I dont know if this is what you want to do .
To advertise your IGP routes, via BGP you can use 2 methods.
1. Use the network command
2. Use redistribution ( not recommended)
The network command can be used to control the number of IGP routes that are being advertised into BGP. The network that you specify in the "network command" should be available in the IP routing table.
Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus