The first thing I would do is determine whether or not you need to load
share for outbound bandwidth. Typically an enterprise will have a lot more
inbound traffic than outbound traffic, so if one of the circuits exceeds
your outbound bandwidth needs by 30% or more, you may not need to load share
PROTECTED]
Sent: Monday, September 08, 2003 11:58 AM
To: Lupi, Guy; [EMAIL PROTECTED]
Subject: RE: vlan urgent [7:74955]
Theoretically, you don't even need a switch in the middle. If these are
ISP-connected routers, and the firewall is doing the NAT, then the three
routers must be doing BGP
It may help to think of it this way. When you have a single physical and
logical interface, it is easy for the router to determine how to process the
incoming/outgoing traffic, it just uses the attributes assigned to the
interface, that is its only option.
When you add a subinterface, while you
sure
someone on the list does though.
-Original Message-
From: Richard Orabone [mailto:[EMAIL PROTECTED]
Sent: Friday, September 05, 2003 9:58 AM
To: [EMAIL PROTECTED]
Subject: RE: Stuck on Subinterfaces - HELP! [7:74854]
Thanks for the detailed description Guy. That helps quite a bit. I
If someone could recommend some companies I would appreciate it.
Guy H. Lupi
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Identify old worms and viruses, be updated to recognize new ones and
generate alarms.
Must be configurable so that custom packet combinations and IP's that exceed
a certain packets per second threshold can be defined and generate alarms.
Thanks in advance.
Guy H. Lupi
Message Posted at:
http
You need one of the following in a 2600 or 3600 (you can also get them as
port adapters for larger routers). The configuration that you have right
now is not going to work.
http://www.cisco.com/en/US/products/hw/modules/ps2797/products_tech_note0918
6a00800ad36f.shtml
NM-1CT1-CSU One-Port
Anyone see any anouncement on 12.3 being last relase of IOS for
2500 and 2600 routers. The new T line does not have any images
for anything other than the XM series of the 2600 and the 2691.
I guess this partly because they repackaged all the images and smallest
thing they have is called IPBASE
We use CEF quite a bit, over 200 remote nodes with multiple circuits, it
works out very well for us. The load on the circuits is always very close,
I couldn't tell you with any certainty that it is within 1 to 2 percent
though.
I have had 2 issues with CEF in the past 2 years, and both involved
Collisions would be normal on a 10 half link, but the output errors are a
little odd. Are the interfaces reporting late collisions and interface
resets also? If so, I would try changing out the cable, late
collisions/repeated interface resets usually indicate a bad cable or bad
hardware.
Of
This may be different in some IOS version, but in every version I have used
static routes pointing to an interface maintain the static route
administrative distance of one. (IP addresses removed to protect the
innocent ;)
Via interface:
ip route x.x.x.x 255.255.255.240 Serial3/0/0/7:0
Not with an NSE-1, but I had a similar problem with 2 separate NPE-300s,
same fix, Cisco sent replacement parts.
-Original Message-
From: Keith Woodworth [mailto:[EMAIL PROTECTED]
Sent: Friday, June 20, 2003 1:07 PM
To: [EMAIL PROTECTED]
Subject: 7206vxr Watchdog Hardware reset [7:70990]
Something else to remember is that with web traffic, the outgoing request is
tiny, the return traffic from the server is what is going to utilize the
majority of the bandwidth. If you are going to use GTS, it only works on
outbound traffic on an interface, so you would apply this to the Ethernet
Kiwi CatTools works very well for configuration backups and is inexpensive
(it might be free, I don't recall).
http://www.kiwisyslog.com/
-Original Message-
From: Stevo [mailto:[EMAIL PROTECTED]
Sent: Monday, June 02, 2003 12:37 PM
To: [EMAIL PROTECTED]
Subject: Router Configuration
Try changing the baud rate on your serial connection to 115200, this is done
within your terminal program, and see if the output is legible. If not, try
all the speeds one by one.
-Original Message-
From: Funnell Giles [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 29, 2003 9:19 AM
To:
nmap is an excellent tool, go to www.insecure.org. Be very careful with it
though, you can cause outages if you don't know how to use it properly, read
the documentation carefully.
