rrenumd(8) on FreeBSD
The text f844355bd03f, as FreeBSD 7.0-RELEASE, FreeBSD 6.3-RELEASE, FreeBSD 6.2-RELEASE, FreeBSD 6.1-RELEASE, FreeBSD 6.0-RELEASE shipped it.
router renumbering daemon
Flags it lists
-
-c -
-d -
-f -
-s