recently I deployed WAAS 4.1.1c with Catalyst6500. We have several different L3 vlan interfaces configured as wccp 61/62 redirect in. The L3 vlan interface connected to the direct servers is normal. However, I found that L3 vlan interface connected to internal FWSM outside interface doesn't work well.
I don't know if it's a Catalyst6500 IOS or WAAS issue.