This sounds odd...You're positive R1,R2,R3, and H1 are all on the same vlan and subnet? What are the specific IPs of all R# and H1 on that subnet.Can you provide output of 'show ip route 10.4.245.0' on R3 You mentioned H1 learning the 10.0.0.0 route...
You can use policy routing... which is source based routing.You can force traffic from a certain source subnet (including ports) matching any destination (including ports) to go out any direction you want. I recommend using policy routing as a tempor...