Locations of visitors to this page Perfect dream will never let you sleep in peace...untill you make it real: 2010

Friday, December 31, 2010

Design

The below network includes:
1> Ospf (all routers)
2> Virtual links(R4,R5)
3> Stubby area(R3)
3> Totally stubby area(R3)
4> RIP redistribution(R2)

R2 is ABR and ASBR

Thursday, December 30, 2010

next::::

will try my hand on 
1>virtual links
2> redistribution
3> lab scenarios on the internet.(will post all my scenarios i tested along with original page links). 

Again OSPF over NBMA

good one by Jeremy
This is again the same topology which I already practiced once by following Jeremy. Now after CCNA i wanted to try it by myself. Below are some problems faced and what I learned:
\










1> Always use 3600 router for config. Reason: Very stable with GNS3. No Dynamips crashing anymore.
2> Configure all the interfaces first and then configure the ospf. You may face routes not getting populated.
    USE : [clear ip ospf process] to restart the ospf process on all routers
3> Interfaces were going up and down frequently after initializing OSPF. User
no frame-relay inverse-arp
to resolve the issue while configuring FR. this helps in solving my issue.

Took 2 nights, to do this. But at last did it.

Wednesday, December 29, 2010

secure crt in gns3




C:\progra~1\vandyk~1\SecureCRT\SecureCRT.EXE /script c:\progra~1\gns3\securecrt.vbs /arg %d /T /telnet %h %p 

use the path of your securecrt. do not change anything else

Tuesday, December 28, 2010

Configure router as a frame relay switch

#line console 0
#logging synchronous
#no exec-timeout  or # exec-timeout 0 0
#exit
#frame-relay switching
#int s1/0
#en fr
#clock rate 64000
#frame-relay lmi-type cisco
#frame-relay intf-type dce

-----below is most important comand-----

#frame-realy route 100 interface s0/1 300

source is 100 and for the destination dlci 300 send it though int s0/1

same config for all other interface......First I used three FR switch for a single scenario
Now I can use single FR sw fro single scenario

Thursday, December 16, 2010

OSPF packets

 You can download the pcap file from the below link

http://rapidshare.com/files/437521313/R1_to_SW1.cap

In this packet dump you will mainly find
1> LSA type 3  --->ABR summary route
2> LSA type 4  ----> ASBR summary route

Router id 1.1.1.1 is the ASBR (i redistributed the static routes just to understand how packets look like) and Router ID 2.2.2.2 is the ABR.

OSPF States/ OSPF handshake / OSPF Neighbor states

Here are the logs in bebug mode. I will capture the live packets...but the time stamp will be different.


Router#debug ip ospf events
OSPF events debugging is on
----------------------Here I have shut the interface on the other router-------------------------
--------------Already we had neighbours formed, but I wanted to check the packets----------------
Router#
*Mar  1 00:54:03.215: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 172.30.0.1-->first hello
*Mar  1 00:54:13.215: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 172.30.0.1-->Second hello
*Mar  1 00:54:23.215: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 172.30.0.1-->third hello
*Mar  1 00:54:32.859: OSPF: 2.2.2.2 address 172.30.0.2 on FastEthernet0/0 is dead

*Mar  1 00:54:32.859: %OSPF-5-ADJCHG: Process 10, Nbr 2.2.2.2 on FastEthernet0/0 from FULL to DOWN, Neighbor Down:

Dead timer expired---->hahaha 4*hello--->neighbor down

*Mar  1 00:54:32.859: OSPF: Neighbor change Event on interface FastEthernet0/0
*Mar  1 00:54:32.863: OSPF: DR/BDR election on FastEthernet0/0
*Mar  1 00:54:32.863: OSPF: Elect BDR 0.0.0.0
*Mar  1 00:54:32.863: OSPF: Elect DR 1.1.1.1   ------------------>Router ID of the router where Debug is on
*Mar  1 00:54:32.863:        DR: 1.1.1.1 (Id)   BDR: none
------------------------------------->single router DR set---------------------------------------

