I'm using Debian Woody with ipchains compatibility enabled in kernel. Eth0 is connected to a cable modem; Eth1 is a small internal network. With 2.4.23 sending any packets from internal network to internet causes at least eth1 to die, not immediately but in a minute or so. I don't know if the entire machine freezes, or if it's eth1 only; the
This may be a known problem with 2.4.23, try the following patch from patch-o-matic:
submitted/90_fw_compat_local-nullbinding.patch
-- Philip Craig - SnapGear, A CyberGuard Company - http://www.SnapGear.com