# General **URL:** https://forum.networklessons.com/c/general/6.md [Latest](https://forum.networklessons.com/latest.md) · [Categories](https://forum.networklessons.com/categories.md) --- ## [About the General category](https://forum.networklessons.com/t/about-the-general-category/12)
**Author:** [@ReneMolenaar](https://forum.networklessons.com/u/ReneMolenaar)\ **Replies:** 2\ **Last updated:** [June 9, 2025, 5:38am UTC](https://forum.networklessons.com/t/about-the-general-category/12 "2025-06-09T05:38:23Z")
Want to say hello? Want to discuss anything non-technical or looking to build your own lab? This is the category you are looking for. --- ## [Windows PC Requirements](https://forum.networklessons.com/t/windows-pc-requirements/58772)
**Author:** [@mx.linx76](https://forum.networklessons.com/u/mx.linx76)\ **Replies:** 7\ **Last updated:** [January 15, 2026, 6:12am UTC](https://forum.networklessons.com/t/windows-pc-requirements/58772 "2026-01-15T06:12:56Z")
Hi, I’m looking to buy a PC to run Cisco Modeling Labs. Can someone advise what is the minimum requirements I need to run CML? processor? ram? Please advise. Thank you. --- ## [Discussion about the throughputs and license features of Cisco devices](https://forum.networklessons.com/t/discussion-about-the-throughputs-and-license-features-of-cisco-devices/58751)
**Author:** [@ishtiaqahmed811](https://forum.networklessons.com/u/ishtiaqahmed811)\ **Replies:** 4\ **Last updated:** [November 29, 2025, 9:14am UTC](https://forum.networklessons.com/t/discussion-about-the-throughputs-and-license-features-of-cisco-devices/58751 "2025-11-29T09:14:11Z")
Hi, I wanted to know if there is any such ongoing discussion about the different models of Cisco routers and their throughputs. For example ISR 4000 series router(4221,4331 etc), ISR 1100 Series C1111-4p, C1111-8p. What… --- ## [What is the safest way to connect a homelab to the internet?](https://forum.networklessons.com/t/what-is-the-safest-way-to-connect-a-homelab-to-the-internet/58749)
**Author:** [@davidilles](https://forum.networklessons.com/u/davidilles)\ **Replies:** 1\ **Last updated:** [November 16, 2025, 12:24pm UTC](https://forum.networklessons.com/t/what-is-the-safest-way-to-connect-a-homelab-to-the-internet/58749 "2025-11-16T12:24:51Z")
Hello, everyone! I’m starting my CCNP Service Provider studies and I had to get a server (128GB RAM, 2X 28C CPU) for it because Cisco decided that an IOS XR node will be as big as one gaming PC and my current desktop ca… --- ## [SFP/Port-channel 9500/ASR1001/3850](https://forum.networklessons.com/t/sfp-port-channel-9500-asr1001-3850/58735)
**Author:** [@jasonbrickley2006](https://forum.networklessons.com/u/jasonbrickley2006)\ **Replies:** 1\ **Last updated:** [October 20, 2025, 6:00am UTC](https://forum.networklessons.com/t/sfp-port-channel-9500-asr1001-3850/58735 "2025-10-20T06:00:25Z")
Hi Team, Hope you can you help me? I have some inconsistent behaviour with some connections between switches. I have two separate scenarios that may or may not be related. Scenario one I have a 3850-switch stack Vers… --- ## [Cisco Modeling Labs is Free](https://forum.networklessons.com/t/cisco-modeling-labs-is-free/58737)
**Author:** [@mx.linx76](https://forum.networklessons.com/u/mx.linx76)\ **Replies:** 1\ **Last updated:** [October 24, 2025, 2:07pm UTC](https://forum.networklessons.com/t/cisco-modeling-labs-is-free/58737 "2025-10-24T14:07:41Z")
Hi Everyone, FYI, Cisco modeling labs now have a free-tier. You just need to create a Cisco account and download the labs to get started if you are preparing for the CCNA exam. Please refer if you have any further ques… --- ## [GNS3 images](https://forum.networklessons.com/t/gns3-images/15730)
**Author:** [@rvasq10465](https://forum.networklessons.com/u/rvasq10465)\ **Replies:** 2\ **Last updated:** [October 24, 2025, 5:12am UTC](https://forum.networklessons.com/t/gns3-images/15730 "2025-10-24T05:12:51Z")
Hi i just set up GNS 3 and don’t know how to get images. I’m a member here and I thought I can use what the community is using. Can somebody help me? --- ## [What to do next?](https://forum.networklessons.com/t/what-to-do-next/58713)