*Mar  1 00:54:33.215: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 172.30.0.1
*Mar  1 00:54:43.215: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 172.30.0.1
*Mar  1 00:54:43.359: OSPF: service_maxage: Trying to delete MAXAGE LSA
*Mar  1 00:54:53.215: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 172.30.0.1
*Mar  1 00:55:03.215: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 172.30.0.1
*Mar  1 00:55:13.215: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 172.30.0.1
----------------sending multicasts ----searching for buddies---------------------------------------
--------------------now I have enabled the interface on the other router--------------------------

*Mar  1 00:55:16.071: OSPF: Rcv hello from 2.2.2.2 area 0 from FastEthernet0/0 172.30.0.2
*Mar  1 00:55:16.071: OSPF: Send immediate hello to nbr 2.2.2.2, src address 172.30.0.2, on FastEthernet0/0
*Mar  1 00:55:16.075: OSPF: Send hello to 172.30.0.2 area 0 on FastEthernet0/0 from 172.30.0.1
*Mar  1 00:55:16.075: OSPF: End of hello processing
*Mar  1 00:55:20.463: OSPF: Rcv DBD from 2.2.2.2 on FastEthernet0/0 seq 0x1551 opt 0x52 flag 0x7 len 32  mtu 1500

state INIT

--------------------------------->1.1.1.1 goes to INIT state<-----------------------------------------------

*Mar  1 00:55:20.463: OSPF: 2 Way Communication to 2.2.2.2 on FastEthernet0/0, state 2WAY

--------------------------------->done with 2 way state<-------------------------------------------------

*Mar  1 00:55:20.467: OSPF: Neighbor change Event on interface FastEthernet0/0
*Mar  1 00:55:20.467: OSPF: DR/BDR election on FastEthernet0/0
*Mar  1 00:55:20.467: OSPF: Elect BDR 2.2.2.2
*Mar  1 00:55:20.467: OSPF: Elect DR 1.1.1.1
*Mar  1 00:55:20.467:        DR: 1.1.1.1 (Id)   BDR: 2.2.2.2 (Id)

---------------------------->elected DR and BDR<-----------------------------------------------

*Mar  1 00:55:20.471: OSPF: Send DBD to 2.2.2.2 on FastEthernet0/0 seq 0x15B3 opt 0x52 flag 0x7 len 32
*Mar  1 00:55:20.471: OSPF: NBR Negotiation Done. We are the SLAVE

------------------------>For Master slave relation <----------------------------------
--->Priority of the router decides Master or slave, router ID breaks the tie so 2.2.2.2 is having ---------
------------------------------higher ID so it becomes master--------------------------------------
---------------------------------slave always sends first DBR and then master---------------------------------------

*Mar  1 00:55:20.471: OSPF: Send DBD to 2.2.2.2 on FastEthernet0/0 seq 0x1551 opt 0x52 flag 0x2 len 92
*Mar  1 00:55:20.655: OSPF: Rcv DBD from 2.2.2.2 on FastEthernet0/0 seq 0x1552 opt 0x52 flag 0x3 len 112  mtu 1500

state EXCHANGE
*Mar  1 00:55:20.655: OSPF: Send DBD to 2.2.2.2 on FastEthernet0/0 seq 0x1552 opt 0x52 flag 0x0 len 32
*Mar  1 00:55:20.747: OSPF: Rcv DBD from 2.2.2.2 on FastEthernet0/0 seq 0x1553 opt 0x52 flag 0x1 len 32  mtu 1500

