Re: Anybody Using IPv6?

"Carlos E. R." <robin_listas@es.invalid> wrote:

Consider that, for instance, this laptop has an IPv6 address:
>
cer@Isengard:~> ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.16  netmask 255.255.0.0  broadcast 192.168.255.255
        inet6 fc00::16  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::4ecc:6aff:fe61:50a1  prefixlen 64  scopeid 0x20<link>
        ether 4c:cc:6a:61:50:a1  txqueuelen 1000  (Ethernet)
...

This laptop has an IPv6 link local address.

Btw, the GNU/Linux world has been using iproute2 for two decades now.

What does the IPv6 routing table of the system in question say?

So applications thought that IPv6 was available.

Tries to use it, gets a host unreachable, SHOULD¹ try again with the
next IP address associated with the target hostname, which might
happen to be IPv4, tries to use it, connects successfully.

Different behavior is a bug.

¹ in the RFC2119 sense
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