2651XM eth0 configured with IP address (10.1.1.1/24), secondary IP address (172.16.1.1/24) and connected to fa0/1 on a 3750
3750 has int VLAN100 (10.1.1.2) and VLAN 200 (172.16.1.0/24) but without an SVI. The only way I can get any connectivity is to configure fa0/1 with 'switchport access vlan 200'. With that in place, from the switch I can ping both router IP addresses. Workstations on VLAN100 can ping their default gw but cannot ping anything on VLAN200 (servers). Needless to say anything on VLAN200 subnet can't ping the default gw.
Am I doing something wrong?
I would like to be able to route traffic between both subnets using both IP addresses on the 2651 as the default gateways.
The 2651 is provider controlled so getting changes done to it is time consuming. Getting it to work with this config is desirable but it can be changed if necessary.