state EXCHANGE

----------------------------> EX-start state<----------------------------------------------------
---------------------------->we will do packet analysis here------------------------------------
*Mar  1 00:55:20.747: OSPF: Exchange Done with 2.2.2.2 on FastEthernet0/0
*Mar  1 00:55:20.751: OSPF: Send LS REQ to 2.2.2.2 length 24 LSA count 2
*Mar  1 00:55:20.751: OSPF: Send DBD to 2.2.2.2 on FastEthernet0/0 seq 0x1553 opt 0x52 flag 0x0 len 32
*Mar  1 00:55:20.755: OSPF: Rcv LS REQ from 2.2.2.2 on FastEthernet0/0 length 36 LSA count 1
*Mar  1 00:55:20.755: OSPF: Send UPD to 172.30.0.2 on FastEthernet0/0 length 40 LSA count 1
*Mar  1 00:55:20.859: OSPF: Rcv LS UPD from 2.2.2.2 on FastEthernet0/0 length 96 LSA count 2

------------------------------Loading state-----------------------------------------------

*Mar  1 00:55:20.863: OSPF: Synchronized with 2.2.2.2 on FastEthernet0/0, state FULL
*Mar  1 00:55:20.863: %OSPF-5-ADJCHG: Process 10, Nbr 2.2.2.2 on FastEthernet0/0 from LOADING to FULL, Loading Done

----------------------------------------------Full State----------------------------------------------------

Redistribution done

Now next job is to understand each packet in the OSPF.

All LSA types and how exactly do they look and how exactly can we differentiate between is most amazing.

Till now, it was slow and now I need to plan my things and need to work on my plans daily. I have decided to give my troubleshooting paper first.

Reason:
once i can do troubleshooting then I will be able to give my routing and the switching paper each 15 day gap after troubleshooting.


So heavy pile of concepts and lil time. Need to work fast and efficient while keeping the perfect balance between work, family and challenge ;-)

Sunday, December 5, 2010

Route Redistribution

Now, I am doing the route redistribution.

Once I done with that I will start the analysing the varoious LSA packets of OSPF.

Packets have always amazed me. Laura has helped me to gain confidence. Now I want to get deeper in to packet analysis. Every time I read about a protocol I want to get to know the packets.

I know its too time consuming but we need to understand each bit of it to remember it forever.

You have to two things to know about things
1>Learning
2>Doing

And I believe Doing > Learning.

Saturday, November 27, 2010

back from malaysia

I am back from Malaysian trip. Now I need to again concentrate on my second hurdle. 

It would require me to concentrate on the logics and not on configuration part. 

I need to restart again everything. Since I know the basics, i need to practice with some major deployments.

Tuesday, November 16, 2010

Passed CCNA : 987 Score

First Hurdle cleared!


I know there is nothing to boast about but if you are trying to avoid dumps then its really a challenge.


The first challenge is finished. Now CCNP the second challenge. Understanding the networks in itself is a challenge and if you know what perfect dream is....then you will never sleep.

Thursday, November 11, 2010

had to reschedule the exam

It was all closed...so I had to postpone the exam to sat i.e. tomorrow 13th....My Malaysian Trip is scheduled next week and next month again to KSA.


Need to push myself hard some more nights...reading  ccna book all over again.

Saturday, November 6, 2010

Good vlan concept question from CCNA track

this is really a good question.
what is traffic path for a ping packet from PC1(vlan10) to Sever0(vlan 20)?

The answer was instant but wanted to try
here is the answer
PC1-->R1-->R2--->Server0

this really made my concepts true for access mode and trunk mode. we grow more in ccnp track.

Thursday, November 4, 2010

trick to keep CPU utilization low and gns not crashing

Trick to keep CPU utilization low in GNS3

don't let your routers go back to idle state

1> get an idle PC value

2> to make sure..it does not use CPU utilization suddenly in middle of configuration.

>en
# conf t
# line console 0
# no exec-timeout

This will resolve the sudden spike of the CPU. Use already extracted IOS to boot it in GNS3.

Also please do not use 2600 series router images in GNS3, my GNS3 crashed frequent. Tried to google but not much help.