-Original Message-
From: johnman johnman [mailto:[EMAIL PROTECTED]
Sent: Friday, April 04, 2003 3:42 PM
To:
You should be able to do this with no issues, see the following example.
route-map Prepend permit 10
match ip address prefix-list Prepend-192.168.1.0
set as-path prepend 400
!
route-map Prepend permit 10
match ip address prefix-list Prepend-192.168.2.0
set as-path prepend 500
ip prefix-list
And that second sequence in the route map should read permit 20 not 10.
-Original Message-
From: Lupi, Guy
Sent: Friday, March 28, 2003 9:52 AM
To: [EMAIL PROTECTED]
Subject: RE: route-maps from one neighbor [7:66371]
You should be able to do this with no issues, see the following
And that second sequence in the route map should read permit 20 not 10.
-Original Message-
From: Lupi, Guy
Sent: Friday, March 28, 2003 9:52 AM
To: [EMAIL PROTECTED]
Subject: RE: route-maps from one neighbor [7:66371]
You should be able to do this with no issues, see the following
the tunnel setup so that the PIX sees IP only?
Guy H. Lupi
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Can you create bandwidth graphs based on CAR policies? I would like to be
able to create multiple policies matching access lists on an interface, and
graph them separately to find out how much usage each policy is seeing.
Guy H. Lupi
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Are both of these T1s from the same provider, or is one from Sprint and one
from Qwest? From looking at your NAT pools, and the whois information
(below), it appears to be one from Sprint and one from Qwest. I am not sure
how the router would make the decision when doing PAT, but it is going to
Does anyone know of a company that will take Veterans Benefits for the CCIE
lab training? I called the Veterans office, they don't know. I called a
few training companies ... Knowledgenet, CCprep and others ...
I know this isn't a technical question, but it is a CCIE lab question.
Thanks!
I have never heard of a performance boost by going with one or the other,
PPP does support some things like quality monitoring and authentication that
are useful in certain situations. One thing to be aware of is that some
vendors only support PPP encapsulation, with others supporting both PPP
Can Veterans receive assistance for CCIE lab training programs? I hope you
guys have the answer.
Best regards,
Randy
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I heard that there are a lot of good Job opportunities is Saudi Arabia for a
CCIE ... has any one heard of good job opportunities for CCIE candidates?
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Like you said, if both circuits are the same bandwidth then load balancing
will work. If they are not the same bandwidth, you can still load balance
by manipulating the cost so that it is the same for both circuits, but once
you reach the maximum bandwidth on the lower bandwidth circuit, the
Does anyone know if the 6509 has a 23 telco rack mount kit? I can't seem
to find one. Thanks.
Guy H. Lupi
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Can anyone recommend a good vendor independent book on VOIP, something that
goes into detail on the different protocols, codecs, so on and so forth? I
am looking for something that takes you through VOIP in detail, not just
basic stuff. Thanks.
Guy H. Lupi
Message Posted at:
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Ultimately the functionality would be the same, I prefer to use the least
amount of hardware possible to acheive a result, I feel it makes
troubleshooting and administration easier. That being said I would use a
layer 3 switch in this situation.
-Original Message-
From: [EMAIL PROTECTED]
Are the links going to be connected to the same routers on both sides? If
so, then you can use static routes and CEF per-packet load sharing, you
would have to place 2 static routes in each router for the IP blocks that
the other router serves, give the command ip cef in global configuration
You may also want to have a look at this link NAT on a stick:
http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080
094430.shtml
It isn't one arm routing, but you should be able to connect your dsl to your
switch, your router to your switch, and make this work without
Packeteer makes a great product, the Packetshaper. It works very well,
check it out:
www.packeteer.com
-Original Message-
From: Chris Headings [mailto:[EMAIL PROTECTED]]
Sent: Sunday, January 26, 2003 3:33 PM
To: [EMAIL PROTECTED]
Subject: Bandwidth Restriction [7:61916]
Hey all...
If Provider 1 is large enough, they should be able to assign you a class C
that they do not aggregate when they make their announcements to other
providers. I would suggest asking them for one of these, if they want to
keep your business they will get it to you one way or the other.
