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Subject: "bad nat" on ipnat
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Hi,
i`m natting about 200 pc on one machine
ipnat -s shows:
ipnat -s
mapped  in      1569397 out     1688052
added   40190   expired 39045
no memory       0       bad nat 728
inuse   494
rules   8
wilds   0

the "bad nat" value is increasing in time, my ipnat rules are:
#squid
rdr bge0  0/0 port 80 -> 192.168.0.1 port 1111 tcp
rdr xl0 0/0 port 80 -> 192.168.0.1 port 1111 tcp

map fxp0 192.168.0.0/24 -> a.b.c.d/32 proxy port 21 ftp/tcp
map fxp0 192.168.0.0/24 -> a.b.c.d/32 portmap tcp/udp 1025:65000
map fxp0 192.168.0.0/24  -> a.b.c.d/32

what is this "bad nat"?  it doesn`t sound too good, but i cannot find an error in my config.. Any advices/links are welcome 

PS please replay to the list