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ipmasqadm portfw

check out the list archives on www.debian.org

I recall its something to do with ICMP redirects, or a similar concept.

----- Forwarded by Vince Mulhollon/Brookfield/Norlight on 05/21/2001 03:35
PM -----
                    Gaspardis"             To:     <debian-firewall@lists.debian.org>                                 
                    <gaspardis@tisc        cc:     (bcc: Vince Mulhollon/Brookfield/Norlight)                         
                    alinet.it>             Fax to:                                                                    
                                           Subject:     ipmasqadm portfw                                              
                    03:15 PM                                                                                          
                    Please respond                                                                                    
                    to "Gabriele                                                                                      

I built a linux firewall with a kernel 2.2.17 (debian potato).
I try to use ipmasqadm portfw to forward the external machine www port to
the internal server with this command:
- ipmasqadm portfw -a -P tcp -L $EXTADDR 80 -R 80
I used a completly open ipchains configuration with masquerade for the
internal network. I also enabled ipforwarding.
When I connect to the external address from an Internet machine, I obtain
the correct forwarding to the internal address, but when I try to connect
from one of the internal computer ( with a browser it response
that is 'Unable to connect the remote host!".
Can anyone explain me what is the problem?

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