Full on CCNA

I am trying to solve all the queries which are given at end of each chapter. I am also preparing some online dumps and old question papers. Still week in

1> ACL/NAT/NAT POOL
2> Enabling secret passwords

Tuesday, November 2, 2010

Preparation for CCNA

I am ready to give my CCNA on 8th of this month....Malaysia is set on 17th Nov and I need to give CCNSE training to our partners.

Thursday, October 28, 2010

Nxt Trp Scheduled

Next trip is scheduled next month to Malaysia. Need to give my CCNA before going. Will start preparing after 31st.

Wednesday, October 27, 2010




















At last the ospf over NBMA is done...same as Jeremy's....Now I can try my own style of OSPF networks.


I am not using 2600 router any more. GNS is having some issue with this router IOS

I am now using 3725 IOS. GNS does not crash any more. it works fine even after working 3 hours continuously.

Issue resolved...But my GNS3 is frequently crashing

Oh Gosh! I had to simulate it 5 times to resolve the issue. But one thing is clear you have to be more strong at troubleshooting than just configuration.

Disabling inverse arp on both routers resolved the issue. I need to some time to test why it was failing with inverse arp.

Tuesday, October 26, 2010

I am still waiting for someone to answer my query

Still waiting for someone to answer my query on google blog

ospf over nbma

I had to open a ticket in cisco community to solve this issue

i tried to use cisco packet tracer but some commands were not working properly. I tried to use multiple FR switches in gns3 but they started to act wierdly.

I decided to use router as a FR switch but one interface would always go up and down.

Ospf is quite amazing...and needs good amount to time while you are working with multiple areas, virtual links, stubby and NSSA, TS

The queries on cisco were quite amazing and can be used to learn a lot.

Tuesday, October 12, 2010

back from trip

I am back from KSA trip...now again I can get back to you my studies....i will revise for today

Tuesday, September 21, 2010

eigrp over nbma network(hub and spoke)



R1
=====

!
interface Loopback1
 ip address 172.16.1.1 255.255.255.0
!
interface Serial0/0
 ip address 192.168.1.1 255.255.255.0
 encapsulation frame-relay
 no ip split-horizon eigrp 1
 frame-relay map ip 192.168.1.2 102 broadcast
 frame-relay map ip 192.168.1.3 103 broadcast
!
router eigrp 1
 network 172.16.1.0 0.0.0.255
 network 192.168.1.0
 no auto-summary
!
line con 0
 exec-timeout 0 0
line aux 0
line vty 0 4
!
!
end



r2
==============

!
interface Loopback1
 ip address 172.16.2.1 255.255.255.0
!
interface Serial0/0
 ip address 192.168.1.2 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 192.168.1.1 201 broadcast
 frame-relay map ip 192.168.1.3 201 broadcast
!
router eigrp 1
 network 172.16.0.0
 network 192.168.1.0
 no auto-summary
!
line con 0
 exec-timeout 0 0
line aux 0
line vty 0 4
!
!
end



r3
=========
interface Loopback1
 ip address 172.16.3.1 255.255.255.0
!
interface Serial0/0
 ip address 192.168.1.3 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 192.168.1.1 301 broadcast
 frame-relay map ip 192.168.1.2 301 broadcast
!
router eigrp 1
 network 172.16.0.0
 network 192.168.1.0
 no auto-summary
!
line con 0
 exec-timeout 0 0
line aux 0
line vty 0 4
!
!
end

no ip split-horizon

I was not able to set up eigrp in hub and spoke scenario....

no ip split-horizon eigrp 1

is not working...so i need to work on gns3

Trip extended

seems trip will be extended....now its been very long I have stepped out of cisco dream....well daymares started to appear while work.

