Overlapping IPs on different VLANs

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I have two VLANs configured on a box as shown below with overlapping IPs
on different VLANs.
If C (IP2 on the right) sends a packet to IP1 (A) on VLAN 100, the
packet is dropped as a martian since IP2 is a local address on A (even
though its on a different VLAN).

Is there a way (some setting or a patch) to fix this? (There's an
rp_filter setting but that's not for local addresses)


  ---------------------
  |                    |   VLAN 100        ---------
  |     IP1 (eth0.100) |----------------- |IP2      |
  |                    |                  |       B |
  | A                  |                   ---------
  |                    |   VLAN 101        ---------
  |     IP2 (eth0.101) |----------------- | IP1     |
  |                    |                  |       C |
  ---------------------                    ---------


I'm running 2.6.8

TIA
./aman

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