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## 4. Quirks and Problems

## 4.1 Odd message when using ipchains -X

The patch to add the bridgein built-in rule to ipchains makes the "delete all chains" command, ipchains -X, issue the following error:

     ipchains: Device or resource busy

As far as I can tell this is harmless. I suspect that ipchains does not understand that the new bridgein rule is a builtin.

## 4.2 Shared Interrupts

As I mentioned in Hardware Setup, at least for PCI NIC's you do not want to share interrupts between the two cards (or probably with any other device).

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