php radius client (mount packet data)

Hello !! Based on 'Pure PHP radius class' (http://developer.sysco.ch/php/) i´m trying to implement "disconnect-packet" like this command: echo "User-Name := xxxxxx" | radclient -x 111.222.333.444 disconnect <secret> freeradius recognizes that packet are "disconnect-request" but i think checksum of packet are incorrect, can someone look and try to discover the error ?! attached class, my changes are commented with //AlexandrE thanks !!! -- Sds. Alexandre Jeronimo Correa Onda Internet - http://www.ondainternet.com.br OPinguim Hosting - http://www.opinguim.net Linux User ID #142329 UNOTEL S/A - http://www.unotel.com.br