> Message: 6
> Date: Mon, 26 Apr 1999 17:46:25 -0500
> From: Fuzzy Fox <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: [Masq]  Re: Squid and ipfwadm
>
>
> [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> >
> > ipfwadm -I -p accept
> > ipfwadm -O -p accept
> > ipfwadm -F -a m -p accept
> > ipfwadm -I -f
> > ipfwadm -O -f
> > ipfwadm -F -f
>
> It's not a good idea to set the default forward policy to
> "accept/masq".
>  That causes your firewall to masquerade traffic, no matter which
> direction it is going.  External systems will appear with as internal
> IP's inside your local net, and vice versa.  You really only want masq
> to operate in one direction.
>
> Change your default forward policy to "reject", and add a rule that
> accept/masq's traffic from the local net going to the outside net.
>
> You might think this is unrelated to your problem, but you
> might also be
> wrong.  :)
>

My real ipfwadm masquerading rule is (after flushing and setting my default
policy to deny for I O and F):
/sbin/ipfwadm -F -a m -S $LocalNet -D $Anywhere

The above "accept" rules above are only to test if squid works when there
are no deny filters, which so far proves to be the case.

> > I read in the Squid documentation that "if you are behind a firewall
> > then you can't make direct connections to the outside world, so you
> > must use a parent cache."
>
> No, you are not behind a firewall, because your box is the firewall.
>

Thanks.




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