Let me re-organised the question. I have used a similar docker-compose yaml file as below. version: "3" services: app: build: ./app networks: - frontend

networks: frontend: driver: bridge ipam: config: - subnet: 172.38.3.0/24

A network interface eth0 will be created automatically inside the dock container APP. I can connect to the network of the host through eth0.

Now I want to create other virtual network interfaces inside the docker container APP, such as veth1, veth2. I want to let the packets through veth1/veth2 can access the host network. Like the below,

ping -I veth1 host-network-ip

by the way, I have tried to define one more network in the yaml and attached to docker container APP. but unfortunately, the network interface name 'eth1' inside docker container could not be customized. I need to specify the network interface name.

Is it possible to let it work? if yes, can you please help to explain how to do? Thank you very much!

Let me re-organised the question. I have used a similar docker-compose yaml file as below.

version: "3"
services:
  app:
    build: ./app
    networks:
      - frontend
 
networks:
  frontend:
     driver: bridge
     ipam:
       config:
         - subnet: 172.38.3.0/24

A network interface eth0 will be created automatically inside the dock container APP. I can connect to the network of the host through eth0.

Now I want to create other virtual network interfaces inside the docker container APP, such as veth1, veth2. I want to let the packets through veth1/veth2 can access the host network. Like the below,

ping -I veth1 host-network-ip

by the way, I have tried to define one more network in the yaml and attached to docker container APP. but unfortunately, the network interface name eth1 inside docker container could not be customized. I need to specify the network interface name.

Is it possible to let it work? if yes, can you please help to explain how to do? Thank you very much!

I have a network interface eth0(attach one docker network,created by docker automatically) inside my docker container, through eth0, I can connect to the network of the host.

Now I want to create other virtual network interfaces inside the docker container, such as veth1, veth2. I want to let the packets through veth1/veth2 can access the host network. Like the below,

ping -I veth1 host-network-ip

Is it possible to let it work? if yes, can you please help to explain how to do? Thank you very much!

Let me re-organised the question. I have used a similar docker-compose yaml file as below. version: "3" services: app: build: ./app networks: - frontend

networks: frontend: driver: bridge ipam: config: - subnet: 172.38.3.0/24

A network interface eth0 will be created automatically inside the dock container APP. I can connect to the network of the host through eth0.

Now I want to create other virtual network interfaces inside the docker container APP, such as veth1, veth2. I want to let the packets through veth1/veth2 can access the host network. Like the below,

ping -I veth1 host-network-ip

by the way, I have tried to define one more network in the yaml and attached to docker container APP. but unfortunately, the network interface name 'eth1' inside docker container could not be customized. I need to specify the network interface name.

Is it possible to let it work? if yes, can you please help to explain how to do? Thank you very much!