Simple iptables rule to punch a hole in the firewall.

[hanasaki <hanasaki@hanaden.com>]

Could someone help me out with a set of rules to NAT or MASQ port 500 on 
TCP and on UDP from the internal to the external network?  Only 
connections originated on the internal network should be allowed.

I have : iptables v1.2.4

Thanks,

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hanasaki@hanaden.com
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