Switching Types [7:10569]

2001-07-01 Thread Swart Douwe

When we consider switching ie process, fast, silicon, optimum, distributed
and netflow, I believe that there is a default type for each protocol.

From the one book, the Cisco CIT Training guide, it says that Fast switching
is the default for all protocols except IP.  It says that optimum switching
is the default for IP, yet Optimum switching is only available on a Cisco
7500 router.

In the questions at the end of the chapter, it asks what is the default
switching type for IP, and it states the correct answer is fast switching.
As you can see, this contradicts the information stated previously.

I have searched around the cisco website to no avail.  There appears to be
articles referring to switching, but no article that stated definitely what
switching type is associated with which protocols.

Can anyone shed any light on this for me?

Is there a command that I can type to see the switching type in use?

Thanks in advance for your replies.

Douwe

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Ethernet Encapsulation on Cisco Routers [7:10582]

2001-07-01 Thread Swart Douwe

With IPX, the default encapsulation for cisco routers is novel_ether.

As there are also varying frame types and encapsulations that can be used in
straight ethernet, what would be the default encapsulation on a standard
Ethernet Segment connected to a cisco router?
You have your ethernet frame type, and your 802.3 frame type.  But what is
the default?

Once again, there is not a great deal of information on the web site that
points to this information.  

Is this a legitimate question?  Does anyone have any idea, or perhaps may
have a link to the site that contains an answer???

Thanks for your time in advance

Douwe

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Testing an ISDN NT1 Device [7:10358]

2001-06-28 Thread Swart Douwe

I am trying to confirm the number of a NT1 device so that I can configure an
ISDN dial up to this device.

Should you be able to call this device with a standard phone and hear a ring
tone?

Is there any other way you can test the device without getting the phone
company involved?

Thanks


Douwe

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Cisco Password Tools [7:9894]

2001-06-25 Thread Swart Douwe

Is anyone aware of any password decoding tools.

I have a copy of  the show run of a working router, which contains the
password to access the vty port on a router.  

I need to get into the router to troubleshoot some issues, but I cannot log
onto the vty port as the user has forgotten the password.  

I know that I can use the console port, but I am not on site.

The password key encryption starts with a 7.

Any tools would be greatly appreciated.

Thanks

Douwe 

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True Throughput on ISDN and Frame Relay [7:8445]

2001-06-13 Thread Swart Douwe

On a 64K dedicated ISDN line, copying a file across, we receive a throughput
of around 10kbps.  I assume that the fact that we are getting 10K rather
than closer to 64K is due to encapsulation and latency etc etc.

Is there anyway to calculate the exact throughput you should be getting on a
particular connection?

Am I making sense on this, or am I just nutty???  :-)

Thanks

Douwe

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Bandwidth Testing and Monitoring [7:8088]

2001-06-11 Thread Swart Douwe

Is anyone aware of an application or tool that I can use to monitor the
exact bandwidth available on a Frame Relay or ISDN connection?

The purpose of this is for software testing I need to determine the exact
bandwidth requirements and load on either a Frame or ISDN connection.

Is there any software applications that can do this, or do I need to look at
a hardware device to do so?  Any recommendations on software or hardware?

Any help that anyone could give would be greatly appreciated.

Thanks

Douwe


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RE: Bandwidth Testing and Monitoring [7:8088]

2001-06-11 Thread Swart Douwe

Thanks for your reply Brian.

Will the snmp gathering only give you the packet status and the
configuration that you put into the interface configuration?

What I am trying to gather is whether the bandwidth that we think we have is
actually what we have available to us?

Will the snmp gathering allow us to do this


Douwe

-Original Message-
From:   Brian [mailto:[EMAIL PROTECTED]]
Sent:   Tuesday, June 12, 2001 10:20 AM
To: Swart Douwe
Cc: [EMAIL PROTECTED]
Subject:Re: Bandwidth Testing and Monitoring
[7:8088]

snmp gathering on the relevant serial interface??

Brian Sonic Whalen
Success = Preparation + Opportunity


On Mon, 11 Jun 2001, Swart Douwe wrote:

 Is anyone aware of an application or tool that I can use
to monitor the
 exact bandwidth available on a Frame Relay or ISDN
connection?

 The purpose of this is for software testing I need to
determine the exact
 bandwidth requirements and load on either a Frame or ISDN
connection.

 Is there any software applications that can do this, or do
I need to look at
 a hardware device to do so?  Any recommendations on
software or hardware?

 Any help that anyone could give would be greatly
appreciated.

