Thanks Alan, I have figured out the problem.
C.F. Yeung wrote:So... you didn't follow my instructions. Rather than READING the
> Have changed the unlang as follow.
>
> update request {
> NAS-Identifier := "new-nas-identifier"
> }
>
> Tried put it under authorize, pre-proxy or post-proxy, nothing changed.
documentation, you tried a bunch of random things.
See the FAQ for "it doesn't work".
See "man unlang" for how to update proxied requests.
This is documented.
No, I won't cut & paste the relevant documentation here.