RE: Reg Experts!

Ctrl + V or some other random keystroke. When you go to enter an ip as-patch access-list 1 permit ? It'll show you the key strokes.
JB

-----Original Message-----
From: Jack Router [mailto:pan.router_at_gmail.com]
Sent: Wednesday, June 09, 2010 2:36 PM
To: 'Tyson Scott'; Poplawski, James; ccielab_at_groupstudy.com
Subject: RE: Reg Experts!

How do you test expressions with question mark. As soon as I type it IOS
thinks it is help:

route-views.optus.net.au>sh ip bgp regexp 202?
LINE <cr>

-----Original Message-----
From: Tyson Scott [mailto:tscott_at_ipexpert.com]
Sent: 9-Jun-10 15:29
To: 'Poplawski, James'; 'Jack Router'; ccielab_at_groupstudy.com
Subject: RE: Reg Experts!

If you guys want to play around with it go to a public route-server and test
your expressions. Search google for "route-server" I for example
frequently use route-server.ip.att.net

Here is what 100+ matches. Notice the output. It is matching 10002 and
10026

route-server>show ip bgp regexp 100+
BGP table version is 41364546, local router ID is 12.0.1.28
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path
* 12.120.206.0/24 12.122.125.4 1666 0 7018 17224
10002 17225 i
* 12.123.139.124 0 7018 17224
10002 17225 i
* 12.123.5.240 0 7018 17224
10002 17225 i
* 12.123.21.243 0 7018 17224
10002 17225 i
*> 12.123.1.236 0 7018 17224
10002 17225 i
* 12.122.83.91 1711 0 7018 17224
10002 17225 i
* 12.123.37.250 0 7018 17224
10002 17225 i
* 12.123.134.124 0 7018 17224
10002 17225 i
* 12.123.29.249 0 7018 17224
10002 17225 i
* 12.123.142.124 0 7018 17224
10002 17225 i
* 12.123.137.124 0 7018 17224
10002 17225 i
* 12.123.25.245 0 7018 17224
10002 17225 i
* 12.123.17.244 0 7018 17224
10002 17225 i
* 12.123.41.250 0 7018 17224
10002 17225 i
* 12.123.9.241 0 7018 17224
10002 17225 i
* 12.123.13.241 0 7018 17224
10002 17225 i
* 12.123.45.252 0 7018 17224
10002 17225 i
* 12.123.133.124 0 7018 17224
10002 17225 i
* 12.123.33.249 0 7018 17224
10002 17225 i
* 12.123.145.124 0 7018 17224
10002 17225 i
* 27.1.0.0/18 12.122.125.4 511 0 7018 10026 9848
9943 i
* 12.123.139.124 0 7018 10026 9848
9943 i
* 12.123.5.240 0 7018 10026 9848
9943 i
* 12.123.21.243 0 7018 10026 9848
9943 i
*> 12.123.1.236 0 7018 10026 9848
9943 i
* 12.123.13.241 0 7018 10026 9848
9943 i
* 12.123.134.124 0 7018 10026 9848
9943 i
* 12.122.83.91 161 0 7018 10026 9848
9943 i
* 12.123.9.241 0 7018 10026 9848
9943 i
* 12.123.41.250 0 7018 10026 9848
9943 i
* 12.123.133.124 0 7018 10026 9848
9943 i
   Network Next Hop Metric LocPrf Weight Path
* 12.123.142.124 0 7018 10026 9848
9943 i
* 12.123.17.244 0 7018 10026 9848
9943 i
* 12.123.145.124 0 7018 10026 9848
9943 i
* 12.123.37.250 0 7018 10026 9848
9943 i
* 12.123.137.124 0 7018 10026 9848
9943 i
* 12.123.29.249 0 7018 10026 9848
9943 i
* 12.123.25.245 0 7018 10026 9848
9943 i
* 12.123.45.252 0 7018 10026 9848
9943 i
* 12.123.33.249 0 7018 10026 9848
9943 i
* 27.1.64.0/18 12.122.125.4 511 0 7018 10026 9848
9943 i
* 12.123.139.124 0 7018 10026 9848
9943 i
* 12.123.5.240 0 7018 10026 9848
9943 i
* 12.123.21.243 0 7018 10026 9848
9943 i
*> 12.123.1.236 0 7018 10026 9848
9943 i
* 12.123.13.241 0 7018 10026 9848
9943 i
* 12.123.134.124 0 7018 10026 9848
9943 i
* 12.122.83.91 161 0 7018 10026 9848
9943 i
* 12.123.9.241 0 7018 10026 9848
9943 i
* 12.123.41.250 0 7018 10026 9848
9943 i
* 12.123.133.124 0 7018 10026 9848
9943 i
* 12.123.142.124 0 7018 10026 9848
9943 i
* 12.123.17.244 0 7018 10026 9848
9943 i
* 12.123.145.124 0 7018 10026 9848
9943 i
* 12.123.37.250 0 7018 10026 9848
9943 i
* 12.123.137.124 0 7018 10026 9848
9943 i
* 12.123.29.249 0 7018 10026 9848
9943 i
* 12.123.25.245 0 7018 10026 9848
9943 i
* 12.123.45.252 0 7018 10026 9848
9943 i
* 12.123.33.249 0 7018 10026 9848
9943 i
* 27.1.128.0/18 12.122.125.4 511 0 7018 10026 9848
9943 i
* 12.123.139.124 0 7018 10026 9848
9943 i
* 12.123.5.240 0 7018 10026 9848
9943 i
* 12.123.21.243 0 7018 10026 9848
9943 i
*> 12.123.1.236 0 7018 10026 9848
9943 i
* 12.123.13.241 0 7018 10026 9848
9943 i
* 12.123.134.124 0 7018 10026 9848
9943 i
* 12.122.83.91 161 0 7018 10026 9848
9943 i