 Thanks

 Douwe


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 contain privileged information intended only for the use
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 named above. If you are not the intended recipient of this
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 hereby notified that any use, dissemination, distribution
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 this message is prohibited. If you have received this
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 please notify Traveland Pty Ltd immediately by return
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 expressed in this message are those of the individual
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 necessarily reflect the views of Traveland Pty Ltd..
[EMAIL PROTECTED]



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RE: Collisions on Ethernet Lan

2000-08-31 Thread Swart Douwe

I think Cisco have it down in there DCN book as anything greater than 30%
represents problems

But they say this is just a base figure...and that it may vary either side
slightly

HTH

Douwe


-Original Message-
From: John Neiberger [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 31, 2000 1:23 AM
To: [EMAIL PROTECTED]
Subject: Re: Collisions on Ethernet Lan


Are you having an excessive number of collisions?  Why are you trying to
reduce them?  Collisions are there by design.  Off the top of my head I
forget what percentage of collisions is considered "Bad", but I believe it
was 20%.  Someone will correct me if I'm wrong on that.  Unless you are
seeing more than that or it's causing noticable performance problems, don't
worry about it.

  Hi,
 HOw do I reduce the collisions on the ethernet 
  LAN. 
  I am using a cisco 2600 router with an ethernet 
  port
  My switch is CATALYST 1900 series.
  
  Please help me.
  
  regards
  Raj
  
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RE: Collisions on Ethernet Lan

2000-08-31 Thread Swart Douwe

My apologiesI was thinking of utilisation
Well, at least you have an answer fot utilisation if anyone wants to know
that.



-Original Message-
From: Swart Douwe [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 01, 2000 8:31 AM
To: 'John Neiberger'; [EMAIL PROTECTED]
Subject: RE: Collisions on Ethernet Lan


I think Cisco have it down in there DCN book as anything greater than 30%
represents problems

But they say this is just a base figure...and that it may vary either side
slightly

HTH

Douwe


-Original Message-
From: John Neiberger [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 31, 2000 1:23 AM
To: [EMAIL PROTECTED]
Subject: Re: Collisions on Ethernet Lan


Are you having an excessive number of collisions?  Why are you trying to
reduce them?  Collisions are there by design.  Off the top of my head I
forget what percentage of collisions is considered "Bad", but I believe it
was 20%.  Someone will correct me if I'm wrong on that.  Unless you are
seeing more than that or it's causing noticable performance problems, don't
worry about it.

  Hi,
 HOw do I reduce the collisions on the ethernet 
  LAN. 
  I am using a cisco 2600 router with an ethernet 
  port
  My switch is CATALYST 1900 series.
  
  Please help me.
  
  regards
  Raj
  
  -
  This mail sent through  http://www.sify.com
  
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syslog

2000-08-28 Thread Swart Douwe

I have been through the cisco site to see what they recommend in the way of
syslog daemons to capture syslog information.

Does linux (Any variety) have the syslog daemon installed, or installable?

I have downloaded the Kiwi software syslog daemon - what do others prefer
for reliability and simplicity?

Thanks for your time

Douwe


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RE: 2610 routers back to back

2000-08-27 Thread Swart Douwe

I have 2 2500's hooked up back to back.  I used the command show controller
s 0 etc to make sure that the router was identifying the cable correctly.
Look for the DCE or DTE setting that appears in the output from this
command.

I then set the clock rate on the DCE ports that have the cables attached
using the command "clockrate 400"  THis is the highest throughput I
could get on this port.  

I havent put in any encapsulation or anything like that.  Mine works
fine...I can route traffic through it without a problem.

I would be interested to hear if anyone has actually had success configuring
it to work properly setting the different ecapuslations etc

Cheers

Douwe




-Original Message-
From: Ravi Kumar [mailto:[EMAIL PROTECTED]]
Sent: Saturday, August 26, 2000 3:08 PM
To: Zhang Hui; [EMAIL PROTECTED]
Subject: 2610 routers back to back


hi friends

i too  have one doubt

I am going to buy two 2610 routers for my training center.

will a CSU/DSU cable, which is working with 2500 series routers, work with
2610 routers also?  or shall i go for new one??

over all two 2610 routers can be connected back to back through leased line
ports for training

your earliest valuble input is highly appreciated.

with regards


"Zhang Hui" [EMAIL PROTECTED] wrote:
Hi,there:

I connected router 2611's serial0/0 to 2501's serial1 with a DTE to DCE
cable, and set clockrate ,keepalive,encap HDLC. But they could not work yet.

   Who can help me ?

   Thanks in advance...




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Not 1 answer FW: Load Balancing On 2503 Serial Ports

2000-08-23 Thread Swart Douwe

Guys and Gals.

