RADIUS Filter-Id question

Hello,

I saw an example of doing just what I want in the wiki, but using hotspot, and I’m authenticating my customers through MAC

I’d like to redirect all the traffic from customers that are “suspended” to a specific webpage. I thought doing that using the Filter-Id Attribute from my RADIUS server, but I’m a little confused about NAT chains and Filter chains … What is allowed in this field ? Do I have to specify an existing filter chain in this field ? Is it possible to make a Filter chain jump to a NAT chain ?

Thanks in advance,