IP Address  <address> 

IP address of the Bearer.
This is the base address, and the address provided to each subscriber offset from this base by the subscriber offset within the database. Maybe be a v4 or v6 address. If two addresses (e.g. IPv4v6) are provided, there should be one of each type.

Gx, Gxx, Rx:

  Used as the value for either Framed-IP-Address AVP or Framed-IPv6-Prefix AVP.