Showing posts with label Helpful Blogs. Show all posts
Showing posts with label Helpful Blogs. Show all posts

Tuesday, November 22, 2011

Best CCNA Training In Market For Free - Till 31st December 2011







Yet again INE surprises their customer with Free Access to best CCNA Training in Industry till 31st December, 2011. Since the product is executed and compiled by Brian McGahan so you guys just don't worry at all about quality of material you gonna get. IMHO there will be no match. Here are the URLs :



HTH...
Deepak Arora
Evil CCIE

Monday, December 13, 2010

GNS Ver 7.3 Launched - With Many Fixes & New Features

Yesterday GNS3 Launched its new version of Graphic Network Simulator as Ver 0.7.3. The newer version has lots of new features and fixes including L3 switch as separate device which basically allows you to run L3 switch with 3700 Router IOS.






More details on new features can be found here.


And here is the quick URL to download the new version.

HTH...
Deepak Arora
CCIE - 0::0/0 Null0

IPv6 Introduction & Basic Theory

Today I am moving to next topic on my study chart which is IPv6. So In near future don't get surprised if you see many more posts talking about IPv6 and it's features.


But before that I would like to share this awesome IPv6 introduction document covering IPv6 basic theory and implementation. Document is little old so it might not be covering the latest and greatest information on IPv6 like removal of Site Local Addressing Space from RFC standard etc. But still a good read if you wan't to grasp information about future of IP and Networking.


www.ipv6-tf.com.pt/documentos/geral/cisco/ipv6_abc_Aug2002.pdf

So read through this document before I come up with more exiting posts on IPv6 in coming weeks. :-)

HTH...
Deepak Arora
CCIE - 0::0/0 Null0

Friday, December 10, 2010

Native VLAN Horror - Can you solve the puzzle ?

Around 2 years back there was section called "Resources" on NMC Website. Actually plenty of good documents were out there on different R&S blueprint topics. Some of them were my favorite one. They created some scenarios based on few simple things like "Native VLAN", "SPAN/RSPAN" etc which most of you might be thinking about...ehhh...that's easy stuff and I can do even in sleep :-)


But there is always major difference between "knowing about things" Vs "Knowing things inside out". Though it's quite a lot of hard work one needs to do to achieve "Perfection" but still it's doable.


Without saying anything further let me share on of those interesting scenarios to challenge your understandings :-)


Or what Scott Morris call is "abusing people technically and in exiting new ways" hehehe :-)


Here you go:



HTH...
Deepak Arora
CCIE - 0::0/0 Null0

Wednesday, December 8, 2010

Connecting Two OSPF Areas With Stub Area In Middle - Quick Solution & Verification

Here is quick solution and verification for my last post: BTW are you not in love with GRE tunnels still ? 
:-)


http://deepakarora1984.blogspot.com/2010/12/connecting-two-ospf-areas-with-stub.html


R1#sh ip ro | b ^G
Gateway of last resort is not set


     11.0.0.0/32 is subnetted, 1 subnets
C       11.11.11.11 is directly connected, Loopback0
     12.0.0.0/24 is subnetted, 1 subnets
C       12.12.12.0 is directly connected, FastEthernet0/0




R2#sh ip ro | b ^G
Gateway of last resort is 12.12.12.1 to network 0.0.0.0


     33.0.0.0/32 is subnetted, 1 subnets
O       33.33.33.33 [110/2] via 23.23.23.3, 00:01:19, FastEthernet1/0
     23.0.0.0/24 is subnetted, 1 subnets
C       23.23.23.0 is directly connected, FastEthernet1/0
     11.0.0.0/32 is subnetted, 1 subnets
O IA    11.11.11.11 [110/2] via 12.12.12.1, 00:01:19, FastEthernet0/0
     12.0.0.0/24 is subnetted, 1 subnets
C       12.12.12.0 is directly connected, FastEthernet0/0
O*IA 0.0.0.0/0 [110/2] via 12.12.12.1, 00:01:19, FastEthernet0/0




