Ubuntu
eglibc package

  1. Bug #417757
  2. Comment #399

Comment 399 for bug 417757

Revision history for this message
In , tore (tore-redhat-bugs-1) wrote :

(In reply to comment #64)
> I disagree with making getaddrinfo() consider a host with only IPv6
> link-local addresses to not have IPv6 connectivity.

That's not what this bug report is about. It's about suppressing DNS "IN AAAA" queries if the host only has link-local addresses and AI_ADDRCONFIG is supplied.

> Combine autoconfigured IPv6 link-local addresses with a service discovery
> protocol such as Multicast DNS or SSDP,

This bug report is specifically about DNS. It's not about MDNS, SSDP, /etc/hosts, or any other NSS backends.

> I think it is reasonable to hosts more robust against broken devices in the
> network, but ignoring IPv6 link-local connectivity and then suppressing AAAA
> queries is not the solution.

How is it useful for a host with only link-local addresses to perforn "IN AAAA" DNS queries? Keep in mind that in order to use a link-local address, you need to supply an interface scope (e.g., "fe80::1%eth0"), and that DNS cannot supply this information.

Tore