Lets start it again with a lil eigrp and ospf

i have save an eigrp lab with IP address already store. All I need to do is enable FR and eigrp

I will paste the config once I am done with the lab

Sunday, September 19, 2010

Immersed

Since Friday...I have either studied lil or nothing. For todays I spend my time with my family. I will not be here for 2 weeks. My next trip is scheduled on 23rd for KSA. I am trying to complete my KRA at work. I will have redirect the funds for my examination.  :-)

Wednesday, September 15, 2010

Day 12: OSPF

Start of OSPF

I tried 4 area network...dropped to 3...now i can populate routes....ospf is vast...good...i am lil worried about my progress....sat and sun are near....but I need to complete my KRA at job. May be I will work late on friday completing all docs and i need to prepare some presentations...just done with  Nigeria trip...now KSA is scheduled by end of this month.

once the trip is over I will have again concentrate more on studies...i need to complete my CCNP routing as soon as possible now.

Tuesday, September 14, 2010

Trick to keep CPU utilization low in GNS3

don't let your routers go back to idle state

1> get an idle PC value

2> to make sure..it does not use CPU utilization suddenly in middle of configuration.

>en
# conf t
# line console 0
# no exec-timeout

day 11: Complete

Its been eleven days.....very less time and more to learn...

Network will be summarized when there is a major change in the subnet....in the earlier diagram...mojority if the network was in 10.0.0.0/8 subnet and hence it was not being summarized......but there is a change in the subnet of the 172 to 10 and hence routes have been summarized to classful subnet


Amazing......came to know after reading white paper from Cisco and Cisco blog

http://www.cisco.com

Monday, September 13, 2010

oh god back to square one


R0
====
interface Serial0/3/0
ip address 10.1.24.1 255.255.255.252
clock rate 64000
!
interface Serial0/3/1
ip address 10.1.34.1 255.255.255.252
clock rate 64000
!
interface Vlan1
no ip address
shutdown
!
router eigrp 25
network 10.1.34.1 0.0.0.0
network 10.1.24.1 0.0.0.0
network 172.16.0.0
auto-summary

R1
=====
interface FastEthernet0/0
ip address 10.1.2.1 255.255.255.0
duplex auto
speed auto
!
interface Serial0/3/0
ip address 10.1.34.2 255.255.255.252
!
router eigrp 25
network 10.1.34.2 0.0.0.0
network 10.1.2.0 0.0.0.255
auto-summary

R2
======

interface FastEthernet0/0
ip address 10.1.2.2 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 10.1.25.2 255.255.255.0
duplex auto
speed auto
!
interface Serial0/3/0
ip address 10.1.24.2 255.255.255.252
!
router eigrp 25
network 10.1.24.2 0.0.0.0
network 10.1.2.0 0.0.0.255
auto-summary
!


Now thank you for your patience since you are reading this now after going through all my network diagram.

R2 Routes
========
     10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C       10.1.2.0/24 is directly connected, FastEthernet0/0
C       10.1.24.0/30 is directly connected, Serial0/3/0
C       10.1.25.0/24 is directly connected, FastEthernet0/1
D       10.1.34.0/30 [90/2172416] via 10.1.2.1, 00:24:47, FastEthernet0/0  <-------why this is not 10.0.0.0/8
D    172.16.0.0/16 [90/2297856] via 10.1.24.1, 00:21:11, Serial0/3/0

Again a major set back in understanding the network command....God! this is getting more complex. And I am really not able to understand this network command...lets search for better docs on this....need major article on this.



little knowledge is very dangerous

I understand the meaning of this proverb now. A single mistake done with lack of knowledge may get your whole network done.

I have to be more careful. In labs we are eligible to do anything...a best place to learn a car is in an open area. This makes sure that no one is hurt. If we try learning on a busy road...chances are more that you make a everyone to shout over you because you cause traffic Jams.

So thats the reason, I stopped at network command. I just joined two routers configured Eigrp with loop backs.
1> changed loops backs..checked routes
2> changed networks ...checked routes
3> changed loop backs with no auto-summary
4> with route summarization.

I took me very long time...almost 5 days after doing heavy testing...to understand the network command.

Sunday, September 12, 2010

The network command


This is a simple logic that was simple to understand but it took me almost 5 days to understand.
The network command in EIGRP is very brain chewing command for me.

I wanted to understand how it works exactly. Below is my explaination.