R3#sh ip ro | b ^G
Gateway of last resort is not set


     33.0.0.0/24 is subnetted, 1 subnets
C       33.33.33.0 is directly connected, Loopback0
     23.0.0.0/24 is subnetted, 1 subnets
C       23.23.23.0 is directly connected, FastEthernet0/0
====================================================


R1(config)#router ospf 1
R1(config-router)#area 1 virtual-link 255.255.255.2
% OSPF: Area 0.0.0.1 is a stub or nssa so virtual links are not allowed
R1(config-router)#


====================================================
R1(config)#int tu 1
R1(config-if)#ip add 112.112.112.1 255.255.255.0
R1(config-if)#tu so f0/0
R1(config-if)#tu dest 12.12.12.2 
R1(config-if)#exit


R2(config)#int tu 1
R2(config-if)#ip add 112.112.112.2 255.255.255.0
R2(config-if)#tu so f0/0
R2(config-if)#tu dest 12.12.12.1
R2(config-if)#exit

*Mar  1 00:19:34.695: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel1, changed state to up

====================================================
R1(config)#router ospf 1
R1(config-router)#net 112.112.112.1 0.0.0.0 a 0
R1(config-router)#exit

R2(config)#router ospf 1
R2(config-router)#net 112.112.112.2 0.0.0.0 a 0
R2(config-router)#exit

====================================================
R1#sh ip ro | b ^G
Gateway of last resort is not set

     33.0.0.0/32 is subnetted, 1 subnets
O IA    33.33.33.33 [110/11113] via 112.112.112.2, 00:01:35, Tunnel1
     23.0.0.0/24 is subnetted, 1 subnets
O IA    23.23.23.0 [110/11112] via 112.112.112.2, 00:01:35, Tunnel1
     112.0.0.0/24 is subnetted, 1 subnets
C       112.112.112.0 is directly connected, Tunnel1
     11.0.0.0/32 is subnetted, 1 subnets
C       11.11.11.11 is directly connected, Loopback0
     12.0.0.0/24 is subnetted, 1 subnets
C       12.12.12.0 is directly connected, FastEthernet0/0

R1#ping 33.33.33.33 so lo0

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 33.33.33.33, timeout is 2 seconds:
Packet sent with a source address of 11.11.11.11 
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/17/40 ms


R1#trace 33.33.33.33 so lo0

Type escape sequence to abort.
Tracing the route to 33.33.33.33

  1 112.112.112.2 4 msec 4 msec 4 msec
  2 23.23.23.3 12 msec *  24 msec

HTH...
Deepak Arora

Thursday, November 25, 2010

Tuesday, September 14, 2010

OSPF Mock Lab - Another Challenge To Solve (Solution 1)

So after a little long I am back with Solution of OSPF mock lab challenge. But good part is that someone actually solved the puzzle and won the prize. 

Yup...Manish Salaria

Although his solution was different from mine and looks easier to configure, but if you will get into details about how packet is flowing between R2's loop-back and R6's loop-back then things might get little complicated to understand in first look.

Anyways here I am posting his solution, soon this week I'll post mine too. With his solution though I am not putting any explanation here but mine solution will be having detailed walk through.

I changed interface numbering a little bit as I tested this on different PC running Linux and different Set of IOS.  So you may want to adjust interface numbering under initial configuration I gave in first post.


Here is quick GNS topology I used: Click on Image for better view




So here we go: 


R1:
R1#sh ip int b | e una|do
Interface                  IP-Address      OK? Method Status                Protocol
Serial0/0                  123.123.123.1   YES manual up                    up     
FastEthernet1/0            14.14.14.1      YES manual up                  up     
Loopback0                  11.11.11.11     YES manual up                   up  



R1#sh run int s0/0
Building configuration...

