[ILUG] IP aliases in different subnets

[Dave Wilson]

> However.. maybe you're asking the wrong question. What exactly do you want
> to do?

Could be :) Here's an example (applications may change):

* I want sendmail to bind to address 1.2.3.4, so that outgoing connections
  have a source of 1.2.3.4.

* I want named to bind to address 5.6.7.8, so that outgoing connections
  have a source of 5.6.7.8.

The potential problem i might be inventing is that if the machine has
a default gateway on the same subnet as 1.2.3.4, will packets with
a source address 5.6.7.8 - effectively a different LAN - ever reach that
default gateway? Is it sufficient that the linux box knows that there
is *one* way out, even if it's on a different subnet?

Cheers,
Dave

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