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Re: IPS Testing
From: pentestr <pentestr () gmail com>
Date: Sat, 05 Jan 2008 14:04:35 +0530


I have achieved this by configuring a Linux iptables Gateway for me. With following configuration. I can run nessus in one of my systems and that will go through this gateway and the packet will show it is coming from the Spoofed IP.

echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERAD
iptables -A FORWARD -i eth0 -o eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i eth1 -o eth0 -j ACCEPT
iptables -t nat -I POSTROUTING -o eth0 -j SNAT --to <spoofed IP>

Discussion/suggestion/advices/etc are welcome.


I am doing a PT for a customer and found that after running nessus against the target our IP is getting blocked permanently. I want to show this issue to the customer. 1. Is there any specific tool that can generate nessus traffic by spoofing IPs? 2. Is there any tool that can change IP on the fly? While running nessus that should change source IP?

The server have only port 80 Open.

Thank you.

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