Add test with proxy and openssl server
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 48e5b03..2078ccd 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -2273,6 +2273,15 @@
             -s "Extra-header:" \
             -c "HTTP/1.0 200 OK"
 
+needs_more_time 2
+run_test    "DTLS proxy: 3d, max handshake, openssl server" \
+            -p "$P_PXY drop=5 delay=5 duplicate=5 protect_hvr=1" \
+            "$O_SRV -dtls1 -mtu 2048" \
+            "$P_CLI dtls=1" \
+            0 \
+            -s "Extra-header:" \
+            -c "HTTP/1.0 200 OK"
+
 # Final report
 
 echo "------------------------------------------------------------------------"