Great Circle Associates Firewalls
(February 1994)
 

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Subject: acl examples (correction)
From: Paul Traina <pst @ cisco . com>
Date: Wed, 16 Feb 1994 23:10:14 -0800
To: cisco @ spot . colorado . edu, firewalls @ greatcircle . com
Cc: pat @ cpd . tandem . com

Pat is right, the files are in the /pub subdirectory on ftp.cisco.com.

Thanks pat!

------- Forwarded Message

Date:    Wed, 16 Feb 1994 22:56:07 -0800
From:    pat @
 cpd .
 tandem .
 com
To:      pst @
 cisco .
 com
Subject: Re: IP packet filtering firewalls on a cisco router

Paul,

I found the files in:

   ftp.cisco.com:/pub/acl-examples.tar.Z
   ftp.cisco.com:/pub/passive-ftp.tar.Z

Not the /ftp location you listed.

               -pat

- ---------------

Cc: firewalls @
 greatcircle .
 com
Subject: IP packet filtering firewalls on a cisco router
Date: Wed, 16 Feb 1994 21:33:49 -0800
From: Paul Traina <pst @
 cisco .
 com>
Content-Length: 800

I've recently updated my examples for firewall building on ftp.cisco.com.

I would suggest to anyone who is interested in implementing general
purpose IP firewalls using packet filtering on a cisco router (or on any
packet filtering device) take a peek at this stuff.

    ftp.cisco.com:/ftp/acl-examples.tar.Z

Also of interest is

    ftp.cisco.com:/ftp/passive-ftp.tar.Z
    

which is a FTP client modifed to not require inbound TCP connections on
random ports greater than 1023.

Neither of these applications is supported by cisco Systems or myself.
There are no guarantees that building a firewall system using these tools
will protect you from anything.  This information is provided for educational
purposes only.  Your milage may vary...  (read: if you get hit anyway, don't
blame us)

Paul


------- End of Forwarded Message


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