Re: Source IP selection

From: John Levine <johnl_at_iecc.com>
Date: Thu, 16 Feb 2023 22:12:34 UTC
It appears that Paul Mather <paul@gromit.dlib.vt.edu> said:
>> My VPS provider (Linode) gave me a secondary address so my two nodes
>> can talk to each other without accruing charges. Note that:
>> 
>> - it really is an alias on the same interface, *not* a VLAN
>> 
>> - it is not a publicly routable address (192.168.)

While the advice about setting addresses in unbound was good, my
advice would be "don't do that." Depending on IPs on the same
interface to be routed differently will just cause endless pain.

Linode says you can set up a VLAN for free.  Why not do that,
and put the shortcut on a separate interface?  Then everything
should work without any funny configuration.