Another
I usually get the max memory possible, but I believe that 128Mbps per VIP is
the minimum required to run distributed CEF.
-Original Message-
From: Lauren Child [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 10:46 AM
To: [EMAIL PROTECTED]
Subject: VIP memory sizing? [7:60962]
hi, anybody needs a isdn simulator for 400$ brand new ?,email me for detail
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
BTW, wasn't Mother Teresa also a CCIE?!
;)
From: Howard C. Berkowitz Reply-To: Howard C. Berkowitz To:
[EMAIL PROTECTED] Subject: Re: CCIE Vs. BS or MS degree [7:59481]
Date: Sun, 5 Jan 2003 04:33:23 GMT At 1:21 AM + 1/5/03, nrf
wrote: Howard C. Berkowitz wrote in message
[EMAIL
I think this may be a da15 connector. The pairs are 1,9 and 3,11.
Can't remember if 1 goes to 3 or 1 goes to 11. Larscom has lots of
info on this type of stuff.
I suspect you have even a bigger problem. Since this is a channelised
board I suspect you will not be able to just connect them back
All the configuration would go on the Adtran, the hssi is configured exactly
as a serial interface connected to an external csu/dsu would be. Probably
doesn't need to be included, but here is a sh run int hssi1/0 from a
production router with an Adtran and hssi.
interface Hssi1/0
description
the threshold for an alarm notification when polling for iferrors.
Guy H. Lupi
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Caslow p.90.
When you have a frame relay configured on sub-interfaces, you remove the
need for manual
mapping statements for NBMA PVC connections. PtoP remove the need for
mapping since only
one destination at the other end. Ok, this makes sense and sounds like
normal ppp serial
connection
Try changing the cable.
-Original Message-
From: Richard Campbell [mailto:[EMAIL PROTECTED]]
Sent: Thursday, December 12, 2002 2:45 AM
To: [EMAIL PROTECTED]
Subject: high CRC and runts error [7:59049]
Hi.. I have a switch port with high CRC and runts errors with no collision.
The
Would be nice to know but I doubt you will get a answer since you
then know what they can and can't test on.
Only one for sure is token ring.
They said no token ring after nov 4 so why would they have a interface
What is even more of a issue is that they took out the 2500's
Now they can test all
try to check layr 1 and 2 of the physical port 3/1, and the vlans that they
are in, check the show int 3/1 command, and please post it.
guy
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Marc, thank you. Eicon is what I am looking for. Using better search terms
now, I am also getting links for cheaper alternatives. Thanks
Hi Cable,
A normal PC serial port is async, as in U.Async.R.T, so will not connect
to standard sync cisco port. If you really want to run sync then yes,
you
Yes, that describes the loopback plug. But, loopback isn't just a crossing
of the wires, but a state the router is in as well. If there is a fault in
the wiring, or csu/dsu is put in loopback mode, the router will see and
change to loopback mode which you can see in show controllers. Why? What
The fact that you can dial into the Internet is more proof that you can run
TCP/IP over the PC's serial port.
Hmm, why do people need proof of this? Maybe I should read the archives.
Tcp/ip can be bound to anything. Build an interface that sends electrical
signals down two thin water streams,
Because you seemed to want to build hardware to do it!? Neither additional
hardware nor software should be necessary to do what you said in the first
line of your message: I would like to create IP connectivity from PC
serial
port to router serial port directly.
Yes, but using Hyperterminal as
Ah, you want remote access. You want to let the PC join the network even
though it's connected via its serial port. That's very doable. It used to
be
pretty common for PCs to connect that way in the olden days.
Check out the Cisco docuemntation on terminal services or access servers.
Or
maybe
When you put a hardware loopback plug on a serial to test it, why does the
router see it as a loopback? With the show int serial command, you will see
-serial up, line protocol up (loopback mode)-
Of course it needs to see it as loopback otherwise the router wouldn't
operate and allow
I am trying to clear arp-cache in IOS 12.1 and get unexpected results. Below
you see debug arp turned on, the current arp cache, then the clear command.
Immediately, the router sends out arp requests for the entries that were in
the cache.
