Replace-User-Name (GNU Radius Reference Manual)

13.3.21 Replace-User-Name

ATTRIBUTE Replace-User-Name 2001 string

VALUE Replace-User-Name No 0
VALUE Replace-User-Name Yes 1

Use this attribute to modify the user name from the incoming packet. The Replace-User-Name can reference any attributes from both LHS and RHS pairlists using attribute macros (Macro Substitution).

For example, the users entry

guest NAS-IP-Address = 11.10.10.11,
 Calling-Station-Id != ""
 Auth-Type = Accept
 Replace-User-Name = "guest#%C{Calling-Station-Id}",
 Service-Type = Framed-User,
 Framed-Protocol = PPP

allows the use of PPP service for user name guest, coming from NAS ‘11.10.10.11’ with a nonempty Calling-Station-Id attribute. A string consisting of a ‘#’ character followed by the Calling-Station-Id value is appended to the user name.