The IP addresses are entered in the usual dotted quad notation, for example, 192.168.1.2.

Most hosts have a single IP address and therefore a single A record.

Routers (or hosts acting as routers) have multiple IP addresses, and are commonly given more than one A record. Alternatively, each interface of the router can be given a name of its own, each with one A record.

NameSurfer can be set up to allocate IP addresses automatically when new hosts are added to the DNS.

By default, whenever an A record is added or removed, NameSurfer will automatically attempt to add or remove the corresponding reverse mapping. You can choose not to create the reverse map automatically by unchecking the checkbox controlling automatic reverse map creation.