Posts Tagged ‘dynamips’
Twenty full Dynamips practice labs are now posted as part of our best-selling Volume 2 Workbook.
Enjoy the new labs, and as always, thank you for choosing INE!
INE would like to thank Nadeem Rafi for this guest blog post on using GNS3 with Ubuntu! Nadeem is one of our prized CCIE 2.0 Self-Paced students currently studying hard for his CCIE R&S exam. You will often see Nadeem in the INE Online Community working with his fellow students. Nadeem is currently enjoying 100 rack rental tokens from Graded Labs for his excellent post here!
Installing and Dual Booting Ubuntu
Linux is a stable Operating System and applications that do intense calculations can be handled in a more optimized way, as compared to other proprietary Operating Systems. Perhaps one of the best things, however, is the fact that it is free and can co-exist with other Operating Systems.
As our blog polls reveal, many of you are using Dynamips hardware emulator for your CCIE exam preparations So here are some good news for all you Dynamips-fans – we’ve completed and posted ten our of twenty of IEWB-RS-VOL2 labs adapted to the virtual platform. The remaining ten labs are to be completed and posted by end of January 2010 year. Notice that the Dynamips edition of VOL2 workbook could be purchased separately at a discounted price. However, keep in mind the limitations of the Dynamips platform, which restrict the amount of the features you can implement there. For a complete coverage of all relevant IOS features in full-scale labs format, you may want to choose the regular IEWB-RS-VOL2, which includes the Dynamips edition at no extra charge.
Happy studying and thanks for choosing INE!
As many of you know – I am NOT the Dynamips guru around here. For advanced questions on GNS3 and or Dynamips, I immediately direct students to our forum on ieoc.com. That is where all the emulating whiz kids hang out. With that said, I like to have a copy running on every computer I own. While I do not do full practice labs on the platform (I use Graded Labs for that), I love to be able to build little mini-scenarios on the fly whenever I quickly need to test a feature.
Last night I purchased Windows 7 Home Premium and set out to eradicate Windows Vista, doing a “clean install” for the upgrade. I thought I would walk you through the installation of GNS3 on this system as I heard that students have been having issues. Well, here we go (fingers crossed!): Continue Reading
We are thrilled to announce Lab 1 of the Version 4 R&S Dynamips product is released and available in all member accounts that are Volume II subscribers or previous Dynamips subscribers.
Lab 2 should also be completed this week as well.
All 20 labs are targeted for release by Feb 1, 2010.
Happy emulating everyone!
First of all, for those who have just started using Dynamips for their studies I strongly recommend looking over the following link Running IOS on PC. On that page you may also find the links to the Dynagen topology file for the previous edition of our virtual topology. As for GNS3 fans, Brian McGahan is working on the topology for this platform and plans to release it soon as well.
Now for the new Dynamips topology – the main change when comparing to the old one is the replacement of 3640 platform with 3725 router, which supports IOS 12.4T. Best of all, the 3725 routers with “ADV. ENTERPRISE SERVICES” images support most of the IOS features required for the updated CCIE R&S exam, including MPLS VPNs, ZFW, EIGRPv6 and OER. Additionally, the use of 3725 platform means we now have the built-in FastEthernet controller, which allows to get rid of the NM-4E modules used int 3640s. As a consequence, some interface names have changed too – specifically, all “Ethernet 0/X” interfaces have translated to “FastEthernet 0/X”.
You may find a sample .NET file for Dynagen here; the file has been created with a dual-CPU workstation on mind. However, a more powerful platform is recommended to simulate the full CCIE R&S rack (10+3 routers). Notice that you need to provide a correct path to the IOS image used in the topology as well as obtain the image itself. You may also need to edit other directory variables, such as working directory in order to get working configuration. Of course, you may want to play around with the IdlePC value to obtain optimal performance with your hardware platform and operating system. As a side note, two good tricks to reduce the load on your CPU
1) Disable spanning-tree for all VLANs in SW1-SW4 and provide a loopless topology by shutting down unused links and connecting switching in a star topology.
