gRPC binding the socket to a particular interface or device (Something like SO_BINDTODEVICE)

[Abhi Arora]

I have a Linux Embedded Machine with gRPC cross-compiled for it. I am looking to create multiple instances of gRPC each bind to a particular interface or device. Linux POSIX socket provides SO_BINDTODEVICE option but I am not sure if gRPC has any application layer method or function to achieve it. I tried other forums but couldn't find something useful.

Is there any workaround to achieve the same thing?

Please help me.

[Thomas Mercier]

Have you tried listening on the address associated with each of the interfaces instead of 0.0.0.0 as in here?

https://github.com/grpc/grpc/blob/v1.27.0/examples/cpp/route_guide/route_guide_server.cc#L176

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[Abhi Arora]

Pardon but I forgot to mention my setup is a gRPC client and the code you shared belongs to server sample.

[Abhi Arora]

My application communicates with gRPC server. Is there any way for gRPC client to bind to a particular interface or device? Or can I bind to particular IP? Will it work? Is there any way?

Linux POSIX socket provides SO_BINDTODEVICE option but I am not sure if gRPC has any application layer method or function to achieve it. I tried other forums but couldn't find something useful.

Is there any workaround to achieve the same thing?

On Tuesday, February 25, 2020 at 11:29:45 AM UTC+5:30, Abhi Arora wrote:

[yas...@google.com]

gRPC C++ does not have any API to allow the client to bind to a specific IP address at the moment.

[Abhi Arora]

Okay. So we don't have options to set "SO_BINDTODEVICE " or bind to a particular IP in C++ for gRPC Client? Both are not available? How about gRPC Python Client? We can think to move to gRPC python client.

[Abhi Arora]

Hello,
Any possible solution or any hack to achieve the same thing?

On Tuesday, February 25, 2020 at 11:29:45 AM UTC+5:30, Abhi Arora wrote:

[Fazil Manzoor]

Facing same issue on python grpc client and server