Reverse Lookup Zones - peplink Balance One User Manual

USER MANUAL
Peplink Balance Series

15.4 Reverse Lookup Zones

Reverse lookup Zones can be configured in Network > Inbound Access > DNS Settings.
Reverse lookup refers to performing a DNS query to find one or more DNS names associated with a
given IP address.
The DNS stores IP addresses in the form of specially formatted names as pointer (PTR) records using
special domains/zones. The zone is in-addr.arpa.
To enable DNS clients to perform a reverse lookup for a host, perform two steps:

Create a Reverse Lookup Zone that corresponds to the subnet network address of the host.
In the Reverse Lookup Zone, add a pointer (PTR) resource record that maps the host IP address
to the host name.

Click the New Reverse Lookup Zone button and enter a Reverse Lookup Zone Name. If you are
delegated the subnet 11.22.33.0/24, the Zone Name should be 33.22.11.in-arpa.addr.PTR
records for 11.22.33.1, 11.22.33.2, ... 11.22.33.254 should be defined in this zone where the Host
IP Numbers are 1, 2, ... 254 respectively.
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