iptables port forwarding troubleshooting
- by cbmanica
I'm trying to forward connections on port 18600 to port 9980. I have this in /etc/sysconfig/iptables:
# Generated by iptables-save v1.3.5 on Mon Oct 21 18:30:43 2013
*nat
:PREROUTING ACCEPT [2:280]
:POSTROUTING ACCEPT [12:768]
:OUTPUT ACCEPT [12:768]
-A PREROUTING -p tcp -m tcp --dport 18600 -j REDIRECT --to-ports 9980
COMMIT
# Completed on Mon Oct 21 18:30:43 2013
and /etc/init.d/iptables status shows me this:
Table: nat
Chain PREROUTING (policy ACCEPT)
num target prot opt source destination
1 REDIRECT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:18600 redir ports 9980
However, I can telnet from localhost to port 9980, but not 18600. What am I missing? (This is a CentOS-based VM.)
