No fallback to IPv4 address when IPv6 connect attempt fails with Network is unreachable: connect

[dkocher]

Discussed in #16703.

The issue is that with #16639 IPv6 address may be preferred over IPv4 and no attempt is made to connect using IPv4 if an IPv6 address causes java.net.SocketException) Network is unreachable: connect.

[dkocher]

Referencing upstream issue HTTPCLIENT-2288 ¹.

Footnotes

1. https://issues.apache.org/jira/browse/HTTPCLIENT-2288 ↩

[dkocher]

As a workaround disable the IPv6 network adapter ¹.

Footnotes

1. https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/configure-ipv6-in-windows#using-the-network-properties-gui-to-disable-ipv6-is-not-supported ↩