Above is my network diagram.

Below are the commands the I used on R1
# router eigrp 1
# network 192.168.1.0------>A
# network .............. ------->B

A> By default the eigrp auto summarizes to classful network. Hence it will always be 192.168.1.0/24 in the routing table.

B>

Case I> Check all WC carefully
network 10.0.0.0
or
network 10.10.0.0 0.0.255.255
or
network 10.10.1.1 0.0.0.0
or
network 10.10.0.0 0.0.3.255

will all give same result i.e. in the routing table of R0 you will always find 10.0.0.0/8
since it will automatically summarize to classful subnet

With no auto-summary you are disabling the auto summarization to classful subnets

Case II> This is most interesting

I have one more network in the R1 side 10.10.222.0/24 network
a> network 10.0.0.0 or network 10.10.0.0 0.0.255.255 will allow us to ping 10.10.1.1 from R1

b> if I use
#network 10.10.0.0 0.0.3.255
#no auto-summary

then this command will exclude the 10.10.222.0 subnet from my network command and pinging it will not be possible from R1.

============================================

Conclusion :
a> network command helps to determine what networks are eligible to be advertised
b> better always use no auto-summary
c> then sends advertisement on 224.0.0.10

Need expert comments on this

Decided to follow below method for my ccnp

it was getting difficult to understand the things and how they work with out doing labs. For doing labs CBT is best to understand basic underlying concepts. So i decided to go through following process

1> Go through CBT-understand basic concepts-do labs along Jeremy
3> Note down all the problems/queries you have faced.
2> Once done with all the videos come to CCNP official Guide...read every page.... every single line has meaning and it opens many unsolved.

lets check this way..if it doesnt work I have to find a new way for switching or read the ccnp routing again

I am positive this is going to work reason being...
1> with jeremy you will understand how things work basically and come out with a conclusion
2> with cisco guide you will co-relate your conclusion with how exactly the cisco things work.

Hope this works for me!

Let me know how your approach was

http://www.cisco.com
http://www.careercert.info/

Saturday, September 11, 2010

God! its not so easy

I was watching and hearing Jeremy talking about EIGRP. I thought that is all!

I got Cisco 642-902 official exam guide. Its far more than what I exactly thought it would be. After going through "Do you already know Quiz" I came to know there is much more to learn that what I actually thought. The questions simply made me realize that

buddy, what you know is a little and what you need to know is more.

:-)

its better to know it at early stages than wondering later. I think this is going to be tough Journey

Best of luck

lets get started again with EIGRP ;-)

https://learningnetwork.cisco.com/docs/DOC-6568

Network Command

Network command is haunting me now. I think I should give it some time to understand. I will get back in deep after a while. Lets go ahead with EIGRP over FrameRelay.

I like configuring frame relay. :-)

Thursday, September 9, 2010

tired

I am really tired today after the night shift. I need some rest.

Wednesday, September 8, 2010

multipoint frame-relay- Hub and Spoke with RIP

ah I took me some time to figure out how to configure multipoint frame-realy in hub and spoke network with RIP

hope this helps for you guys
                         <-------r2
r1---->FR cloud
                        <-------r3


r1 is my hub
===========================

!
interface FastEthernet0/0
 ip address 172.16.1.1 255.255.255.0
 duplex auto
 speed auto
!

interface Serial0/3/0
 ip address 192.168.1.1 255.255.255.0
 no ip split-horizon          ---->this command really killed me....this stops split horizon
 encapsulation frame-relay
 frame-relay map ip 192.168.1.2 102 broadcast
 frame-relay map ip 192.168.1.3 103 broadcast
 clock rate 64000
!

router rip
 network 172.16.0.0
 network 192.168.1.0
!
=================================================

r2 is my spoke
=====================================================

!
interface FastEthernet0/0
 ip address 172.17.1.1 255.255.255.0
 duplex auto
 speed auto
!