Regards,

Tyson Scott - CCIE #13513 R&S, Security, and SP
Managing Partner / Sr. Instructor - IPexpert, Inc.
Mailto: tscott_at_ipexpert.com
Telephone: +1.810.326.1444, ext. 208
Live Assistance, Please visit: www.ipexpert.com/chat
eFax: +1.810.454.0130

IPexpert is a premier provider of Self-Study Workbooks, Video on Demand,
Audio Tools, Online Hardware Rental and Classroom Training for the Cisco
CCIE (R&S, Voice, Security & Service Provider) certification(s) with
training locations throughout the United States, Europe, South Asia and
Australia. Be sure to visit our online communities at
www.ipexpert.com/communities and our public website at www.ipexpert.com

-----Original Message-----
From: Poplawski, James [mailto:jpoplawski_at_starkinvestments.com]
Sent: Wednesday, June 09, 2010 3:26 PM
To: 'Jack Router'; 'Tyson Scott'; ccielab_at_groupstudy.com
Subject: RE: Reg Experts!

I thought it was matching 100 or any combination of 100, IE 100 100 100 100
in the case of prepending.

The _100+ worked for my lab to allow the 100's through (9 of them prepended)
however the solution had the crazy ^([0-9]+)(_\1)*$ sequence for solution.

-----Original Message-----
From: Jack Router [mailto:pan.router_at_gmail.com]
Sent: Wednesday, June 09, 2010 2:22 PM
To: 'Tyson Scott'; Poplawski, James; ccielab_at_groupstudy.com
Subject: RE: Reg Experts!

What about 5th: _100+
Should it be: begins with 100 and has any number of 0s after it ?

As per DOC CD:
+ Matches one or more sequences of the character preceding the plus sign.

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Tyson Scott
Sent: 9-Jun-10 15:12
To: 'Poplawski, James'; ccielab_at_groupstudy.com
Subject: RE: Reg Experts!

James,

The first will deny only if the last AS in the path was 200
The second will deny if in the path 200 and originated in 300 but may have
additional AS's as well first.
The first one only allows two AS

The third will allow either 1 AS in the path or Null (Meaning local AS
prefixes.)
The fourth will match if 1 AS is in the path or if 1 AS plus the as 1 as the
originator in the path

The fifth is an AS that begins with 100 and has any numbers after it.
The sixth is the same as the third

Regards,

Tyson Scott - CCIE #13513 R&S, Security, and SP
Managing Partner / Sr. Instructor - IPexpert, Inc.
Mailto: tscott_at_ipexpert.com

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Poplawski, James
Sent: Wednesday, June 09, 2010 1:19 PM
To: 'ccielab_at_groupstudy.com'
Subject: Reg Experts!

Just going through Narbik's Regular Expression listings and using INE
"Understanding BGP Regular Expressions" for reference.

I have some questions if anyone can explain in people terms. Here goes.

What's the difference between?
       deny ^200_300$
       deny _200_300$

       ^([0-9]+)?$
       ^([0-9]+)(_1\)*$

       _100+
       ^([0-9]+)(_\1)*$

In regards to ^([0-9]+)(_\1)*$ why is the number 1 chosen? Why have it at
all? Why not have a 0 or a 2 in there? I'm still looking through
documentation on \.

Any help is appreciated, thanks!
JB

This transmission contains information for the exclusive use of the intended
recipient and may be privileged, confidential and/or otherwise protected
from disclosure. Any unauthorized review or distribution is strictly
prohibited. Our company is required to retain electronic mail messages,
which may be produced at the request of regulators or in connection with
litigation. Electronic messages cannot be guaranteed to be secure, timely or
error-free. As such, we recommend that you do not send confidential
information to us via electronic mail. This communication is for
informational purposes only and is not an offer or solicitation to buy or
sell any investment product. Any information regarding specific investment
products is subject to change without notice. If you received this
transmission in error, please notify the sender immediately by return e-mail
and delete this message and any attachments from your system.

Blogs and organic groups at http://www.ccie.net
Received on Wed Jun 09 2010 - 14:36:30 ART