impossible rc.d ordering problem with stf and pf ?

[Pete French]

Am trying to solve a little problem with 'pf'. I have a ruleset which
has some firewall rules for the IPv6 interface stf0. This works fine,
except when I rreboot the machine, as the pf script is run before the
network_ipv6 script - so stf0 does not exist. but I cannot work out
how to arrange for stf0 to be created before the pf script is run - as
network_ipv6 requires 'routing', but the pf script says it must be run
before 'routing', if I am reading the 'REQUIRE' and 'BEFORE' lines
correctly.

Any solutions ?

-pete.