I have a 3750G connected up to two 6500's/ Port G1/0/25 goes to CoreA and G1/0/26 goes to CoreB
I have the following VLANs;
ip address 172.30.194.190 255.255.255.192
ip address 192.168.70.2 255.255.255.252
ip address 192.168.70.6 255.255.255.252
I have interface 1/0/25 configured in access vlan 27 and 1//0/26 in access vlan 30.
I currently have
ip route 0.0.0.0 0.0.0.0 192.168.70.1 (this points to CoreA)
I would like to add a second default route of:
ip route 0.0.0.0 0.0.0.0 192.168.70.5 250 (which would point to CoreB with a higher admin distance)
The question is whether or not this would provide the redundancy I am looking for. If my cable is pulled on 1/0/25 will the second route take over?
Your config looks fine on your first post.
What I mean is you want to make sure your Core-B has a static route back to the 3750 for VLAN 10 (I am assuming you have a static route back on Core-A already).