**Author:** [@davidilles](https://forum.networklessons.com/u/davidilles)\ **Replies:** 1\ **Last updated:** [September 1, 2025, 8:32am UTC](https://forum.networklessons.com/t/what-to-do-next/58713 "2025-09-01T08:32:52Z")
Hi everyone. I’ve recently became CCNP Enterprise certified and I need some guidance regarding what to do next. The IT world is big and competitive so I can’t stop now and tell myself that I am done for the year. I was… --- ## [How to change my username on this forum](https://forum.networklessons.com/t/how-to-change-my-username-on-this-forum/24993)
**Author:** [@wonglili](https://forum.networklessons.com/u/wonglili)\ **Replies:** 9\ **Last updated:** [June 17, 2025, 2:58pm UTC](https://forum.networklessons.com/t/how-to-change-my-username-on-this-forum/24993 "2025-06-17T14:58:44Z")
Hello, I would like to change my name show on the post. How to do it? --- ## [CML PC and HOST Computer configuration](https://forum.networklessons.com/t/cml-pc-and-host-computer-configuration/56553)
**Author:** [@carlbn1956](https://forum.networklessons.com/u/carlbn1956)\ **Replies:** 1\ **Last updated:** [April 14, 2025, 3:41pm UTC](https://forum.networklessons.com/t/cml-pc-and-host-computer-configuration/56553 "2025-04-14T15:41:01Z")
I would like to know how to configure the DESKTOPs IN CML. --- ## [Hola, soy Ana de México](https://forum.networklessons.com/t/hola-soy-ana-de-mexico/55495)
**Author:** [@analuisa.vargasramir](https://forum.networklessons.com/u/analuisa.vargasramir)\ **Replies:** 2\ **Last updated:** [February 18, 2025, 10:18am UTC](https://forum.networklessons.com/t/hola-soy-ana-de-mexico/55495 "2025-02-18T10:18:56Z")
Who are you? … Where are you? … What stage are you in? Are you a beginner in networking? A veteran studying for a CCIE exam? … --- ## [How to save configurations on CML - desktops](https://forum.networklessons.com/t/how-to-save-configurations-on-cml-desktops/54356)
**Author:** [@tasaramahlahla](https://forum.networklessons.com/u/tasaramahlahla)\ **Replies:** 3\ **Last updated:** [January 3, 2025, 2:38pm UTC](https://forum.networklessons.com/t/how-to-save-configurations-on-cml-desktops/54356 "2025-01-03T14:38:32Z")
Hi Team, I hope everyone is doing well. I am trying to play around with free tier CML to follow Trunking on IOS Switch, but the challenge is when I stop the desktop device, all the configurations will disappear. To conf… --- ## [Policy Based Routing Configuration](https://forum.networklessons.com/t/policy-based-routing-configuration/54459)
**Author:** [@tasaramahlahla](https://forum.networklessons.com/u/tasaramahlahla)\ **Replies:** 3\ **Last updated:** [December 30, 2024, 7:55pm UTC](https://forum.networklessons.com/t/policy-based-routing-configuration/54459 "2024-12-30T19:55:18Z")
Hi Rene and Team, I do not regret investing in this platform, I am enjoying every topic because Rene, is making the complex simple. When I work in my lab, I imagine I am working for a client, so I ask myself a couple of… --- ## [Looking to understand Port-Groups on ESXi host](https://forum.networklessons.com/t/looking-to-understand-port-groups-on-esxi-host/54148)
**Author:** [@irvswirve1](https://forum.networklessons.com/u/irvswirve1)\ **Replies:** 1\ **Last updated:** [December 13, 2024, 7:57am UTC](https://forum.networklessons.com/t/looking-to-understand-port-groups-on-esxi-host/54148 "2024-12-13T07:57:20Z")
How many Port-Groups can be added to a vSwitch? The Physical port of the server and the physical port it connects to in the switch they both need to be trunk..Correct? As long as you have the port-groups (multiple VLANs)… --- ## [Career Advice](https://forum.networklessons.com/t/career-advice/52563)
