We are about to migrate our current ISPs to AT&T, the draw back is the ATT is providing the Edge router as well as managing it. Right now I have two OSPF processies in my PIX , one OSPF process for the outside interface and a different OSPF process for the inside interface, my default route is injected downstream from the internet router via "default information originate metric-type-1 ".

The new ISP does allow OSPF but without authentication, my OSPF domain inside uses MD5 for ospf authentication, if I was not to use authentication on the OSPF process on the PIX outside interface Im sure I will encounter problems geting a default route to the PIX.

What other options I have, AT&T tells me they can do OSPF without autentication which is not good for me because I will have to then omit OSPF authentication on my inside routers as well , ATT can simply do static and I was thinking of just killing the OSPF process all together on the PIX-outside interface and configure static route as:

route outside 0.0.0.0 0.0.0.0 ATT_Ethernet_Handoff.ip metric 1

My question is, by omiting the OSPF process from the outside interface and leaving the inside OSPF process intact with its MD5 for my inside network should I be worrying about any issues?

Regards

Jorge