We have 8 VLANs on different subnets and a 3550 doing the routing between them. Since we have three campuses, I have also installed a new 3560 in each of the other two campuses, which are connected via fibre to the 3550. I want to turn on routing on the 3560s, too, but when I issue the command "ip routing" on these switches, they become uncontactable. Traffic still seems to move through them properly, but I can no longer telnet to them. I figure this is a default gateway issue, but I'm not sure how to fix it. The 3550 has no default gateway command issued, but uses a static route to the internet gateway:

ip route 0.0.0.0 0.0.0.0 10.1.1.2

The two 3560s which need ip routing turned on, have a default gateway command set to the management VLAN:

ip default-gateway 10.2.0.1

How can I best configure this arrangement?