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Re: binding a socket to a specific interface

To: tech-net%netbsd.org@localhost
Subject: Re: binding a socket to a specific interface
From: Roy Marples <roy%marples.name@localhost>
Date: Wed, 20 Jun 2018 23:47:06 +0100

On 20/06/2018 21:33, Edgar Fuß wrote:

filter out packets from the "wrong" interface at the application level.

But I need to /send/ from a particular interface!

See ip(4) which describes a CMSG instruction called IP_PKTINFO where youcan set ipi_ifindex to the index of the outbound interface.

Roy

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References:
- binding a socket to a specific interface
  - From: Edgar Fuß
- Re: binding a socket to a specific interface
  - From: Ken Hornstein
- Re: binding a socket to a specific interface
  - From: Ken Hornstein
- Re: binding a socket to a specific interface
  - From: Edgar Fuß

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