[cisco-bba] NAS-port-id and L2TP

[MKS]

Hello list

We are running several LACs and LNSs using PPPoX in a vdpn setup.
Currenty we are using the "vendor-tag circuit-id service" command to
get the location (DSLAM box,card,line) of xDSL users into the radius
requests and log get request with the login information.

This is working used fine for our customers that we terminate. The
problem is that this information is not forwarded to the LNS, (if we
are no tterminating the user).

If I do "sh aaa user xxx" where xxx is the uniq id for a user
terminated on LNS (L2TP forwarded)

On the LAC I get:

---skip---
 Authen: service=PPP type=PAP method=RADIUS
Kerb: No data available
Meth: No data available
Preauth: No Preauth data.
General:
  Unique Id = 00000200
  Session Id = 00000386
  Attribute List:
    2392F160 0 00000001 port-type(189) 4 PPPoE over ATM
    2392F170 0 00000009 interface(185) 14 2/0/0/127.1100
    2392F180 0 00000009 nas-connect-info(31) 15 1024_AutoDetect
    2392F190 0 00000009 client-mac-address(56) 14 00a0.xxxx.xxxx
---skip---

On the LNS I get:

---skip---
General:
  Unique Id = 00558B0B
  Session Id = 00AA7484
  Attribute List:
    21AAE384 0 00000001 port-type(157) 4 Virtual Terminal
    21AAE398 0 00000009 interface(153) 16 Uniq-Sess-ID2149
    21AAE3AC 0 00000009 nas-connect-info(22) 17 company_BRAS
---skip---


The question is:
    Is this feature that i'm asking for available in some software for
the cisco 7200 platform?
    Any documation regarding this would be aperiated

    Is it possible to somehow send VSA attributes via L2TP sessions?

I have tried both 12.2-31.SB and 12.4-4 software and no luck.

Regards
MKS