diff --git a/ttcn3-sgsn-test/osmo-sgsn.cfg b/ttcn3-sgsn-test/osmo-sgsn.cfg
index 20dea6e1..72ca46d1 100644
--- a/ttcn3-sgsn-test/osmo-sgsn.cfg
+++ b/ttcn3-sgsn-test/osmo-sgsn.cfg
@@ -40,6 +40,44 @@ log stderr
  logging level lm3ua notice
  logging level lmgcp notice
 !
+log file sgsn-raw.log
+  logging filter all 1
+  logging color 0
+  logging print category 1
+  logging timestamp 1
+  logging print file 1
+  logging level all everything
+  logging level mm debug
+  logging level pag notice
+  logging level meas notice
+  logging level ref notice
+  logging level gprs debug
+  logging level ns info
+  logging level bssgp info
+  logging level llc debug
+  logging level sndcp debug
+  logging level slhc notice
+  logging level ranap info
+  logging level sua info
+  logging level v42bis info
+  logging level lglobal info
+  logging level llapd notice
+  logging level linp notice
+  logging level lmux notice
+  logging level lmi notice
+  logging level lmib notice
+  logging level lsms notice
+  logging level lctrl notice
+  logging level lgtp debug
+  logging level lstats notice
+  logging level lgsup debug
+  logging level loap notice
+  logging level lss7 notice
+  logging level lsccp info
+  logging level lsua notice
+  logging level lm3ua notice
+  logging level lmgcp notice
+!
 stats interval 5
 !
 line vty