Fix remote access

tests/Jellyfin.Networking.Tests/NetworkParseTests.cs

@@ -514,5 +514,25 @@ namespace Jellyfin.Networking.Tests
 
             Assert.Equal(intf, result);
         }
+
+        [Theory]
+        [InlineData("185.10.10.10,200.200.200.200", "79.2.3.4", false, true)] // whitelist
+        [InlineData("185.10.10.10", "185.10.10.10", false, false)] // whitelist
+        [InlineData("185.10.10.10", "79.2.3.4", true, false)] // blacklist
+        public void TestRemoteAccess(string addresses, string remoteIp, bool blacklist, bool denied)
+        {
+            // Comma separated list of IP addresses or IP/netmask entries for networks that will be allowed to connect remotely.
+            // If left blank, all remote addresses will be allowed.
+            var conf = new NetworkConfiguration()
+            {
+                EnableIPV4 = true,
+                RemoteIPFilter = addresses.Split(","),
+                IsRemoteIPFilterBlacklist = blacklist
+            };
+
+            using var nm = new NetworkManager(GetMockConfig(conf), new NullLogger<NetworkManager>());
+
+            Assert.NotEqual(nm.HasRemoteAccess(IPAddress.Parse(remoteIp)), denied);
+        }
     }
 }