[j-nsp] Advertising a default route from JUNOS

[variable at ednet.co.uk]

Hi,

We've got a few M-40's handling our transit which get full internet 
routing tables via BGP.  In turn, we want them to advertise a default 
route via OSPF to all the internal OSPF capable routers.

I was wondering what's the best way to do this on a Juniper.  Is there an
equivalent of the "default-information originate" and "default-network"
commands or is there a better implementation under Junos?

Cheers,

Rich