That did not work, do you think that tcpwrappers could be stopping port
110 traffic?



Jim





On Mon, 2004-03-01 at 13:39, Craig White wrote:
> On Mon, 2004-03-01 at 13:29, elemint@hotpop.com wrote:
> > I am trying to port forward on tcp port 110 but I keep getting 
> > "telnet: Unable to connect to remote host: Connection refused" 
> > 
> > 
> > backround information:
> > localhost 192.168.1.1
> > email server 192.168.1.2
> > 
> > 
> > I get connection refused when I try any of the following commands
> > 
> > telnet localhost 110
> > telnet 192.168.1.1 110 
> > 
> > The only one that works is telnet 192.168.1.2 110
> > 
> > 
> > The command to configure port forwarding:
> > iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 110 -j
> > DNAT --to-destination 192.168.1.2
> > 
> > 
> > 
> > 
> > 
> > The output from iptagbles -L -t -nat 
> > 
> > DNAT       tcp  --  anywhere             anywhere           tcp dpt:pop3
> > to:192.168.1.2 
> > 
> > 
> > I have also looked at tcpdump but there are no headers that come across
> > the interface when I get an access denied, so it seems the kernel might
> > be stopping it before it gets on the wire.  
> ---
> how about...
> 
> echo "1" > /proc/sys/net/ipv4/ip_forward
> 
> Craig
> 
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