From: Toh Soon, Lim (tohsoon28@gmail.com)
Date: Sun Nov 18 2007 - 07:36:42 ART
Hi Joe,
For class-map IMAGES, can I configure the following instead?
!
class-map match-any IMAGES
match protocol http mime "image/jpg"
match protocol http mime "image/bmp"
match protocol http mime "image/gif"
!
You seem to recommend using regexp URL match. Any specific reason?
AFAIK, this post is about matching returning traffic from the website that
contains images with suffixes .jpg, .bmp and .gif. I have limited
understanding of HTTP; however, are we able to use "match protocol http url"
to classify the returning image files from the website? Would matching MIME
be a more effective method?
Kindly advise.
Thank you.
B.Rgds,
Lim TS
On 10/8/07, Joseph Brunner <joe@affirmedsystems.com> wrote:
>
> If any task says .jpg, .jpeg, .gif, etc. then you are obliged to use the
> regexp url match
>
> class-map match-all IMAGES
> match protocol http url "*.jpg|*.jpeg|*.gif"
>
>
> I used to make a match-any with each on a separate line until Victor
> showed
> me his way... which works in a live network. I used this config to block
> all
> images from match.com / facebook.com at a client site. The rest of those
> sites are limited to 128,000, oh, and during business hours they are dead
> all together...
>
> JB
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Anis
> S
> Sent: Sunday, October 07, 2007 9:20 PM
> To: Thomas.W.Johnson@chase.com
> Cc: ccielab@groupstudy.com
> Subject: Re: Match Protocol
>
> How about using both mime & url under a 'match any' class? In practice,
> not
> all images might be encoded in mime format.
>
> However, for the exam, mime might be the preffered way. Correct me if i'm
> wrong.
>
> On 10/5/07, Thomas.W.Johnson@chase.com <Thomas.W.Johnson@chase.com> wrote:
> >
> > I'm ran across a question that wanted you to limit all return traffic
> > from
> > www.thiswebsite.com/thisdirectory destined for a specific VLAN to
> > whatever,
> > 512k, and drop any image files (jpg, bmp or gif) from this
> > website.
> > How do you match the image files? I assume it's with the match protocol
> > http
> > command, however, what parameters do you use? Do I need to use the
> > match
> > protocol http with the mime parameter or do I use match protocol
> > http with
> > url *.jpg | *.bmp | *.gif? I just don't understand how you
> > match image files
> > with the match protocol command.
> >
> >
> >
> > Thanks in advance.
> >
> >
> >
> > Thomas
> > Johnson
> >
> > JP Morgan Chase
> >
> > Global Network Implementation
> > -----------------------------------------
> > This transmission may contain
> > information that is privileged,
> > confidential, legally privileged, and/or
> > exempt from disclosure
> > under applicable law. If you are not the intended
> > recipient, you
> > are hereby notified that any disclosure, copying, distribution,
> > or
> > use of the information contained herein (including any reliance
> > thereon) is
> > STRICTLY PROHIBITED. Although this transmission and
> > any attachments are
> > believed to be free of any virus or other
> > defect that might affect any
> > computer system into which it is
> > received and opened, it is the responsibility
> > of the recipient to
> > ensure that it is virus free and no responsibility is
> > accepted by
> > JPMorgan Chase & Co., its subsidiaries and affiliates, as
> > applicable, for any loss or damage arising in any way from its use.
> > If you
> > received this transmission in error, please immediately
> > contact the sender and
> > destroy the material in its entirety,
> > whether in electronic or hard copy
> > format. Thank you.
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sat Dec 01 2007 - 06:37:30 ART