router respond to network address [7:9793]

2001-06-25 Thread Kuldip Singh

Can someone explain in following diagram that why
HostA can ping 10.2.1.255 or 20.1.1.255? HostA has a
default gw point to the router. From debug ip packet
the router is responding to the pings. Is this a
special feature of cisco router? Is there a way that
it can be turned off or on?

HostA(20.1.1.2)(20.1.1.1)Router(10.1.1.1)

Thanks,
Singh.

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Bridging in Token ring environment [7:2804]

2001-05-01 Thread Kuldip Singh

Hi All,

In following Token ring environment if hostA sends an
explorer packet to find address and route information
of HostB then how many explorer packets are received
at HostB? What I read so far from the books the answer
is 6. Correct me if I am wrong. Also does it matter
what kind of bridging protocol in use such SRB, RSRB,
DLSw etc for NetBIOS or SNA traffic.


 /-Bridge1--Bridge2\
/\  /   \
HostARing1\/Ring2--HostB
   |   \  /  |
   |\/   |  
   |/\   |
   |   /  \  | 
   |  /\ |
   |Bridge3---Bridge4|

Thanks,




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retransmission of packets in WAN [7:2525]

2001-04-29 Thread Kuldip Singh

Hi,

Can someone help me find out who (router or host) will
retransmit the packets if they were lost in the cloud
while using:
a. X.25
b. HDLC
c. SDLC
d. Frame-relay
e. DLSw+
f. ATM
g. T1, E1
to connect from one router to another.

HostRoutercloudRouterHost

Thanks

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RE: Jobs

2000-09-19 Thread Kuldip Singh
Title: RE: Jobs





Move to silicon valleyjust kidding..
Have you posted your resume on following?
monster.com
dice.com
jobs.com
hotjobs.com
etc


-Original Message-
From: Stephane Wantou Siantou [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, September 19, 2000 11:11 AM
To: [EMAIL PROTECTED]
Subject: Jobs




 Ho Everyone,
 I am about to become CCNP (by the end of the month). I live in
the Washington, D.C. area. I don't have any job opportunity. Nor do I
get people calling me for interviews. I am very worried because I spent a
lot of my time studying for this and I wouldn't want it to go down the
drain. Can anybody help? I would do anything including Part-time jobs or
internships to gain experience. Please give me tips. I am desperate.
 Stephane 


P.S. I also have a B.S. in EE and I'll soon have an M.S. in EE


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RE: Decreasing # of CCIE's Worlwide

2000-09-07 Thread Kuldip Singh
Title: RE: Decreasing # of CCIE's Worlwide





Or got fired by installing cisco products and have no faith in cisco any more...-:)


Actually getting once is good enough because one can't stay on top of every technical aspect of networking for too long. You have to branch off doing different things and keep your expertise in few areas. Plus cisco is very careful in decertifying their CCIEs and keep their numbers low.

-Original Message-
From: Leonard Ong [mailto:[EMAIL PROTECTED]]
Sent: Thursday, September 07, 2000 2:26 PM
To: Healis, Jim
Cc: [EMAIL PROTECTED]
Subject: RE: Decreasing # of CCIE's Worlwide



At 03:59 08/09/2000, Healis, Jim wrote:
This could be due to people not passing re-certification exams, failing to
schedule the re-cert exam in time, death, or even worse Breaking Cisco's
NDA!!


Kidnapped by left-behind in networking technology alien race. ( They need 
CCIEs )
Involved in one of many unresolved X-Files Case
got electrified by while installing cisco routers
Overloaded by IOS and went into mental hospital.




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RE: How to pronounce?l

2000-08-23 Thread Kuldip Singh
Title: RE: How to pronounce?l





Its not a big deal how you pronounce as long as the listener get your point. Instead of going too far in pronunciations...just tell him/her the whole form such as:

TACACS: Terminal Access Controller Access Control System.
RADIUS: Remote Authentication Dial-in User Services.
PIX: Private Inetrnet Exchange.


-Singh.
-Original Message-
From: Sammi [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 23, 2000 3:21 AM
To: [EMAIL PROTECTED]
Subject: Re: How to pronounce?l



Sorry to jump in your thread, but great question, there a number of
things I don't know how to pronounce. Rather sheepish when you're in
an interview and say you've been studying x and you pronounce it
wrong.


