natd high cpu use

[twig les]

Hey all, I just set up a 4.9based router for my home office last
week and I noticed this morning that it was slow.  So I logged
in and threw up a top session and saw this:

  PID USERNAME PRI NICE  SIZE    RES STATE    TIME   WCPU    CPU
COMMAND
   88 root      53   0 33988K 33792K RUN    427:02 94.43% 94.43%
natd

I then did this:
gate# tcpdump -i rl1 -n not tcp port 22
tcpdump: listening on rl1


And saw almost zero traffic.  I rebooted thinking natd may have
run away with itself for some reason and upon reboot it came up
with top taking about 16% CPU.  After a whopping 2 minutes or so
natd is now taking 65-95% of the cpu time again.

This box is an AMD 350MHz with 256MB of old SDRAM.  Not a
bragload of power but it should be overkill for splitting out
routing and nat services for 1-4 workstations surfing the web. 
This behavior was *not* present until this morning and I have
added nothing.

Thnx for any insight or troublshooting tips you have, I already
googled and came up craps.


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With a few exceptions, secrecy is deeply incompatible with
democracy and with science.
     --Carl Sagan  
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