Hello list, When I forward ports to a machine behind a firewall traffic only seems to be going to the lowest port in the range. The following list using the command 'iptables -t nat -L' illustrates this. DNAT udp -- anywhere hostname.domainudp dpts:2074:2076 to:192.168.0.2:2074 DNAT udp -- anywhere hostname.domainudp dpts:4074:4076 to:192.168.0.2:4074 The commands used to forward the ports are as follows: # Forward ports 2074-2076 to 192.168.0.2 iptables -A PREROUTING -t nat -p udp -d $MYIP --dport 2074:2076 -j DNAT --to 192.168.0.2:2074:2076 # Forward ports 4074-4076 to 192.168.0.2 iptables -A PREROUTING -t nat -p udp -d $MYIP --dport 4074:4076 -j DNAT --to 192.168.0.2:4074:4076 $MYIP is a variable which gets the current dynamically assigned IP from eth0 using the following sed expression MYIP=`ifconfig eth0 | sed '/.*addr:/!d;s///;s/ .*//'` If I am thinking straight the list generated with 'iptables -t nat -L' should look like the following. DNAT udp -- anywhere hostname.domainudp dpts:2074:2076 to:192.168.0.2:2074:2076 DNAT udp -- anywhere hostname.domainudp dpts:4074:4076 to:192.168.0.2:4074:4076 How can I make this happen? The iptables commands I am using in the firewall script are just not doing it. Thanks in advance, Doug -- Make sure your E-mail can be read by everyone! http://www.betips.net/etc/evilmail.html Doug Lawlor <dlawlor at roadrunner.nf.net>
