Jeff,
If I understand you correctly, you have configured a static route to 162.212.188.0/22 via Null0 on your 7204 router and you are injecting that route into BGP to make sure it is constantly advertised.
Now you have created a real network 162.212.188.0/22 on a VLAN SVI and when you advertise that network in OSPF, it is not present in the 7204's routing table because, obviously, the static route is already there and OSPF route can not replace it.
There are more ways of solving this issue. One of the easiest approaches is to increase the administrative distance of the static Null0 route to be higher than OSPF's. This will make sure that as long as OSPF advertises this exact network, it will be placed into the routing table on the 7204. Only if the OSPF removes, for whatever reasons, this network from the 7204's routing table, the static route will be installed into the routing table instead. This is accomplished very easily: assuming you have not changed the administrative distance of OSPF on your 7204, the command would be:
ip route 162.212.188.0 255.255.252.0 Null0 111 ! or any number between 111 - 254 inclusive
Do you believe you could test this approach and verify that it works for you?
By the way, these Null0 routes are not called hold-down routes - their proper name is discard routes. A hold-down is a different term whose meaning strongly relates to RIP and IGRP operation (a period of ignoring any updates related to a network that has apparently become unreachable).
Best regards,
Peter