Current configuration : 337 bytes
!
interface Serial0/0
 ip address 123.123.123.1 255.255.255.0
 encapsulation frame-relay
 ip ospf network point-to-multipoint
 serial restart-delay 0
 no arp frame-relay
 frame-relay map ip 123.123.123.1 102
 frame-relay map ip 123.123.123.2 102 broadcast
 frame-relay map ip 123.123.123.3 103 broadcast
 no frame-relay inverse-arp
end


R1#sh run | s r o
router ospf 1
 router-id 1.1.1.1
 log-adjacency-changes
 network 14.14.14.1 0.0.0.0 area 1
 network 123.123.123.1 0.0.0.0 area 0


R1#sh ip ro | b ^G  
Gateway of last resort is 14.14.14.4 to network 0.0.0.0

     33.0.0.0/24 is subnetted, 1 subnets
O       33.33.33.0 [110/65] via 123.123.123.3, 02:39:10, Serial0/0
     22.0.0.0/24 is subnetted, 1 subnets
O       22.22.22.0 [110/65] via 123.123.123.2, 02:39:10, Serial0/0
     144.144.0.0/32 is subnetted, 1 subnets
O       144.144.144.144 [110/2] via 14.14.14.4, 02:18:00, FastEthernet1/0
     11.0.0.0/24 is subnetted, 1 subnets
C       11.11.11.0 is directly connected, Loopback0
     123.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
O       123.123.123.3/32 [110/64] via 123.123.123.3, 02:39:10, Serial0/0
O       123.123.123.2/32 [110/64] via 123.123.123.2, 02:39:10, Serial0/0
C       123.123.123.0/24 is directly connected, Serial0/0
     14.0.0.0/24 is subnetted, 1 subnets
C       14.14.14.0 is directly connected, FastEthernet1/0
O*E2 0.0.0.0/0 [110/1] via 14.14.14.4, 02:18:00, FastEthernet1/0



R2:


R2#sh prot | e una|do  
Global values:
  Internet Protocol routing is enabled
Serial0/0 is up, line protocol is up
  Internet address is 123.123.123.2/24
Loopback0 is up, line protocol is up
  Internet address is 22.22.22.22/24


R2#sh run int s0/0
Building configuration...

Current configuration : 289 bytes
!
interface Serial0/0
 ip address 123.123.123.2 255.255.255.0
 encapsulation frame-relay
 ip ospf network point-to-multipoint
 serial restart-delay 0
 no arp frame-relay
 frame-relay map ip 123.123.123.1 201 broadcast
 frame-relay map ip 123.123.123.2 201
 no frame-relay inverse-arp
end





R2#sh run | s r o
router ospf 1
 router-id 2.2.2.2
 log-adjacency-changes
 network 123.123.123.2 0.0.0.0 area 0



 R2#sh ip ro | b ^G
Gateway of last resort is 123.123.123.1 to network 0.0.0.0

     33.0.0.0/24 is subnetted, 1 subnets
O       33.33.33.0 [110/129] via 123.123.123.1, 02:43:09, Serial0/0
     22.0.0.0/24 is subnetted, 1 subnets
C       22.22.22.0 is directly connected, Loopback0
     144.144.0.0/32 is subnetted, 1 subnets
O IA    144.144.144.144 [110/66] via 123.123.123.1, 02:41:42, Serial0/0
     11.0.0.0/24 is subnetted, 1 subnets
O       11.11.11.0 [110/65] via 123.123.123.1, 02:43:09, Serial0/0
     123.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
O       123.123.123.3/32 [110/128] via 123.123.123.1, 02:43:09, Serial0/0
O       123.123.123.1/32 [110/64] via 123.123.123.1, 02:43:09, Serial0/0
C       123.123.123.0/24 is directly connected, Serial0/0
     14.0.0.0/24 is subnetted, 1 subnets
O IA    14.14.14.0 [110/65] via 123.123.123.1, 02:43:09, Serial0/0
O*E2 0.0.0.0/0 [110/1] via 123.123.123.1, 02:22:04, Serial0/0
 

R3:


R3#sh prot | e una|do
Global values:
  Internet Protocol routing is enabled
Serial0/0 is up, line protocol is up
  Internet address is 123.123.123.3/24
Loopback0 is up, line protocol is up
  Internet address is 33.33.33.33/24


R3#sh run int s0/0
Building configuration...