I didnt receive one response to this.is this because it is not possible,
or just too difficult to implement

Any response would be appreciated.

Thanks

Douwe



Gday everyone

Setting up a lab, and following on from my last email about the maximum
throughput using a DCE-DTE cable on a serial port achieving a maximum of
4mbps. (DCE serial port set with clockrate 400)

Nowobviously the speed is a little slow, so I decided to buy a second
cable to hook up to the second serial port on both routers and do a little
load balancing.

Having never configured load balancing in this manner before, I went looking
through the cisco site to see what I could find.  The only thing I could
find was "Multilink Via Virtual Template on 2 Serial Interfaces".  I guess
ultimately this will achieve what I am after, but it not the same method of
configuring that I would have used.

Has anyone had any success with loadbalancing 2 serial ports for a lab
environment? 

I guess there are a number of issues that come to mind...and if any of you
have any thoughts, experience, or good sites that I could visit, I would be
grateful.

Do I need to setup a lookback address for each router, and assign each
serial port to use ip unnumbered and the ip address of the loopback?  Is
this the best way to get the load balancing to work?

I want permanent load balancing so that the full 8mb is permanently
available to all traffic.  Obviously I need to set the load threshold to 0
or 1 (I cant quite recall which one)?

If I allocate an IP address to each interface, and I am using static
routing...do I need to reallocate the routes to the new interface?



Sorry if some of these questions seem obscure, but you know how it is when
sometimes you are looking so closely at something that you fail to see the
bigger picture.

Thanks in advance for your time and effort

Douwe


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Load Balancing On 2503 Serial Ports

2000-08-22 Thread Swart Douwe


Gday everyone

Setting up a lab, and following on from my last email about the maximum
throughput using a DCE-DTE cable on a serial port achieving a maximum of
4mbps. (DCE serial port set with clockrate 400)

Nowobviously the speed is a little slow, so I decided to buy a second
cable to hook up to the second serial port on both routers and do a little
load balancing.

Having never configured load balancing in this manner before, I went looking
through the cisco site to see what I could find.  The only thing I could
find was "Multilink Via Virtual Template on 2 Serial Interfaces".  I guess
ultimately this will achieve what I am after, but it not the same method of
configuring that I would have used.

Has anyone had any success with loadbalancing 2 serial ports for a lab
environment? 

I guess there are a number of issues that come to mind...and if any of you
have any thoughts, experience, or good sites that I could visit, I would be
grateful.

Do I need to setup a lookback address for each router, and assign each
serial port to use ip unnumbered and the ip address of the loopback?  Is
this the best way to get the load balancing to work?

I want permanent load balancing so that the full 8mb is permanently
available to all traffic.  Obviously I need to set the load threshold to 0
or 1 (I cant quite recall which one)?

If I allocate an IP address to each interface, and I am using static
routing...do I need to reallocate the routes to the new interface?



Sorry if some of these questions seem obscure, but you know how it is when
sometimes you are looking so closely at something that you fail to see the
bigger picture.

Thanks in advance for your time and effort

Douwe


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RE: Color codes/Pinouts

2000-08-15 Thread Swart Douwe

Im pretty sure that the colour coding may vary depending on the type of
cable/adapter that you are using.  

Probably best to look at the pins on the adapter or connector, and try and
determine it from what you have in front of you.

I have seen all kinds of wierd cabling/adapters etc

HTH

Douwe

-Original Message-
From: Briggs [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 16, 2000 3:09 AM
To: [EMAIL PROTECTED]
Subject: Color codes/Pinouts


I think I found the pinouts listed on the cisco web site for DB9 to RJ45
module (for console connection) but can anyone give me the color scheme?
Like Blue to one, Brown to two, yellow to three, etc?  I'd really
appreciate it.  thanks.


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Load Balancing 2503

2000-08-15 Thread Swart Douwe


 COnnecting two 2503's with a DCE to DTE serial cable to simulate a WAN
 connection between 2 different subnets.  I believe the maximum speed for
 this type of connection is 4mbps?  (Clock rate 400 setting on the
 serial port that is acting as the DCE device)
 
 I have serached the cisco archives for information on beefing up this
 connection, but I believe that this is the highest throughput you can get
 with this type of connectionhas anyone seen anything different?
 
 The other option that I am looking at is connecting the second serial port
 on each router with the same type of cables and setting up load balancing
 to get a total throughput of 8Mbps.  Has anyone tried this and had any
 success or failures?
 
 The cable that I am using is DB60-V35-V35-DB60.
 
 ANy other ideas to boost the bandwidth would be appreciated...or pointers
 to the Cisco site...that I may have missed.
 
