ipparam is the only way a system administrator has of passing arbitrary
information from options files to scripts, and this may be useful during
auth-up in particular. (If upstream pppd had support for an auth-fail
script, it could be useful there too.)
Signed-off-by: Jaco Kroon <jaco@uls.co.za> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>