diff --git a/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl b/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl
index 5d8ba90..825298d 100644
--- a/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl
@@ -18,6 +18,8 @@
 ! asp asp-clnt-OsmoSGSN-A 2905 0 m3ua
 !  local-ip ${sgsn.ip_address.addr}
 !  remote-ip stp.ip_address.addr
+!  role asp
+!  sctp-role client
 ! as as-clnt-OsmoSGSN-A m3ua
 !  asp asp-clnt-OsmoSGSN-A
 !  routing-key 3 0.23.4