Masquerading problems

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Author: Eric Thelin
Date:  
Subject: Masquerading problems
I trying to use ip masquerading and getting very strange results. I
have created an ipchains config script that should work and sort of
does. It works fine to both addresses on the gateway machine. Then I
try to ping remote addresses. The first ping and a few following pings
usually works and then most of the rest are lost. About 1 in 250 pings
are returned. I have actually rebuild the machine from scratch and it
still does the same thing. I had it working about 6 months ago and have
know idea what is different. My ipchanis config consists of:

/sbin/depmod -a
/sbin/modprobe ip_masq_ftp
echo "1" > /proc/sys/net/ipv4/ip_forward
echo "1" > /proc/sys/net/ipv4/ip_always_defrag
/sbin/ipchains -M -S 7200 10 160
/sbin/ipchains -F
/sbin/ipchains -P forward DENY
/sbin/ipchains -A forward -s 192.168.0.0/16 -j MASQ

Any ideas? What could even cause this? Could it be something related
to the fact that the connection I am trying to share is a cable modem?

Eric


-- 
Eric Thelin                                          
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