RFC 2865 Page 24 string 1-253 octets containing binary data (values 0 through 255 decimal, inclusive). Strings of length zero (0) MUST NOT be sent; omit the entire attribute instead. If your NAS requires zero length strings then its breaking the RADIUS protocol standard. -Arran On Jun 27, 2011, at 9:10 AM, Alexander Kubatkin wrote:
Hello,
Need to send empty value in attribute via coa request for clear any value in current state of attribute and clear attribute itself:
# /bin/echo "Context-Name = local, Qos-Policing-Profile-Name='' , Qos-Metering-Profile-Name='' , Framed-IP-Address = yy.yy.yy.yy" | /usr/local/bin/radclient -x -t 3 -c 1 -r 2 -p 4 xx.xx.xx.xx:3799 coa xxxxxx Sending CoA-Request of id 121 to xx.xx.xx.xx port 3799 Context-Name = "dhcp" Qos-Policing-Profile-Name = "" Qos-Metering-Profile-Name = "" Framed-IP-Address = yy.yy.yy.yy rad_recv: CoA-NAK packet from host xx.xx.xx.xx port 3799, id=121, length=32 Error-Cause = Missing-Attribute Event-Timestamp = "Jun 27 2011 10:48:37 MSD"
Missing-Attribute is because NAS doesn't receive two attributes Qos-Policing-Profile-Name and Qos-Metering-Profile-Name because radclient doesn't really send it or filtered it, i.e. NAS only received Context-Name and Framed-IP-Address, is this possible to send empty value?
-- Alexander Kubatkin - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
Arran Cudbard-Bell a.cudbardb@freeradius.org RADIUS - Half the complexity of Diameter