Current configuration : 289 bytes
!
interface Serial0/0
 ip address 123.123.123.3 255.255.255.0
 encapsulation frame-relay
 ip ospf network point-to-multipoint
 serial restart-delay 0
 no arp frame-relay
 frame-relay map ip 123.123.123.1 301 broadcast
 frame-relay map ip 123.123.123.3 301
 no frame-relay inverse-arp
end
 

 R3#sh run | s r o
 router ospf 1
 router-id 3.3.3.3
 log-adjacency-changes
 network 123.123.123.3 0.0.0.0 area 0


R3#sh ip ro | b ^G
Gateway of last resort is 123.123.123.1 to network 0.0.0.0

     33.0.0.0/24 is subnetted, 1 subnets
C       33.33.33.0 is directly connected, Loopback0
     22.0.0.0/24 is subnetted, 1 subnets
O       22.22.22.0 [110/129] via 123.123.123.1, 02:46:13, Serial0/0
     144.144.0.0/32 is subnetted, 1 subnets
O IA    144.144.144.144 [110/66] via 123.123.123.1, 02:44:36, Serial0/0
     11.0.0.0/24 is subnetted, 1 subnets
O       11.11.11.0 [110/65] via 123.123.123.1, 02:46:13, Serial0/0
     123.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
O       123.123.123.2/32 [110/128] via 123.123.123.1, 02:46:13, Serial0/0
O       123.123.123.1/32 [110/64] via 123.123.123.1, 02:46:13, Serial0/0
C       123.123.123.0/24 is directly connected, Serial0/0
     14.0.0.0/24 is subnetted, 1 subnets
O IA    14.14.14.0 [110/65] via 123.123.123.1, 02:46:13, Serial0/0
O*E2 0.0.0.0/0 [110/1] via 123.123.123.1, 02:24:58, Serial0/0




R4:


R4#sh prot | e una|do
Global values:
  Internet Protocol routing is enabled
FastEthernet0/0 is up, line protocol is up
  Internet address is 14.14.14.4/24
FastEthernet1/0 is up, line protocol is up
  Internet address is 45.45.45.4/24
Loopback0 is up, line protocol is up
  Internet address is 44.44.44.44/24
Loopback1 is up, line protocol is up
  Internet address is 144.144.144.144/24


R4#sh run | s r r
router rip
 version 2
 network 44.0.0.0
 network 45.0.0.0
 no auto-summary




R4#sh run | s r o
router ospf 1
 router-id 4.4.4.4
 log-adjacency-changes
 network 14.14.14.4 0.0.0.0 area 1
 default-information originate always


  
R4#sh ip ro | b  ^G
Gateway of last resort is 45.45.45.5 to network 0.0.0.0

     155.155.0.0/24 is subnetted, 1 subnets
R       155.155.155.0 [120/1] via 45.45.45.5, 00:00:24, FastEthernet1/0
     33.0.0.0/24 is subnetted, 1 subnets
O IA    33.33.33.0 [110/66] via 14.14.14.1, 02:28:36, FastEthernet0/0
     22.0.0.0/24 is subnetted, 1 subnets
O IA    22.22.22.0 [110/66] via 14.14.14.1, 02:28:36, FastEthernet0/0
     144.144.0.0/24 is subnetted, 1 subnets
C       144.144.144.0 is directly connected, Loopback1
     11.0.0.0/24 is subnetted, 1 subnets
O IA    11.11.11.0 [110/2] via 14.14.14.1, 02:28:36, FastEthernet0/0
     123.0.0.0/32 is subnetted, 3 subnets
O IA    123.123.123.3 [110/65] via 14.14.14.1, 02:28:36, FastEthernet0/0
O IA    123.123.123.2 [110/65] via 14.14.14.1, 02:28:36, FastEthernet0/0
O IA    123.123.123.1 [110/1] via 14.14.14.1, 02:28:36, FastEthernet0/0
     44.0.0.0/24 is subnetted, 1 subnets
C       44.44.44.0 is directly connected, Loopback0
     14.0.0.0/24 is subnetted, 1 subnets
C       14.14.14.0 is directly connected, FastEthernet0/0
     45.0.0.0/24 is subnetted, 1 subnets
C       45.45.45.0 is directly connected, FastEthernet1/0
R*   0.0.0.0/0 [120/1] via 45.45.45.5, 00:00:24, FastEthernet1/0