 THanks for the informative and interesting site..keep up the good work
 everyone...and keep studying hard
 
 Cheers
 
 Douwe
 

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BSCN Material

2000-08-09 Thread Swart Douwe

I am sure this has been asked before, but I am unable to find it in the
archivesso here it is againI hope you don't mind - 

Has anyone found a particularly good book that covers BSCN?

One that is concise, appropriate, and as bug free as possible.

Thanks for your help :-)


Douwe 

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DCE to DTE Cable

2000-08-08 Thread Swart Douwe

I have been looking around on the Cisco web site to purchase a DTE to DCE
serial cable so that I can connect 2 2500's via the serial ports.

The cable must be db60 male to db60 male. 

Does anyone know the part number???  (I have tried the cisco site, and cant
find this cable).  I know that there are third party companies that make the
cable, but I am after a Cisco one if I can get it.

THanks for your help


Douwe

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Run out of IP addresses.

2000-07-31 Thread Swart, Douwe

I was reading an article the other day for CCDA, and it raised the following
question -

You support a network getting close to using their complete range of ip
addresses.  They need to add another 30 computers and hence IP addresses.
They do not have 30 IP addresses.  How would you configure this, and why?

Now, I don't know if this is possible, but I thought of allocating the new
machines IP addresses on a different physical subnet, but same physical
media (ie original network uses 192,168.1.1-255, allocating second network
192.168.2.1-255).  Allocating the existing router a primary and secondary ip
address on the ethernet port.  The primary being for the existing network,
and the secondary being for the new network addresses that you are
configuring.
Set the default gateway on the new machines for the existing router, so all
DNS, WINS, DCHP requests can be met by servers on the existing network,
obviously be enabling routing between the 2 networks.

Do you think this would work???  Any other ideas?  I was thinking any router
with a single ethernet interface could carry this out using primary and
secondary addressingis this possible, or would you need a dedicated
router with 2 ethernet ports, and maintain both networks on separate network
media.

Thanks for your help and ideas

Douwe

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RE: Run out of IP addresses.

2000-07-31 Thread Swart, Douwe

These are internal addresses only, and don't need access to the Internet.
Just need the addresses for new machines.


Douwe Swart
Network Administrator
Traveland Pty Ltd
Ph:  (02) 9552 9260
Fax: (02) 9552 9356


-Original Message-
From:   Jay Hennigan [mailto:[EMAIL PROTECTED]]
Sent:   Tuesday, August 01, 2000 9:21 AM
To: Swart, Douwe
Cc: '[EMAIL PROTECTED]'
Subject:Re: Run out of IP addresses.

On Tue, 1 Aug 2000, Swart, Douwe wrote:

 I was reading an article the other day for CCDA, and it
raised the following
 question -
 
 You support a network getting close to using their
complete range of ip
 addresses.  They need to add another 30 computers and
hence IP addresses.
 They do not have 30 IP addresses.  How would you configure
this, and why?

Hint:  NAT.

-- 
Jay Hennigan  -  Network Administration  -  [EMAIL PROTECTED] 
NetLojix Communications, Inc.  NASDAQ: NETX  -
http://www.netlojix.com/
WestNet:  Connecting you to the planet.  805 884-6323 

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RE: MRTG on Windows NT

2000-07-25 Thread Swart, Douwe

Are you running it on NT, or on a Unix box?

There is a lot of config and playing around to do.  The first thing that I
noticed was the instructions for  NT and the zip files do not correlate, so
you need to go through and modify the directories that the docos point to.
You will find everything that you need in the mrtg\mrtg directory and the
mrtg\mrtg\run directory.
I have replaced the advides mrtg5.21. (or whatever it is) for a simpler
mrtg.

Does this make sense?  I hope it helps

Douwe
-Original Message-
From:   Leon Bass [mailto:[EMAIL PROTECTED]]
Sent:   Tuesday, July 25, 2000 11:04 PM
To: Swart Douwe
Cc: 'Erwin Novriyanto'; '[EMAIL PROTECTED]'
Subject:Re: MRTG on Windows NT

Well,

You guys are lucky, I get the service to run, but I have
not been able to get anything to start, any helpful hints???

"Swart, Douwe" wrote:

 I have been playing around with this for a while too.

 There does not appear to be a great deal of information
around.  I have not
 had much success as yet.  I will let you know if I have
any major
 breakthroughs.

 Please let me know if you have the same.

 Have you found a way in MRTG where you can monitor the
total amount of data
 passing across a link, rather than just the bandwidth
utilisation?

