If you AREN'T SURE if your Linux distribution is MASQ ready, do the following:

I think the command is ls /proc/sys/net/ipv4 .

With 2.4.x kernels (look for most of the following entries out of the much longer list):
ip_dynaddr

ip_forward

And for 2.2.x kernels:

ip_always_defrag

ip_dynaddr

ip_forward

ip_masq_debug

ip_masq_udp_dloose

Running "ls /proc/net"


ip_fwchains

ip_fwnames

ip_masquerade


Running "ls /proc/net/ip_masq"


app

icmp

icq

mfw

portfw

tcp

udp

Hope this helps out, in some way or another.
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