interface Serial0/3/0
 ip address 192.168.1.2 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 192.168.1.1 201 broadcast
 frame-relay map ip 192.168.1.2 201 broadcast
 clock rate 64000
!

router rip
 network 172.17.0.0
 network 192.168.1.0
!
========================================

r3 is my spoke
====================================

!
interface FastEthernet0/0
 ip address 172.18.1.1 255.255.255.0
 duplex auto
 speed auto
!

interface Serial0/3/0
 ip address 192.168.1.3 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 192.168.1.1 301 broadcast
 frame-relay map ip 192.168.1.2 301 broadcast
 clock rate 64000
!

router rip
 network 172.18.0.0
 network 192.168.1.0
!

eigrp auto-summarization

This is cool..it took few minutes to understand this concept

(f0/0 172.16.0.0/255.255.248.0)  R1<---->R2   (f0/0 172.18.0.0/255.255.248.0)

By default EIGRP auto summarizes.

# network 172.16.0.0 0.0.7.255

I thought it should advertise same to the other router as it auto summarizes...but what I saw is it auto summarizes to 172.16.0.0/16 in R2....hmmm

So By Default it auto summarizes to classfull subnet

If I choose no auto-summary then it will populate each network i.e. from 172.16.0.0 to172.16.7.0

But I wanted to summarize routes to 172.16.0.0/21

after lil research I found

# int f0/0
# ip summary-address eigrp 12 172.16.0.0 255.255.248.0

aha...now i can see summarized route

Its an amazing journey...each day a new concept...i like it

The network command

post has ben deleted as this was completely wrong

Tuesday, September 7, 2010

working with GNS3

working with GNS3

it was a great deal..optimizing the cpu utilization and making it to use minimum cpu
here is what I have done
1> got the gns3 from website and also Cisco image unpacker 0.1 binary for Windows from gns3 website itself
2> downloaded the cisco 2621 IOS from torrent-->by default it uses only 64 MB very less again
3> unzipped the cisco IOS with unpacker 0.1 ---this will ensure to utilize less CPU as it does have to waste cpu utilization in unzipping each time.
4> used idle PC value
5> Used BES software and reduced the cpu utilization further to 33%

now even after running 5 *2621 my cpu utilizaion is not more than 40%


Also i prefer using secure crt as it was fun working with tabs...while putty will open new console windows for every appliance.

C:\progra~1\vandyk~1\SecureCRT\SecureCRT.EXE /script c:\progra~1\gns3\securecrt.vbs /arg %d /T /telnet %h %p

Please change your path settings accordingly. However, the above is default.

Now In the mean time I got my EIGRP configured.

thanks to http://www.careercert.info/ where i have downloaded all study material to get started with ccnp

Sunday, September 5, 2010

lets do something proactive

in the mean time i practiced my ospf (single area) and multipoint and p2p FR again...just to make sure I am confident in configuring and understand them better

Saturday, September 4, 2010

speed up

nw my speed is back 2 normal ....now 100mb takes 6 mins to download......8 more videos to download

Found CCNP Material

http://www.4shared.com/dir/Qe_dUXbB/CBTn_ROUTE.html#

My download BW is very less today. I called up my ISP they gave me ticket number. ISP guy came in the evening checked that my download speed is only 24kbps but according to my plan it should be downloading at 172-176 Kbps.

I am done downloading 4 parts. In the mean while i searched for some e-books and some blogs to keep my spirit up.

In the evening we went out to have our dinner. Now since I am back.. started downloading again.

i am ready for ccna

by start of next month i will have enough resources to give my ccna
till then i will have to start  collecting my ccnp material and start studying for ccnp..lets do it now

day 2: are you ready for ccna?

Friday, September 3, 2010

day 1 : progress

in this scenario i have configured rip over frame relay

Perfect dream will never let you sleep in peace

Lets make the dream real of becoming a CCIE. I wish to complete my CCIE by Aug next year. Lets start it with CCNA. Each day I will try near my goal. Lets start it today.