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I'm sorry if this isn't the right list or has been mentioned a thousand
times before but I need help with this redirection function under RedHat 6.1
I have enabled IPforwarding and autoforwarding in the kernal and have done
an insmod for ip_forward and ip_masq_portfw.
I have entered the following in a startup script to enable forwarding..
# CLEAR any existing chains
echo 1 > /proc/sys/net/ipv4/ip_forward
echo 1 > /proc/sys/net/ipv4/ip_always_defrag
echo 1 > /proc/sys/net/ipv4/ip_dynaddr
echo 1 > /proc/sys/net/ipv4/tcp_syncookies
echo 1 > /proc/sys/net/ipv4/icmp_ignore_bogus_error_responses
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
/sbin/ipchains -F input
/sbin/ipchains -F output
/sbin/ipchains -F forward
/sbin/ipchains -M -S 7200 10 160
# DENY any attempts of SPOOFING
/sbin/ipchains -A input -j DENY -i eth0 -s 192.168.1.0/24 -d 0.0.0.0/0 -l
# FORWARD all local network to anywhere required.
/sbin/ipchains -A forward -s 192.168.1.0/24 -d 0.0.0.0/0 -j MASQ
/usr/sbin/ipmasqadm portfw -a -P tcp -L 10.10.10.68 43188 -R 192.168.1.1
43188
My main concern is that I still cannot access the internal machine on
192.168.1.1 to port 43188. It doesn't conmect or anything..
My question is "Is there anything majorly important that I have missed or
not mentioned"?
thanks,
George Vieira
Network Administrator
Citadel Computer Systems P/L
http://www.citadelcomputer.com.au
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