iptables

["Star Fire" <sunsparc21@xxxxxxxxxxx>]

dear group,

I'm quite new to iptables and using 1.2.6a. We have a linux box opend to the 
net and behind that is a ISA server doing the proxying for the users. We 
have implemented incident reporting on it and continuously getting alerts 
that there are port scan attempts to the internal ISA server. I have enabled 
established and related traffic through my firewal. Can you please tell me 
how this happens.

Question number 2 is..can someone put my linux server external ip address as 
a gteway address and do a portscan to our internal ISA server which has a 
192.168 range IP. If so how can i stop this through IPTABLES?.

Thanks for your time.

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