 Cheers

 Douwe
 -Original Message-
 From:   Erwin Novriyanto
[mailto:[EMAIL PROTECTED]]
 Sent:   Monday, July 24, 2000 6:23 PM
 To: [EMAIL PROTECTED]
 Subject:MRTG on Windows NT

 Dear All,

 I want to make MRTG on Windows NT for
viewing our network
 performance, can
 anybody help me for the instruction. Like
documentation for
 that,...thanks
 for your help.

 Bye

 Erwin

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RE: MRTG on Windows NT

2000-07-24 Thread Swart, Douwe

I have been playing around with this for a while too. 

There does not appear to be a great deal of information around.  I have not
had much success as yet.  I will let you know if I have any major
breakthroughs.

Please let me know if you have the same.

Have you found a way in MRTG where you can monitor the total amount of data
passing across a link, rather than just the bandwidth utilisation?

Cheers

Douwe
-Original Message-
From:   Erwin Novriyanto [mailto:[EMAIL PROTECTED]]
Sent:   Monday, July 24, 2000 6:23 PM
To: [EMAIL PROTECTED]
Subject:MRTG on Windows NT

Dear All,

I want to make MRTG on Windows NT for viewing our network
performance, can
anybody help me for the instruction. Like documentation for
that,...thanks
for your help.

Bye

Erwin

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RE: Access-lists question??

2000-06-15 Thread Swart, Douwe

Use a terminal emulator (I know Procomm Plus does this) and cut the access
list.  Put it to notepad and edit the list just the way that you want it in
the correct order.

You will need to prepend to this list the correct access list command and
access list number that you want to use.  Then paste this back into the
router config mode command.  This will add in the new access list, in the
correct order...Or you can rewrite the whole list manually again.

I am sure that there is an easier way to do this again.but that is the
way that we do ours.

The deny all is implicit...and is applied at the end of your access list.


Douwe 

-Original Message-
From:   Palikhey, Niraj [mailto:[EMAIL PROTECTED]]
Sent:   Friday, June 16, 2000 2:22 AM
To: '[EMAIL PROTECTED]'
Subject:Access-lists question??

Hi, 
I am trying to understand something with access-lists. They
say that when
you put in a new entry to an existing access-list, it will
be written at the
end of the existing list. So If I have a deny any any at the
end of the list
and I add a new entry that says permit 10.20.16.20, this
will not work as
this entry will be added at the end of the list. But when I
do a sh
access-lists or a sh run, I see that the new entry is not at
the bottom of
the existing list. I am trying to understand, even though it
is not at the
bottom, when the access-list is read, will it find it before
the deny any
any or not? Moreover, I have read that the Cisco IOS will
rearrange the
list. Is this the reason that the new entry does not show at
the bottom but
will work as entered in the end?
Please advise.
Thank you.
Kind regards,
Niraj

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RE: CCNA badge

2000-06-08 Thread Swart, Douwe

It took me about 4 weeks to get my logo.  The information that they send out
to you gives you a link to get the logo, but the link doesn't work.

I actually managed to get it another way (Im sorry I cant recall off the top
of my head how) but when I got to the site, it didn't actually work either.


SoI sent them an email, which I didn't get a reply to, then about 3
weeks later I received about 5 copies of the logo via email.

So, all I can say is good luck.

Douwe

-Original Message-
From:   Ole Drews Jensen [mailto:[EMAIL PROTECTED]]
Sent:   Friday, June 09, 2000 5:23 AM
To: '[EMAIL PROTECTED]'
Subject:CCNA badge

 As with Microsoft, I think that one of the hardest things
about Cisco is
 to find something on their website.
 
 I have now tried to follow two different directions from
Cisco, but I am
 still not able to find the CCNA badge (logo)
information/download
 anywhere.
 
 Does anyone have a valid link?
 
 Thanks,
 
 Ole
 
 ~
  Ole Drews Jensen
  Systems Network Manager
  CCNA, MCSE, MCP+I
  RWR Enterprises, Inc.
  [EMAIL PROTECTED]
 ~
 

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RE: Serial numbers for routers

2000-05-15 Thread Swart, Douwe

Show version will give you the answer


-Original Message-
From:   Ralf-Peter Müller [mailto:[EMAIL PROTECTED]]
Sent:   Tuesday, May 16, 2000 4:24 AM
To: [EMAIL PROTECTED]
Subject:Re: Serial numbers for routers

Hi,

try "show version" and/or "show diag"


cu

Nodir Nazarov wrote:

 Hello,

 is there any way to get serial numbers of cisco routers
and modules for
 these routers using command line ?

 Thanks,
 Nodir

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