How about PIX firewall?
Is pronounced PIX or P-I-X? (if you get my meaning).


On 22 Aug 2000 22:52:53 -0400, [EMAIL PROTECTED] (Victor Jia)
wrote:


Can anyone tell how to pronounce the words TACACS, RADIUS? Anywhere can I
find the pronounciation of all those abbreviations?

Thanks.


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RE: Simple Net Traffic Generator????

2000-08-22 Thread Kuldip Singh
Title: RE: Simple Net Traffic Generator





There are several applications available for generating controlled traffic some are implemented on proprietary hardware and some are running on windows or linux platform:

Hardware: SmartBits, Ixia.
Software: Chariot, Shomiti's surveyor, or a sniffer (such as NetXray, Observer etc..).


-Singh.
-Original Message-
From: Bob Johnson [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, August 22, 2000 6:53 AM
To: '[EMAIL PROTECTED]'
Subject: Simple Net Traffic Generator




I'm looking for a simple application that will stream TCP or UDP traffic at
a controlled rate from one IP address to another.Ideally it would have the
following features:


1) Allow changing the bandwidth on the fly ( watch how the routers handle
traffic changes)
2) Have rates from say 9.6kbs to 1.5 meg or more (simulate feeds from async
to T-1 or even ethernet )
2) Have some canned traffic but also let you pick your own files (see how
various files act with compression)
3) Show traffic drops(so you know when a link is having trouble)


This would be great for router labs...
I've not yet seen such an application anywhere. I'm familar with Cloud and
other apps that simulate a network. I have the network, I just want to
simulate different types of traffic...


Thanks


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RE: Adding another subnet for internet connection

2000-08-17 Thread Kuldip Singh
Title: RE: Adding another subnet for internet connection





If its a good decent router that can take the load of 2 subnets then assign IP address out of the second subnet to the same E0 as secondary IP address.

-Singh.


-Original Message-
From: ken airs [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 17, 2000 8:59 PM
To: [EMAIL PROTECTED]
Subject: Adding another subnet for internet connection



Hi ,
My customer is having the below configuration.


Subnet 202.222.222.x/24 is connected to E0 for internet connection. The 
subnet is connect to the E0 of the router.
Now , they have requested for additional ip address from their ISP but is of 
a different subnet eg. 202.222.211.x/24 .
If the router has only 1 ethernet port , how will the user add in the new 
range of ip address ?


Thanks
kenairs

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RE: 802.1Q support on a PCI Ethernet Card?

2000-08-17 Thread Kuldip Singh
Title: RE: 802.1Q support on a PCI Ethernet Card?





I mean to say the Intel Pro/100+ Series of Cards.
I think they might support ether channel as well too but so far I only had time to use it for trunking on one port only.

-Singh.
-Original Message-
From: Xanathar [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 17, 2000 12:41 PM
To: [EMAIL PROTECTED]; Cisco GroupStudy
Subject: RE: 802.1Q support on a PCI Ethernet Card?



You mean like the Compaq NC 3131 Dual port adapter?
Or the Intel Pro/100+ Series of Cards?


http://www.intel.com/network/products/pro100srvr.htm


Intel single ports can be found for around 40$
and the Dual port for both series for around 120$


It is a feature of the 8225x series of Intel chipsets more then anything.
FreeBSD also has support with the intel chipsets for .1q


Both of the above are sitting on my desk and do support .1q
I belive they also do fast etherchannel.


Now i just need a switch that supports it. Stupid 3com 3000 has vlans, but
i guess they are 3com proprietary, cant get them to link to anything else
but 3com


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
[EMAIL PROTECTED]
Sent: Thursday, August 17, 2000 3:09 PM
To: [EMAIL PROTECTED]
Subject: 802.1Q support on a PCI Ethernet Card?



Wouldn't it be nice if someone came out with a NIC card for a PC that would
support 802.1Q and allow you to put multiple IP addresses on one computer.
This would be so useful for testing, since one PC connected via trunk to a
switch could simulate multiple machines... you could do pings between one
ethernet subinterface to another through a test network.


