[atlas] RIPE atlas probe network configuration

Hi James,

On 2014/10/16 19:04 , James A. T. Rice wrote:
> This means that you'd need to configure on your device, something like (assuming linux):
> network: 10.a.b.0/24
> gateway: 10.a.b.1
> alias: p.q.r.s/32
> 
> with it configured that p.q.r.s is the default source IP address to use for any outbound packets.
> 
> This is a relatively 'clean' way of doing things, as it doesn't involve proxy-arp or similar trickery.
> 
> It should be possible to do this for linux based systems. What do you think? Will the atlas probe support it, or would you consider making that a feature?

I guess not having to do proxy arp is attractive from a network
operations point of view, but for a host having to use one specific
address is not attractive at all.

This would be a lot of work on the Atlas side. Not only adding the alias
would require quite a few changes, but then also making sure that all
network code would use the right source address.

So for Atlas, it would be best if the probe could be configured as
p.q.r.0/24 with p.q.r.1 as the gateway. Leaving the whole 10.a.b out of
the story.

Philip