RE: Sniffer on a Frame line... [7:2253]

[Parrish, Ben]

There are CSU/DSU's that will also act as a sniffer for frame-relay ckts.
They usually are ungodly expensive unless your carrier provides it for you.
Visual Networks comes to mind as as a manufacturer of these little toys.
The amount you can capture is dependent upon the amount of mem in the csu.
Not the best one out there but works very well.

Good Luck,
Ben Parrish

-Original Message-
From: John Neiberger [mailto:[EMAIL PROTECTED]]
Sent: Friday, April 27, 2001 11:15 AM
To: [EMAIL PROTECTED]
Subject: RE: Sniffer on a Frame line... [7:2253]


RJ45 does not equal Ethernet.  Are you thinking of placing an ethernet
hub  there?  If so, you have completely incompatible physical layers to
begin with.  A T-1 signal from a csu/dsu or an NIU is going to wreak all
sorts of havoc on an ethernet hub, most likely.

You also have completely different datalink layers, so you can't expect
an ethernet sniffer to have the slightest idea what is going on inside a
frame relay frame on a DS1.  This not unlike asking "Can I connect a
regular phone to an ethernet hub and listen in on a VoIP call?" 
Completely incompatible technologies.  You'd have to find a hardware
sniffer designed for frame relay.

HTH,
John

>>> "Rizzo Damian"  4/27/01 9:24:53 AM >>>
The RJ45 connection between the DSU/CSU and the wall jack. Would
putting a
hub between the two work? Then I could place a sniffer on the hub.




-Original Message-
From: Hire, Ejay [mailto:[EMAIL PROTECTED]] 
Sent: Friday, April 27, 2001 11:00 AM
To: [EMAIL PROTECTED] 
Subject: RE: Sniffer on a Frame line... [7:2253]

Frame over serial? (T1/Ds1/Ds3)  They would have to plug into a
Network
analyzer with a compatible interface, not a hub.  Most hardware
network
analyzers have pass-through connections that let you plug through the
analyzer to the router.

Good Luck,
Ejay

-Original Message-
From: Rizzo Damian [mailto:[EMAIL PROTECTED]] 
Sent: Friday, April 27, 2001 10:10 AM
To: [EMAIL PROTECTED] 
Subject: Sniffer on a Frame line... [7:2253]


Quick question for you all. If you were to break a Frame Relay
connection going into a router by first plugging it into a hub, then
connecting it to the router, for the purposes of plugging a sniffer
into
that hub to monitor all frame traffic, would this scenario work or not
so
much?   Thanks for your input!
 
 
 
   -Rizzo
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RE: Frame-relay problem [7:1986]

[Parrish, Ben]

I used the sample configs off of the Cisco TAC website.
http://www.cisco.com/warp/customer/125/fr_switching.html  
requires CCO login)

http://www.cisco.com/warp/public/125/index.shtml
(does Not require CCO login)

The first link is for frame-relay switching.  (i.e. one router acting as a 
frame switch.  Great if you have a 2522 to act as a switch.  This one is a 
little confusing due to the local signifigance of DLCI's but the switch
works great.
The second is a general link to sample configs dealing with frame-relay.
Good Luck,
Benjamin Parrish
CCNP,CCDP (CCIE written in 29 hours and counting)

-Original Message-
From: Justin M. Clark [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 25, 2001 6:12 PM
To: [EMAIL PROTECTED]
Subject: Frame-relay problem [7:1986]


my layout looks kinda like this:

(Computer1)--e0(router1)s0--z---s0(router2)e0--(Computer2)

router1/s0 is the DCE  so i do:
config t
frame-relay switching

then on both i do

encapsulation frame-relay
frame-realy interface-dlci 17
frame-relay intf-type dXe

i then do debug frame-relay lmi and it shows that dce and dte are up but now
i can no longer ping from computer1 to computer2.

but as soon as i switch back to HDLC it all works fine.

the wierd thing is, when i have frame-relay turned on, i cant even ping
router1/s0's ip address from router1.

any ideas?

--
Justin M. Clark
MCSE 4.0, MCSE 2000
CCNA, CCDA
[EMAIL PROTECTED]
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FW: CCIE Written Exam [7:2137]

[Parrish, Ben]

I have been told by several guys here that have taken the exam in the last 3
months, that the exam does not tell you the number of correct answers in a
multiple anwer question.  This does in effect make it that much more
difficult.  
Benjamin Parrish
(CCIE written exam in 23.5 hours and counting)

-Original Message-
From: Vincent Chong [mailto:[EMAIL PROTECTED]]
Sent: Thursday, April 26, 2001 12:13 PM
To: [EMAIL PROTECTED]
Subject: CCIE Written Exam [7:2137]


Hi;

I know the exam is Multiple Choice.

The questions will stated that how many answer is looking for or
not?

Thanks
Vincent
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