Is there anyway to specify which IP Radius request come from? For some reason they are not coming from the address I want them to (I have multiple outside addresses bound to my card). Radius will reject the request if it is not coming from the correct IP (it gives a bad digest type error). Any help on create a firewall rule or setting this somewhere would be appreciated!

Use the 'bind address' directive in radiusd.conf

but which address you are using while talking to other world from your router? Maybe try this route:

/ip route add prefered-source=x.x.x.x

where x.x.x.x is an IP you will use to make outside connections.

Edgars