I'm trying to set up IP-NAT so that I can use my local network with a 
netbsd 
system serving as a gateway to my ISP. 

I have tried to exactly follow the IP-NAT HOW-TO at:

http://lethargy.mit.edu/~armenb/ipnat.html

but I must have something wrong.

When I attempt to start IPNAT, I get 
some error messages and the gateway does not work.

I have ppp running and can access internet, but machines on the local 
network can not use 
the NetBSD box as a gateway.

Can anybody tell me what I'm doing wrong ?

Thanks,

.....Harlan

****************************************************************
Here is the output during startup:

      [snip]

Automatic boot in progress: starting file system checks.
/dev/rsd1a: file system is clean; not checking
setting tty flags
starting network
hostname: macbsd-p600
domainname: home.net
installing packet filter rules ...
open device: No such file or directory
SIOCFRENB: Bad file descriptor
open device: No such file or directory
ioctl(SIOCIPFFL): Bad file descriptor
open device: No such file or directory
configuring network interfaces:  ae0ifconfig: inetmask: bad value
ae0: flags=8822(BROADCAST,NOTRAILERS,SIMPLEX,MULTICAST) mtu 1500
        inet 0.0.0.0 netmask 0x0