Did you see the movie Pi? :)
"Howard
C.
Berkowitz" To:
[EMAIL PROTECTED]
Subject: Re: OSI...Please help...
[7:51235]
Sent
by:
nobody@groupst
udy.com
08/12/2002
03:02
PM
Please
respond
to "Howard
C.
Berkowitz"
At 6:16 PM +0000 8/12/02, John Neiberger wrote:
>Good point! Forgive me, I'd only had one cup of coffee when I wrote
>that. Usually I need at least three before my explainer works
>correctly.
>
>John
You bring up an interesting question. Could we have predicted our
industry crash by monitoring coffee consumption by accountants,
vendors, or venture capitalists, etc.? There _ought_ to be a
correlation.
>
>>>> "Howard C. Berkowitz" 8/12/02 11:39:12 AM >>>
>At 4:35 PM +0000 8/12/02, John Neiberger wrote:
>>You're putting too much thought into this. :-) The ip keyword will
>>match any ip packet regardless of the transport layer protocol being
>>used. You use the tcp, udp, and icmp keywords when you want to be
>even
>>more specific.
>>
>>HTH,
>>John
>>
>>>>> "maine dude" 8/12/02 10:16:19 AM >>>
>>Please help... In the example :access-list 101 deny tcp host
>>172.16.3.10
>>172.16.1.0 0.0.0.255 eq ftpaccess-list 101 permit ip any any Do the
>>terms
>>"tcp" and "ip" refer to the individual protocols or the stack ? I
>>assume
>>they refer to the individual protocols as you could substitute them
>>with
>>"udp" or "icmp" but then surely the last statement would allow only
>>the
>>individual "ip" protocol and therefore all other packets such as tcp
>,
>>udp,
>>icmp would be filtered. Or does tcp , udp , icmp get through because
>it
>>is
>>encapsulated in ip ? ( I hate the OSI model ) -DJ
>
>Trust me. IP designers did not have OSI compliance in mind.
>
>And to be picky, John, ICMP isn't a transport protocol. It is a
>control/management protocol at the network layer.
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