anytun-config(8) on Linux
The text dad4e0e2510c, as Debian 7 (Wheezy) shipped it.
anycast tunneling configuration utility
Flags it lists
-
--debug -
--ipv4-only -
--ipv6-only -
--log -
--mux -
--remote-host -
--remote-port -
--role -
-4 -
-6 -
-L -
-U -
-e -
-m -
-o -
-r