.TH CHECKRAD 5 "13 January 2006"
.SH NAME
checkrad -- See if a user is (still) logged in on a certain port.
.SH SYNOPSIS
.B checkrad
.RB [ -d ]
.I nas-type nas-ip nas-port login session-id
.SH DESCRIPTION
\fBCheckrad\fP is used by the radius server to check if its idea of a user logged in
on a certain port/NAS is correct if a double login is detected.

Returns: 0 = no duplicate, 1 = duplicate, >1 = error.

.SH OPTIONS

.IP -d
Enable printing of debugging information.

.IP nas-type
Type of port/NAS. Can be one of:

.RS
.IP \(bu
ascend
.IP \(bu
bay
.IP \(bu
cisco
.IP \(bu
cisco_l2tp
.IP \(bu
computone
.IP \(bu
cvx
.IP \(bu
digitro
.IP \(bu
dot1x
.IP \(bu
livingston
.IP \(bu
max40xx
.IP \(bu
mikrotik
.IP \(bu
mikrotik_snmp
.IP \(bu
multitech
.IP \(bu
netserver
.IP \(bu
other
.IP \(bu
pathras
.IP \(bu
patton
.IP \(bu
portslave
.IP \(bu
pr3000
.IP \(bu
pr4000
.IP \(bu
redback
.IP \(bu
tc
.IP \(bu
usrhiper
.IP \(bu
versanet
.P
The "other" type cause \fBcheckrad\fP to skip any check and always returns 1.
.RE


.IP nas-ip
IP address of the NAS to check.

.IP nas-port
The NAS port to check (may be ignored by some nas-type).

.IP login
The login name to check.

.IP session-id
Session to check. (actually ignored by all nas-type)

.SH SEE ALSO
radiusd(8)

.SH AUTHOR
Written by Miquel van Smoorenburg, miquels@cistron.nl.

This manual page was written by Marco Nenciarini <mnencia@debian.org> for
the Debian project (but may be used by others).