In v2 I do: detail { ... header = "%t\t%{Client-IP-Address}" ... } which gives e.g. Wed Sep 9 16:55:16 2015 127.0.0.1 ... in the detail file. Building a config for v3, the same gives: Wed Sep 9 16:55:16 2015127.0.0.1 i.e. the \t is silently discarded and expands to nothing. I can get around it by putting a physical tab char in the config, but is this intended? Have stared at the radius_xlat code for too many minutes and figured it'd be quicker to ask... :) Cheers, Matthew -- Matthew Newton, Ph.D. <mcn4@le.ac.uk> Systems Specialist, Infrastructure Services, I.T. Services, University of Leicester, Leicester LE1 7RH, United Kingdom For IT help contact helpdesk extn. 2253, <ithelp@le.ac.uk>