Why does the router immediately send arp requests when I
I would like to create IP connectivity from PC serial port to router serial
port directly. Same as telnetting from one router serial port to another in
a back to back situation, but there is of course no tcp/ip stack on the PC's
serial port. The PC's network adapter install process does not
Priscilla got #1. Here is number two which is harder. I reworded it to
narrow the focus. This is not about Cisco IOS. (tricky arp caches and
timeouts, nat, proxy arp ect...). It is PCs and hubs mainly, and routers and
switches just in the basic sense that routers separates broadcast domains
and
Priscilla got #1. Here is number two which is harder. I reworded it to
narrow the focus. This is not about Cisco IOS. (tricky arp caches and
timeouts, nat, proxy arp ect...). It is PCs and hubs mainly, and routers and
switches just in the basic sense that routers separates broadcast domains
and
Priscilla, your comments kept me busy all morning sniffing packets and
reading
RFCs. I'd like to ask you something off the list. I can't see your private
email. Can you send me a private email please?
Message Posted at:
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,
bandwidth usage totals, and website hits. Does anyone know of a product
other than WebTrends, they are really expensive.
Guy H. Lupi
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layout for your scenario? If not, provide reasoning.
#1 is not so difficult, it is meant to start your thinking for #2.
Cable Guy
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0x2142, same story. So I tried to load a new IOS on one, it
took it but still has the same problem. Anyone out there know how I can fix
this? Thanks.
Guy H. Lupi
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There is not enough information here to really help you, from a static route
perspective 2 routes, one with a higher admin distance for the T1 will work
quite well. You should probably run a routing protocol in this scenario, so
that in the event that the T3 line is taking so many errors that it
The following link has a configuration example of TCP load distribution
using NAT, that command is there:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ip_c
/ipcprt1/1cdipadr.htm#xtocid2215662
-Original Message-
From: Karl West [mailto:[EMAIL PROTECTED]]
I would think about going with a 6509, the 5500 series has been eol'd, but
the last support dates are a while away yet.
-Original Message-
From: Stuart Pittwood [mailto:[EMAIL PROTECTED]]
Sent: Saturday, September 28, 2002 2:12 PM
To: [EMAIL PROTECTED]
Subject: Confused about Catalyst
I would start with Basaam Halabi's Internet Routing Architectures, it is a
great reference and you can probably pick it up used at a very reasonable
price, and it isn't too large. From there I would go to Routing TCP/IP
Volume II, it has a very large and detailed BGP section.
~-Original
I don't know of any reason to reload a router for maintenance purposes,
generally if the router is operating correctly it can be left alone. The
only reason for a periodic reload that I could think of would be if you have
a large amount of subinterfaces which get deleted and created, because the
Does anyone know if this ADSL router is compatible with Covad's ADSL
service? Couldn't find it on Cisco's website. Thanks.
Guy H. Lupi
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Ok, not the 806 because that is dual Ethernet, should have checked the
product description more carefully. Does anyone know if Cisco sells an ADSL
router that will work with Covad's ADSL service?
-Original Message-
From: Lupi, Guy
Sent: Friday, September 20, 2002 12:52 PM
To: [EMAIL
Has anyone out there used the Channelized OC12 cards on the 1 series
routers? Do they really go down to the channelized T1 level? Any problems
with them, concerns? Thanks.
Guy H. Lupi
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This link is for the single slot reload feature, but I have never seen any
type of command to actually execute the single slot reload, this may just be
a feature that the router can use to reload only a single problem card
automatically in the event that it finds it has to reload that card.
Is anyone out there using Marconi's ServiceOn network management platform to
manage their entire network, not just their ATM stuff? If so how do you
like it?
Guy H. Lupi
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What happens if you enable an 802.1q trunk instead? The same thing?
-Original Message-
From: Maria [mailto:[EMAIL PROTECTED]]
Sent: Monday, August 19, 2002 7:55 AM
To: [EMAIL PROTECTED]
Subject: Problem with Catalyst C1912 2924-XL [7:51637]
Hello everyone,
I have
I need at least 128k Internet access in Buffalo NY, not ISDN, that can be
delivered in less than 10 days. Anyone know of a company up there that can
do that?
