I'd try to specify the channel target as "a.b.c.d:3280" without the "http://"; prefix. From the error it looks like the URL is being interpreted as a DNS name (rather than an IP). https://github.com/grpc/grpc/blob/master/doc/naming.md
On Monday, March 22, 2021 at 3:23:06 PM UTC+1 Christian Havel wrote: > Hi, > I would like to add the information, that the gRPC server is a console > application, not a ASP.NET Core application. > Christian > > Christian Havel schrieb am Montag, 22. März 2021 um 14:23:50 UTC+1: > >> Hi, >> >> I started to play around with gRPC. I have a very simple gRPC service in >> .NET Core 3.1. >> Then I wrote a .NET Core 3.1 client. Both applications are running on the >> same machine. >> Everything works fine. >> >> Now I try to connect my gRPC server from a .NET Framework 4.8 client >> (Windows Forms), that fails with the following exception: >> [image: grpcerror.PNG] >> >> I create the channel on the client like this: >> *var channel = new Channel($"http://{ip}:{Port}";, >> ChannelCredentials.Insecure);* >> * _serviceClient = new BridgeService.BridgeServiceClient(channel);* >> *var request = new HelloRequest {Name = "Franz"};* >> *var reply = _serviceClient.SayHello(request);* >> >> This is the server side: >> *var credentials = ServerCredentials.Insecure;* >> *var hostName = Dns.GetHostName();* >> >> * _port = new ServerPort(hostName, Port, credentials);* >> >> *_rpcServer = new Server* >> *{* >> * Services = {BridgeService.BindService(new >> BridgeServiceImpl())},* >> * Ports = { _port }* >> * };* >> >> *_rpcServer.Start();* >> >> Any idea what is missing? >> Thanks, >> Christian >> >> >> >> >> >> -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/e48461e9-27c7-48a6-8277-0dae7b749461n%40googlegroups.com.
