Thanks very much for your kindly help! I use below codes to update the firewall, and it works now.
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A PREROUTING -d 192.168.1.250 -p tcp -m tcp --dport 8080 -j DNAT --to-destination a.b.c.d:8181
iptables -t nat -A POSTROUTING -d a.b.c.d -p tcp --dport 8181 -j SNAT --to-source 192.168.1.250
At 2011-06-27，"John R Pierce" <pierce@xxxxxxxxxxxx> wrote: >On 06/27/11 12:05 AM, muiz wrote: >> [root@localhost ~]# /sbin/iptables -L > >note that doesn't show all the pertinent info. I prefer `iptable -L >-vn`, and it still doesn't show the nat tables, you also need `iptable >-L -vn -t nat` to see those chains, and `iptable -L -vn -t mangle` if >you're using any mangle entries. > > > >-- >john r pierce N 37, W 122 >santa cruz ca mid-left coast >
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