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 :: Mailing Lists

[ILUG] IP masq

[ILUG] IP masq

Damian O'Sullivan damian.osullivan at piercom.ie
Thu Dec 21 11:13:52 GMT 2000


Thanks Colm,
I assume its ifconfig thats used to set up virtual eth0:[0-??]
How many can be set up? Are there any issues with doing this? Also what is
the exact syntax to do this?

Thanks again.

Damian.

On Thu, 21 Dec 2000, Colm Buckley wrote:

> 
> > Does anyone know if the following is possible using linux as a firewall.
> > Is there a way to masquerade multiple IP addresses through the linux box.
> > The internal network has some web servers and I want each to have their
> > own external IP address. 
> 
> Yes, this is easy.
> 
> The "ipmasqadm" command does this - basically, you get the external
> side of the firewall to adopt all the relevant IP numbers (virtual
> interfaces), and then you use something like "ipmasqadm portfw -a -P
> tcp -L external_address 80 -R internal_address 80" for each host you
> want a port mapped through for.
> 
>          Colm
> 





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