Guy H. Lupi
CCIE No. 9275
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forward it to the group because I found it so helpful. It is about an hour
long but definitely worth it.
http://www.nanog.org/mtg-0006/real/ospf-isis.ram
Guy H. Lupi
CCIE No. 9275
Message Posted at:
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Try it without the login local command under the vty, then the router should
just prompt you for the password you configured under the vty lines when you
telnet in.
-Original Message-
From: McHugh Randy [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 09, 2002 6:36 PM
To: [EMAIL
Can the server initiate a tcp connection to you? Have you checked the NAT
mapping to ensure you are allowed to initiate connections to that server?
It sounds like when the server pings you, it opens a hole through NAT
allowing you to then initiate a connection to it through that hole. This
You can use ip unnumbered with or without PPP, depending on how your
provider is set up. You would just use ip unnumbered to the ethernet port
or to a loopback interface, whichever you prefer, I prefer the loopback.
*-Original Message-
*From: richard dumoulin [mailto:[EMAIL PROTECTED]]
I have 3 sites that I need to connect together. Telco has setup a port and
a single PVC for each site. Basically you have the following diagram
Site A
/\
/ \
Site B Site C
It's basically a triangle with
Comments inline:
*-Original Message-
*From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]]
*Sent: Tuesday, July 16, 2002 1:32 PM
*To: [EMAIL PROTECTED]
*Subject: Re: ip unnumbered [7:48894]
*
*
*Chuck wrote:
*
* recall that the link between you and whomever is a two host
* network.
*
You could put the network statement for the loopbacks into the OSPF
configuration and use the passive interface command to designate them as
passive. This satisfies both requirements, since the interface is passive
you would never be able to establish an adjacency or run OSPF on the link,
and
implementation in large/service provider networks? Are there any books that
go into detail on these particular topics, take you step by step from a
customer through to the core?
-Original Message-
From: Peter van Oene
To: Lupi, Guy; [EMAIL PROTECTED]
Sent: 7/11/2002 8:18 AM
Subject: RE: Route
I will definitely look into some of the resources you mentioned. Again,
thanks to all who responded.
~-Original Message-
~From: Peter van Oene [mailto:[EMAIL PROTECTED]]
~Sent: Thursday, July 11, 2002 10:16 AM
~To: Lupi, Guy; [EMAIL PROTECTED]
~Subject: RE: Route Reflection
: Phillip Heller [mailto:[EMAIL PROTECTED]]
~Sent: Wednesday, July 10, 2002 10:25 PM
~To: [EMAIL PROTECTED]
~Subject: Re: Route Reflection with Multiple POPs [7:48509]
~
~
~On Thu, Jul 11, 2002 at 01:28:08AM +, Lupi, Guy wrote:
~ I had a feeling that would happen, I will try to clarify. I
90 minutes is a really long time, is it like that consistently? Are there
any other performance issues on that segment? How many routes does the 2650
carry? It looks like the 2620 is doing inbound AS path filtering, how many
routes does the 2650 send it that it has to process through that
Clients o- -o Clients
o- \ / -o
o o
POP 3/ \ POP 4
Clients o- -o Clients
o- -o
Guy H. Lupi
CCIE No. 9275
Message Posted at:
http
PROTECTED]
*Subject: Re: Route Reflection with Multiple POPs [7:48509]
*
*
*On Wed, Jul 10, 2002 at 04:42:25PM +, Lupi, Guy wrote:
* Let me preface this by saying that I am trying to learn more
*about large
* scale BGP design and operation. This question is on route
*reflectors when
* you have
, July 10, 2002 4:10 PM
*To: [EMAIL PROTECTED]
*Subject: Re: Route Reflection with Multiple POPs [7:48509]
*
*
*At 7:17 PM + 7/10/02, Phillip Heller wrote:
*On Wed, Jul 10, 2002 at 04:42:25PM +, Lupi, Guy wrote:
* Let me preface this by saying that I am trying to learn
*more about large
are reflecting all routes, you
*shouldn't run
*into issues here.