R5:


R5#sh prot | e una|do
Global values:
  Internet Protocol routing is enabled
FastEthernet0/0 is up, line protocol is up
  Internet address is 45.45.45.5/24
FastEthernet1/0 is up, line protocol is up
  Internet address is 56.56.56.5/24
Loopback0 is up, line protocol is up
  Internet address is 55.55.55.55/24
Loopback1 is up, line protocol is up
  Internet address is 155.155.155.155/24


R5#sh run | i ip route
ip route 0.0.0.0 0.0.0.0 45.45.45.4
 

 R5#sh run | s r r
 router rip
 version 2
 network 45.0.0.0
 network 155.155.0.0
 default-information originate
 no auto-summary



R5#sh run | s r o    
router ospf 1
 router-id 5.5.5.5
 log-adjacency-changes
 network 56.56.56.5 0.0.0.0 area 2
 default-information originate



R5#sh ip ro | b ^G
Gateway of last resort is 45.45.45.4 to network 0.0.0.0

     155.155.0.0/24 is subnetted, 1 subnets
C       155.155.155.0 is directly connected, Loopback1
     55.0.0.0/24 is subnetted, 1 subnets
C       55.55.55.0 is directly connected, Loopback0
     66.0.0.0/24 is subnetted, 1 subnets
O       66.66.66.0 [110/2] via 56.56.56.6, 00:01:00, FastEthernet1/0
     56.0.0.0/24 is subnetted, 1 subnets
C       56.56.56.0 is directly connected, FastEthernet1/0
     44.0.0.0/24 is subnetted, 1 subnets
R       44.44.44.0 [120/1] via 45.45.45.4, 00:00:07, FastEthernet0/0
     45.0.0.0/24 is subnetted, 1 subnets
C       45.45.45.0 is directly connected, FastEthernet0/0
S*   0.0.0.0/0 [1/0] via 45.45.45.4

 

R6:


R6#sh prot | e una|do
Global values:
  Internet Protocol routing is enabled
FastEthernet0/0 is up, line protocol is up
  Internet address is 56.56.56.6/24
Loopback0 is up, line protocol is up
  Internet address is 66.66.66.66/24


 R6#sh run | s r o
 router ospf 1
 router-id 6.6.6.6
 log-adjacency-changes
 network 56.56.56.6 0.0.0.0 area 2



R6#sh ip ro | b ^G
Gateway of last resort is 56.56.56.5 to network 0.0.0.0

     55.0.0.0/24 is subnetted, 1 subnets
O       55.55.55.0 [110/2] via 56.56.56.5, 02:12:56, FastEthernet0/0
     66.0.0.0/24 is subnetted, 1 subnets
C       66.66.66.0 is directly connected, Loopback0
     56.0.0.0/24 is subnetted, 1 subnets
C       56.56.56.0 is directly connected, FastEthernet0/0
O*E2 0.0.0.0/0 [110/1] via 56.56.56.5, 02:03:20, FastEthernet0/0

