DNS Configuration
You can
provide a virtual DNS address that can be backed up by the redundant device. If
the device fails, DNS requests will be handled seemlessly and transparently by
the redundant device.
The DNS Configuration window
contains the following fields: Virtual DNS Address – The DNS
address of the main device. Redundant DNS Address – The
DNS address of the redundant device. DNS Response TTL – The
number of seconds that DNS responses are cached. The default setting is 0, which
means the response is not cached. Two Records in DNS Reply – Enables and disables the return of two A records in the DNS response. Enable returns two A records, disable returns one.