Patrick & Allen,
  Thanks for the responses -- helps loads.  I'm still slightly confused.

I did a clear conduit expecting to block all incoming traffic.  Following
the clear conduit, I did a show  conduit  to  verify   there were not any
conduits  in operation.  At that time, I was still able to receive web
traffic at my workstation.  For that matter, the conduit statements only
applied to specific servers so why am I able to receive http at my
workstation?  I did try to PING an IP address which failed  when I removed
the conduits and  worked when I restored "conduit permit icmp any any" --
that behaved as expected.


Thanks,
Steve

""Allen May""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Very true and a good point, but the original question was about conduits
> which only apply to lower->higher.  Higher->lower requires NAT.  I
> accidentally typed access-list below but meant conduit. ;)  *slap self &
get
> more coffee*.  It still applies but wasn't what I meant to say.
>
> Thanks for pointing that out though.
>
>
> ----- Original Message -----
> From: Patrick W. Bass
> To:
> Sent: Sunday, November 25, 2001 10:14 PM
> Subject: Re: PIX conduit & access lists [7:26684]
>
>
> > ""Allen May""  wrote in message
> > news:[EMAIL PROTECTED]...
> > > I'm not sure if this was answered or not, but a firewall always
assumes
> a
> > > deny all at the end of the access-list for inbound.  Outbound is
> different
> > > since it allows all by default.
> > >
> >
> > Remeber this:  Higher security level to lower security level, implicitly
> > allowed.  Lower security level to higher security level, implicitly
> denied.
> > Otherwise it gets tricky once you start messing with multipile DMZs.
> >
> > > Also, access-lists are the way to go since conduits will be phased out
> in
> > > the near future.
> > >
> > > Allen
> > >
> > > ----- Original Message -----
> > > From: Steve Alston
> > > To:
> > > Sent: Monday, November 19, 2001 9:25 AM
> > > Subject: Re: PIX conduit & access lists [7:26684]
> > >
> > >
> > > > Carroll,
> > > >   Thanks for the reply.  I'm using conduits now, but will switch to
> > access
> > > > lists in the future.  (I'd like to fully understand the
configuration
> I
> > > > inherited before I start making changes)  Are implicit denys
inserted
> > > behind
> > > > each conduit as well?
> > > >
> > > >
> > > > ""Carroll Kong""  wrote in message
> > > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > > > Implicit denys behind every access-list are inserted.  Are you
> > > > > mixing conduits and access-lists?  You really should not.  Use ALL
> > > > conduits
> > > > > or ALL access-lists.  If both are used, conduits take priority and
> > > > override
> > > > > your access-lists.  Access-lists are first match, conduits are any
> > > match.
> > > > >
> > > > > At 09:24 AM 11/19/01 -0500, Steve Alston wrote:
> > > > > >Does the PIX 506 require an explicit deny statement after setting
> up
> > a
> > > > > >permit conduit or access list.
> > > > > >
> > > > > >I appear to be receiving more traffic (e.g. NTP) than my conduit
> > > > statements
> > > > > >allow.
> > > > > >
> > > > > >Thanks much,
> > > > > >Steve
> > > > > -Carroll Kong




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=27588&t=26684
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