2) Shut down the backbone routers and only bring them up for testing purposes.
And finally, for the Dynamips version of our Full-Scale Labs Workbook. This one is coming right after we finish updating the “classic” VOL2 for the new R&S lab blueprint. You may expect the first “fully-Dynamips” labs to appear by the mid of October.
We are in the progress of upgrading our CCIE Security racks with the new software and hardware. Here are the specs that you can use to build your own rack. The rack consists of six routers, two switches, two ASA firewall appliances and one IPS sensor. The hardware models and their specs are outlined below:
R1-R5: 2611XM 32/128, IOS 12.4(15)T ADVANCED SECURITY
R6: 2811 64/256, IOS 12.4(24)T ADVANCED ENTERPRISE SERVICES
SW1-SW2: CAT3550, IOS 12.2(50)SEE
IPS: Cisco IPS 4235 or 4240, SW version 6.0(3)E1
ASA1-ASA2: Cisco ASA 5510, SW version 8.0
AAA/CA Server: Win 2k running CS ACS 4.0 and IPS Manager Express.
Test PC: Win XP workstation with ezVPN Client Installed.
You can find a more detailed topology description at IE’s Security Hardware List
All the hardware cabling remains the same and the backbone routers did not change. If you compare this to our current hardware blueprint, you will see that only R6 needs to be replaced with an ISR router. Optionally, instead of 2811 you can use another ISR such as 1841 64/192 for R6. If you are using the Dynamips emulator for you virtual CCIE rack, you can use 3725 model for SSL VPN, for instance. Simply put, you just need any router that supports SSL VPN and other ADVANCED ENTERPRISE features. As for the GET VPN feature – even though Cisco FN does not list it as being supported by 2611XM routers, it is still present in the ADV. SECURITY feature set. Surprisingly enough, ADVANCED ENTERPRISE SERVICES image for 2611XM does not support the feature
Now for the IPS appliance: the latest software version for the IPS is 6.2 and it does not support older 4235 or 4215 IPS sensors (nor does version 6.1). Instead the blueprint suggests using the newer 4240 model. However, if you look at the release notes for IPS SW 6.2 and 6.1 you will note the following tow major new features:
a) IPS management via IPS Manager Express
b) IPv6 support
Other updates are minor, including some cosmetic changes such as health monitoring, customizable dashboards, uauthenticated NTP etc. Of course, you can still configure the IPS using IDM (IPS Device Manager) or the CLI and use IMX for appliance monitoring. As for IPv6, it is not the part of the current blueprint; plus the blueprint specifies IPS version 6.1 which does not support IPv6. Therefore, until they announced IPv6 as being testing in the CCIE Security blueprint, you may freely hang with the older IPS models and save on buying the more expensive 4240. Even better, the older 4215 appliance could be emulated on VMware! Note, that you will see the older 4235 models for some more time in our racks, but they are going to be gradually replaced with the newer 4240 models. The labs will still rely on the 6.0 code.
As for the switches – right now we use the 3550s in the racks, but those will be gradually replaced with 3560s. The CCIE hardware blueprint states the use of 3560 and 3750 switches in the lab. If you compare the 3560 model against 3550, you will see the following major differences: different QoS features, IPv6 support in the 3560 and no Private VLANs in the 3550 (even though the FN states they are supported there, sigh). Everything else is virtually the same. While QoS and IPv6 are not very important from the standpoint of the Security exam, Private VLANs are. However, if you look at the CCIE lab exam blueprint, you will see that Private VLANs are not listed there. Based on that, you can stick with the 3550s switches for 99% of the Security features tested in the CCIE lab.
Also, until April 20th you will see the PIX and the VPN3k appliances in our racks. So even if you are still pursuing the old-blueprint exam, you can use the rental racks, as most features are upwards compatible with the updated software. And get ready for the upcoming initial update of our IEWB-SC VOL1 next week – 50+ technology-focused scenarios for the ASA firewall appliance.
Good luck with your studies!