iptables --flush confusion

[Aviss,Tyler]

Flush clears the firewall rules, although for NAT I believe you need  
"--flush -t nat"

I assume you're connecting the the WAN OP, but maybe a leftover NAT  
rule is redirecting you connection, or the daemon you're connecting to  
doesn't listen on that port/IP? You could test with "tcplisten" or  
possibly "nc" for connections.



(sent from my phone, so please excuse the typos)

On 30-May-09, at 2:22 PM, simon-tlug-GaisZHhRk3c at public.gmane.org wrote:

> I have a router set up to do NAT that's using iptables, with  
> net.ipv4.ip_forward=1, and I'm somewhat confused why when I do an  
> 'iptables --flush', I'm no longer able to connect to it from another  
> device that is on the same subnet that the 'wan' interface is on.
>
> Does anyone know why this is? Am I misunderstanding what it is that  
> --flush does, or some other basic networking concept?
>
> Cheers,
> spd
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