(for IPv6 connectivity). The used URL looks like this
http://ipv{4|6}.connman.net/online/status.html
+When an online check request fails, another one is triggered after a
+longer interval. The intervals follow the square series of numbers
+in a specific range, by default [1, 12], corresponding to the following
+intervals, in seconds: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121 and 144.
+
See connman.conf(5) for the EnableOnlineCheck option, if you need to
disable the feature.
+It is also possible to specify other URLs via OnlineCheckIPv4URL and
+OnlineCheckIPv6URL options.
+The range of intervals between two online check requests can be fine-tuned
+via OnlineCheckInitialInterval and OnlineCheckMaxInterval options.
During the online check procedure, ConnMan will temporarily install
a host route to both the ipv4.connman.net and ipv6.connman.net so that
Mailing list archive:
https://lore.kernel.org/connman
+
+IRC:
+ ircs://irc.oftc.net:6697/#connman (for SSL)
+ irc://irc.oftc.net:6667/#connman (for non-SSL)