[Pkg-utopia-maintainers] Bug#1125800: network-manager: Disabling IPv4 manually causes n-m to disconnect after few seconds from IPv6

[Witold Baryluk]

Package: network-manager
Followup-For: Bug #1125800
X-Debbugs-Cc: witold.baryluk at gmail.com

Dear Maintainer,

please close this bug report.


Beniamino Galvani, a Network Manager contributor / developer looked into
it, and said that this is because I am receiving two RAs, and one of
them says to use DHCPv6 (managed flag is set), then n-m tries, but it
fails (I do not run DHCPv6), and after timeout considers connection bad,
and disconnects.

This was caused by bad default configuration (or misconfiguration many
many years ago), on one of non-routing WiFi access points running in the
same network. Disconnecting that WiFi access point, solved the problem.

So probably not a bug in network manager.

I will later see and check RFCs what host should do when receiving exact
packets I presented in tcpdump in my previous message (one with no
routes, and medium prio, but with managed flag set, and another with
routes, high prio, dns options and no managed flag set).

Please close.