If something like this (or close) is available, please let me know... I'd
buy a dozen.


Arto



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RE: 802.1Q support on a PCI Ethernet Card?

2000-08-17 Thread Kuldip Singh
Title: RE: 802.1Q support on a PCI Ethernet Card?





Intel pro 100+ management ethernet NIC supports vlans with 802.1q tagging which can be used for assigning multiple IP address to single PC but don't install 3com card in the same PC because it causes problems. It runs on windows NT and I am using it for testing. I think you canpick Linux drivers on the net too.

-Kuldip
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 17, 2000 12:09 PM
To: [EMAIL PROTECTED]
Subject: 802.1Q support on a PCI Ethernet Card?



Wouldn't it be nice if someone came out with a NIC card for a PC that would
support 802.1Q and allow you to put multiple IP addresses on one computer.
This would be so useful for testing, since one PC connected via trunk to a
switch could simulate multiple machines... you could do pings between one
ethernet subinterface to another through a test network.


If something like this (or close) is available, please let me know... I'd
buy a dozen.


Arto



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RE: Is a switch secure? (managed/unmanaged)

2000-08-15 Thread Kuldip Singh
Title: RE: Is a switch secure? (managed/unmanaged)





Hi Dave,


Even though you can do it with a switch but its not secure enough to satisfy highly profiled customers because packets can be sniffed across vlan ports using mirroring port and there is no packet inspection and if you need vpn in the future you have to look from all over again.

So here is my solution for this even though I am not trying to push for it but product at netscreen (www.netscreen.com) called NS1000 is directly targeted for this kind of multi-tenant networking sites. It has integrated firewall, VPN and traffic shaping in gigabit throughput range. You can use virtual systems and vlans inside one NS1000 and if in the future remote sites want to come into their appropriate local site just turn on the vpn features for appropriate virtual system. Each tenant will have total security through the firewall. If one tenant want to talk to other tenant they have to go through NS1000 by following their appropriate policy. It support, vlan tagging, NAT and other firewall options for sure.

Here is physical topology 
   InternetNS1000--SwitchTenant-1, Tenant-2,...Tenant-100. 
Product has been released 6 months ago and is under deployment in major ASPs and ISPs such as cablewireless, loudcloud, yipes are few.

More info at http://www2.netscreen.com/pub/


-Singh
-Original Message-
From: Dave Kemper [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, August 15, 2000 11:31 AM
To: [EMAIL PROTECTED]
Subject: Is a switch secure? (managed/unmanaged)



Hello Group Study,
A quick question for you.
Scenario:
I have a client with about 8 leased offices in his complex, total 16 drops
plus room for future expansion. He would like to provide shared high speed
Internet access to each office but for security reasons must maintain
confidentiality between each office. Additionally some offices would like to
share files between the office renter and their individual secretary.


Internet -- Firewall - switch-- (Office #1 Secretary PC)  (Office #1
Business owner).


The network may have to be reconfigured as tenants moving in and out have
different network requirements.


My solution:
My first thought would be to get a managed 24 port switch that where each
port can be configured for separate VLANs. Configure all ports to have
access to the port for Internet access and set ports between each secretary
and there office manager to have access to each other.


1) Can this be done this way?
2) Is this the best way to do this?
3) What other solutions would resolve the problem?
4) Can you recommend brands and models of hardware for this solution?


If anyone has any good resources on the Net or from Vendors that explains
this well, I would appreciate knowing about them. Please post replies to the
group for all to learn from and if it is convenient copy to my email address
also.


Thank you in advance and have fun!


Dave Kemper, MCSE, CCNA
[EMAIL PROTECTED]
AMK Computers



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RE: OSPF question - discontiguous areas

2000-08-15 Thread Kuldip Singh
Title: RE: OSPF question - discontiguous areas





Is this can be fixed changing one of the Area_2 to another area such as Area_3?


-Singh
-Original Message-
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Monday, August 14, 2000 9:52 PM
To: Cisco Mail List
Subject: OSPF question - discontiguous areas



This question came up on another list. I thought I would repeat it here, and
see what kind of discussion it engenders.


Question: how does one repair a discontiguous OSPF area?


e.g. Area_2-Area_0---Area_2


How would you go about it?


Chuck
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