21 Local Services
344
Field
Negative Cache
Cache Size
Maximum TTL for Pos-
itive Cache Entries
Maximum TTL for Neg-
ative Cache Entries
Fallback interface to
get DNS server
IP address to use for
DNS/WINS server as-
signment
Funkwerk Enterprise Communications GmbH
Description
Select whether the negative dynamic cache is to be activated,
i.e. whether queried names for which a DNS server has sent a
negative response are stored as negative entries in the cache.
The function is activated by selecting
The function is enabled by default.
Enter the maximum total number of static and dynamic entries.
Once this value is reached, the dynamic entry not requested for
the longest period of time is deleted when a new entry is added.
Cache Size is reduced by the user, dynamic entries are deleted
if necessary. Static entries are not deleted. Cache Size cannot
be set to lower than the current number of static entries.
Possible values:
..
The default value is
.
Enter the value to which the TTL is to be set for a positive dy-
namic DNS entry in the cache if its TTL is
the value for Maximum TTL for Positive Cache Entries .
The default value is
Enter the value set to which the TTL is to be set in the case of a
negative dynamic entry in the cache.
The default value is
Only for DNS Server Configuration =
Select the interface to which a connection is set up for name
server negotiation if other name resolution attempts were not
successful.
The default value is
set up to the first suitable connection partner configured in the
system.
As DHCP Server
Select which name server addresses are sent to the DHCP cli-
ent if your device is used as DHCP server.
.
.
or its TTL exceeds
.
.
, i.e. a one-time connection is
R1xxx/R3xxx/R4xxx
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