Send certain extra RADIUS attributes in an Access-Accept message

Some customers would like to send the (Dualshield) Group id as an attribute, to be used when defining access control within the customers VPN gateway.

This is a typical requirement in RADIUS authentication. Next we will show you how to do it.

Create a RADIUS attribute (RADIUS -> Radius Attribute -> Create)

In the field "Maps To:", write groups.id.join(','). If you are favour of name, you can use groups.name.join(','). Also, check the box "return Response".

Now, add Radius attributes to a specified group(or user).

For example, we use (check) the one we just created.

Here we use NTRadPing as a radius client to do the test

As you can see the attribute in response Filter-Id=3. You can double confirm it with WireShark.

If you change the mapping as groups.name.join(','), then the result will be Filter-Id=aaa.

What if this user belongs to two groups, for instance aaa and ccc? The result will be Filter-Id=aaa,ccc.

Furthermore, if you only add the attribute on group aaa (not on ccc) and you want to only return group name aaa, then use the following syntax.

nestedGroups.find{it.radiusAttributes.any{ att-> att.name=='Filter-Id'}}.name