curl / Mailing Lists / curl-library / Single Mail


Re: Retrieve all addresses mapped to specific host, not just one IP

From: Gisle Vanem via curl-library <>
Date: Tue, 14 Aug 2018 14:40:04 +0200

myLC--- wrote:

> Prioritization (which IPs libcurl should favor) might become
> an issue then.

"should favour" how? Based on what; that IPv6 is better/speedier
than IPv4, or some addresses based on Geo-location is best?
libcurl knows zero about this. It would be cool if it did though.

In fact IPv6 can be a lot slower than IPv4. My case right now
(with IPv6 over a '6to4' tunnel) is that a:
   curl -6 server-in-Oslo-Norway
goes via California! (3 times slow that with 'curl -4').

So much this hyped-up IPv6 protocol.

Received on 2018-08-14