Final Reachability Check using TCL:


tclsh
foreach address {
123.123.123.1
14.14.14.1
11.11.11.11
123.123.123.2
22.22.22.22
123.123.123.3
33.33.33.33
14.14.14.4
45.45.45.4
44.44.44.44
144.144.144.144
45.45.45.5
56.56.56.5
55.55.55.55
155.155.155.155
56.56.56.6
66.66.66.66
} {ping $address}



HTH...
Deepak Arora



Sunday, July 11, 2010

CCIE R&S Version 4 Lab Demo - By Cisco

If you are pursuing CCIE R&S ver 4 and ever been interested to see it's demo to get the feel of environment of Giant CCIE R&S lab exam then here is a gr8 URL for you to get that feel :-)

https://learningnetwork.cisco.com/static/video-wp/CCIE_RS_v4_Lab_Exam_Demo_640x480-v2.htm

HTH...
Deepak Arora

Friday, July 9, 2010

Tuesday, March 9, 2010

Free OEQs For CCIE R&S

I am not sure if you guys knows this already, but one of the famous CCIE R&S Workbook seller/ Cisco CCIE R&S 360 partner NMC shares one OEQ free of charge everyday on it's website. 


This is actually part of their CCIE Written Preparation Product which costs around 99 USD for full version.


But if you visit their website everyday, you can find one New OEQ everyday free of charge :)

http://www.netmasterclass.com/CCIE/Self-Paced-Products/Written/


Regards,
Deepak Arora

Thursday, February 25, 2010

Some More Latest CCIE Mock Labs in Free - From IP Expert

One of the market leader in CCIE workbooks - IPExpert has recently upgraded it's website to a whole new look. Along with this makeover they have put one section of each workbook (for each track) on there website which is also downloadble. I just download CCIE SP vol 2 sample mock lab from there and it looks very impressive to me.

One Complete CCIE SP mock lab with detailed solution and initial configs....what else you want ?

I am hoping to buy Full copy of vol 2 soon too.

Here are the quick links to download samples of each volume for each track.

R&S:

Vol 1  -  http://www.ipexpert.com/samples/CCIE-RS-Vol1-Ver4-Sample.zip

Vol 2 - http://www.ipexpert.com/samples/IPexpert-CCIE-RS-Ver3-Vol2-Sample.zip

Vol 3 - http://www.ipexpert.com/samples/IPexpert-CCIE-RS-Vol3-WB-Sample.zip

SP:

Vol 1 - http://www.ipexpert.com/samples/IPexpert-CCIE-SP-Vol1-WB-Sample.zip

Vol 2 - http://www.ipexpert.com/samples/IPexpert-CCIE-SP-Vol2-WB-Sample.zip

Security:

Vol 1 - http://www.ipexpert.com/samples/IPexpert-CCIE-Security-Ver3-Vol1-Sample.zip

Vol 2 - http://www.ipexpert.com/samples/IPexpert-CCIE-Security-Ver3-Vol2-Sample.zip

Voice:

Vol 1 - http://www.ipexpert.com/samples/IPexpert%27s-CCIE-Voice-Vol1-Sample.zip

Vol 2 - http://www.ipexpert.com/samples/IPexpert%27s-CCIE-Voice-Vol2-Sample.zip

Happy Studying....

Best Regards,
Deepak Arora

Some CCIE Short Notes For Version 4 R&S Lab in free - From CCIE Ruhann

I just purchased copy of CCIE R&S Short Notes yesterday and it looks great to me. These notes are very handy in many situation like someone like me who is aiming for CCIE, Some CCIEs and CCIE Lab Candidates who want to revise technologies quickly, CCIE Written Candidates and in last but not least Good for revising technologies quickly just a day before an interview :)

Although I purchaed the full version in 88 USD + money conversion cost. But there are some free chapters available to review before buying and are also very handy. So take a look :)

http://blog.ru.co.za/2010/01/31/what-is-short-notes/


http://blog.ru.co.za/ccie-rs-short-notes-v4/



Best Regards,
Deepak Arora