Running NW5.1SP6 BM3.7SP3. Had everything working correctly for months,
I changed our NIC cards to 100 MBs full duplex and did a 'reinit' from
the command line. For some reason, this caused our server to forget
it's static NAT table. We couldn't ping anything in this table.
Dynamic NAT still worked fine.

Did a server reboot, and the problem fixed itself. Any ideas on why
this would happen in the first place?