Thank you for your reply . Sorry that I was not exact on my previous message . Actually , my CentOS host is @172.18.98.1 and the network element is @172.18.0.1 . To this end , my host can ping the network element but when I try to scan its ports to see which one is open the nmap cannot distinguish and returned the message that I sent you . I hope this clarifies my situation here .
On Tue, Sep 29, 2009 at 12:26 PM, Bastian Ballmann <bb@xxxxxxxxxxx> wrote:
hadi motamedi schrieb:
> Thank you for your reply . But still it cannot get through :> <http://www.insecure.org/nmap/> )
> "
> #nmap -sS -p 20-80 172.18.0.1
> Starting nmap V. 3.00 ( www.insecure.org/nmap/
> Note: Host seems down. If it is really up, but blocking our pingI dont know your network structure, but in your last email it sounds if
> probes, try -P0
you could ping the host and now it looks like you're dropping everything?
iptables -P INPUT ACCEPT
This will allow all input to your host.
HTH & Greets
Basti
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Bastian Ballmann
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