ZyXEL Communications VSG-1200 V2 9.1.4.2 Vendor Specific Attribute

VSG-1200 V2 User’s Guide

Figure 31 Accounting Usage Time

Time

Time to Finish				Accumulation
		Log in			Log in
	A			A
		Log out			Log out
	B			B
		Log in			Log in
	C			C
		Log out			Log out
	D			D
		Log in			Log in
	E			E
		Log out			Log out
Usage Time = A + B + C + D + E			Usage Time = A + C + E

9.1.4.2 Vendor Specific Attribute

With RADIUS authentication, you can define vendor specific attributes (VSAs) in addition to the set of standard RADIUS attributes defined in RFC 2865 and RFC 2866. A VSA is an attribute-value pair that is sent between a RADIUS server and the VSG. It is necessary you define the VSAs on the RADIUS sever if you want the VSG to perform the following:

•Limit Download bandwidth per subscriber

•Limit Upload bandwidth per subscriber

•Limit Total traffic bandwidth allowed per subscriber

•Specify advertising web site per subscriber

•Enable/disable SMTP redirect

Note: Before you can make use of these functions on the VSG, configure the proprietary VSAs on the RADIUS server. Refer to the documentation that comes with your RADIUS server for more information.

See Appendix D on page 242 for more information on the VSAs.

9.2 Authentication Configuration

To configure the subscriber authentication method, click System Settings and Authentication to display the screen as shown next.

Chapter 9 Authentication 82