Hello,

On 28 Mar 2021, at 07:43, Peter Müller peter.mueller@ipfire.org wrote:

Hello Michael, hello location folks (CC'ed),

finally having some spare time to spend on ${things}, I thought working on #11754, #12594 and #12595 might be a good idea to improve the results of our location database. :-)

Since #11754 and #12594 involve something like automated overrides to fetched RIR data, I recently noticed adding overrides is changing the displayed network length in a "location lookup" output:

...

[root@maverick ~]# location lookup 176.10.99.192 176.10.99.192: Network : 176.10.99.192/27 Country : Switzerland Autonomous System : AS51395 - Datasource AG Anonymous Proxy : yes

176.10.99.192 is part of 176.10.96.0/19, which is announced as such by AS51395, hence the output is misleading. A better result would be to display the original size of a BGP announcement, adding some flags if needed without stripping down the IP network size to the override.

I do not find this confusing. We are just stating that this IP address belongs to a certain AS. We do not make any statements about any other IP addresses in the same AS or other ones.

If you could query a whole subnet, that would be a different thing.

This is a minor issue as far as I am concerned, but before I create code that generates overrides en masse, I would like to discuss whether or not it is a good idea to keep the current behaviour.

I do not see any problem with this. Did I misunderstand you?

Thanks, and best regards, Peter Müller

-Michael