CODEWITHSUNDEEP
network-programmingdockervpndocker-network
phumberdroz
phumberdroz

Reputation: 55

Docker Containers with different Network Interface

Problem: I want to have multiple VPN Servers running in Docker containers each with there own public IP.

With the -p parameter I am able to connect to each one separately but the Public ip that I see is the eth0 interface not the one that I want it to be (eth0:1) so how can I create a new docker0 interface that uses eth0:1 as interface for the traffic?

Best regards and thanks.

Upvotes: 0

Views: 1126

Answers (1)

Navin a.s
Navin a.s

Reputation: 416

Docker doesn't uses network outside of it . For the connection between the host to container from outside the world use port bindings. Expose the port in Dockerfile when creating docker image Expose Docker Container to Host : Exposing container is very important for the host to identify in which port container runs. -p in docker run command used to expose the ports. Syntax : docker run -p host_ip:host_port:container_port image_name e.g., docker run -itd -p 192.168.134.122:1234:1500 image_name
This binds port 1500 of the container to port 1234 on 192.168.134.122 of the host machine.
Use Iptables to view the network process – iptables -L -n -t nat

  Now the request send to host_ip (192.168.134.122) and port (1243) is redirect to container with ip (172.17.0.2) and port (1500).

Upvotes: 1

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