*
*I
*
*
*
*At 04:42 PM 7/10/2002 +, Lupi, Guy wrote:
*Let me preface this by saying that I am trying to learn more
*about large
*scale BGP design and operation. This question is on route
*reflectors when
*you have multiple POPs
Subject: Re: Route Reflection with Multiple POPs [7:48509]
On Wed, Jul 10, 2002 at 10:27:08PM +, Lupi, Guy wrote:
I know that you can run confederations and reflectors, and seperate
levels
of reflection, which Cisco refers to as nested reflection. Now my
question is, how would you set up
Hi Guys,
Just curious how is current Japan market for we guys,..CCNPs..CCIE
qualified or watever..
I am seriously thinking about moving to japan and need some comments on the
current situation and salaray structure there.
Take Care,
TOM
I was wondering if anyone would be willing to share their experiences, good
or bad, with Cable and Wireless or Genuity. I am thinking of getting some
upstream connectivity from them. Thanks in advance.
Guy H. Lupi
CCIE No. 9275
Message Posted at:
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quality service. Thank you.
*-Original Message-
*From: dre [mailto:[EMAIL PROTECTED]]
*Sent: Monday, July 08, 2002 4:42 PM
*To: [EMAIL PROTECTED]
*Subject: Re: Opinions on Providers [7:48339]
*
*
*Lupi, Guy wrote in message
*[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
* I was w
on
that, advantages/disadvantages?
*-Original Message-
*From: dre [mailto:[EMAIL PROTECTED]]
*Sent: Monday, July 08, 2002 5:49 PM
*To: [EMAIL PROTECTED]
*Subject: Re: Opinions on Providers [7:48339]
*
*
*Lupi, Guy wrote in message
*[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
* You bring
I was wondering if anyone could recommend a reseller that they have had good
dealings with in the New York area. Finding it hard to find someone who
deals with the ONS product line, Cisco's website is useless.
Guy H. Lupi
CCIE No. 9275
Message Posted at:
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Hunt is right, on the web they do say that peer groups are not compatible
with route reflectors due to route withdrawal problems, I don't know about
the book. Here is a link to the website that states it about 3/4 of the way
down the page, I also have no problem running redundant reflectors
is not
burdened with a poll every 3 to 5 minutes on every
interface. I have heard that SNMP is very processor intensive. Anyone have
a comment on this, or could tell me what they do on their network in this
situation? If using traps, how reliable do you find them? Thanks.
Guy H. Lupi
Message
interface. I have heard that SNMP is very processor intensive. Anyone have
a comment on this, or could tell me what they do on their network in this
situation? If using traps, how reliable do you find them? Thanks.
Guy H. Lupi
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I know when I got mine they made me burn the saint. ;)
*-Original Message-
*From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
*Sent: Thursday, June 06, 2002 11:47 AM
*To: [EMAIL PROTECTED]
*Subject: Re: Anniversary [7:45937]
*
*
*At 10:33 AM -0400 6/6/02, Kenneth R. Snell wrote:
Check your computers arp cache, entries that are not for local IP addresses
should point to the mac address of the device that is responding to the arp
requests for destinations on the Internet. Then, with the mac address, you
can compare that to all the arp entries for that mac address and find
Tera Term is a good, free program. If you don't mind spending a little
money, SecureCRT is great.
-Original Message-
From: . .
To: [EMAIL PROTECTED]
Sent: 5/29/2002 5:54 PM
Subject: telnet terminal [7:45397]
what is a popular (and free) telnet terminal for all of you using?
GUys,
I am confused abt configuring Mobile ARPIf I want to make my users
mobile from Vlan 10 to VLan20. Where I shud conigure mobile ARP???on Vlan
10 or on Vlan 20??
2nd. do we have to define any network uner ROUTER MOBILE?? or just put it.
int e0(vlan20)
ip mobile arp
ip proxy arp
Guys,
I am confused out Playing with Different kind of timers in ROuting and
switching.
Moslty, if we change timers in routing protocols like RIP /OSPF update or
hello interval , we must have to change it on both sides of link
DOes it mean that when ever we have to change ANY timer on one
The 2500 routers don't support full duplex operation. As far as your Sun
box, box A appears to be following classful IP rules, automatically assuming
that since your first octet is a 61 that your address space is a class A,
and therefore your netmask should be 255.0.0.0. I don't know enough
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