Hello Everyone, I want to use unlang to trim the Calling-Station-Id coming from the NAS to only include the MAC address. I know what to do, and how to write the unlang lines. But, I'm not sure where those lines should go. At the moment, I put them in my virtual server's "preacct" section, like so (ugly wrapping): preacct { preprocess if (Calling-Station-Id =~ /(pppoe )([0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f])(.)/) { update request { Calling-Station-Id := "%{2}" } } acct_unique suffix } (yes, I could probably optimize the regex) As far as I can see, this is working. The "callingstationid" field in the radacct table now only contains the MAC address. Interim accounting updates appear to be updating the rows properly as well. I don't see any obvious problems. Should I be putting the Calling-Station-Id rewriting in other sections as well? I was thinking perhaps the "authorization" and/or "post-auth" sections should have it, too. Thanks in advance. Regards, Ranbir -- Kanwar Ranbir Sandhu Linux 2.6.27.30-170.2.82.fc10.x86_64 x86_64 GNU/Linux 10:41:48 up 6 days, 21:12, 4 users, load average: 0.81, 0.61, 0.51