**Author:** [@davidilles](https://forum.networklessons.com/u/davidilles)\ **Replies:** 5\ **Last updated:** [October 18, 2024, 4:48pm UTC](https://forum.networklessons.com/t/career-advice/52563 "2024-10-18T16:48:35Z")
Hello, everyone. This might be a rather more unusual topic here as many threads are focused on specific Cisco topics. I have a question and a decision to make that will shape my future and since a lot of people here are… --- ## [WAN Connection(Layer 1)](https://forum.networklessons.com/t/wan-connection-layer-1/51475)
**Author:** [@ychi2005](https://forum.networklessons.com/u/ychi2005)\ **Replies:** 1\ **Last updated:** [August 22, 2024, 6:16am UTC](https://forum.networklessons.com/t/wan-connection-layer-1/51475 "2024-08-22T06:16:21Z")
Hi, I have some questions about WAN connection I know LAN network can make Ethernet connection using UTP cable and optical connection using SFP module, but it is difficult when it comes to WAN. So, I have two questions… --- ## [CLM breakout tool](https://forum.networklessons.com/t/clm-breakout-tool/48687)
**Author:** [@brandubh628](https://forum.networklessons.com/u/brandubh628)\ **Replies:** 1\ **Last updated:** [June 19, 2024, 6:39am UTC](https://forum.networklessons.com/t/clm-breakout-tool/48687 "2024-06-19T06:39:49Z")
Hello, if you are working with CML maybe you find the console window below the topology lab in CML not handy or easy to manage. CML uses the ‘Break Out Tool’. Youtube: https://www.youtube.com/watch?v=tfAsXmT0vQA or ht… --- ## [GRE/IPsec tunneling through VRF's](https://forum.networklessons.com/t/gre-ipsec-tunneling-through-vrfs/48392)
**Author:** [@ckress](https://forum.networklessons.com/u/ckress)\ **Replies:** 1\ **Last updated:** [June 5, 2024, 1:10pm UTC](https://forum.networklessons.com/t/gre-ipsec-tunneling-through-vrfs/48392 "2024-06-05T13:10:34Z")
Hello All, Hoping to pick the brains of others on a issue I’m trying to solve in my lab. I created this lab based on a practice question I saw somewhere at one point in time. Not even sure if what I’m trying to do is po… --- ## [Career advice: t-shoot first, then network design?](https://forum.networklessons.com/t/career-advice-t-shoot-first-then-network-design/38026)
**Author:** [@molnarattila1221](https://forum.networklessons.com/u/molnarattila1221)\ **Replies:** 10\ **Last updated:** [June 3, 2024, 5:06am UTC](https://forum.networklessons.com/t/career-advice-t-shoot-first-then-network-design/38026 "2024-06-03T05:06:16Z")
Hello, I’d like to ask for some career advice if possible. All things being equal, which position is best for someone starting in the field of networking engineering: a job involving troubleshooting, or a job not invol… --- ## [Interview questions!](https://forum.networklessons.com/t/interview-questions/3656)
**Author:** [@mhpavithra](https://forum.networklessons.com/u/mhpavithra)\ **Replies:** 16\ **Last updated:** [May 27, 2024, 4:57am UTC](https://forum.networklessons.com/t/interview-questions/3656 "2024-05-27T04:57:57Z")
Hi ReneMolenaar, I am struggling to answer these 4 questions in interview How internet works ? Tell me the Whole process while you type facebook.com or youtube.com on your browser. Need deep explanation Explain a… --- ## [Hardware for Lab](https://forum.networklessons.com/t/hardware-for-lab/37438)
**Author:** [@Michael3](https://forum.networklessons.com/u/Michael3)\ **Replies:** 3\ **Last updated:** [June 19, 2023, 11:38am UTC](https://forum.networklessons.com/t/hardware-for-lab/37438 "2023-06-19T11:38:53Z")
Hello, I would like to get a hardware where I can lab/learn and test SD-WAN network along with CCIE and Juniper labs using EVE-NG virtualization. I cant decide whether to go with Intel NUC 13 Raptor CPU or buy used ref… --- ## [Netlab Emulator](https://forum.networklessons.com/t/netlab-emulator/47790)
**Author:** [@castrojuanj](https://forum.networklessons.com/u/castrojuanj)\ **Replies:** 1\ **Last updated:** [May 15, 2024, 11:20am UTC](https://forum.networklessons.com/t/netlab-emulator/47790 "2024-05-15T11:20:27Z")
Hello everyone, Have you ever tried Netlab ? (https://blog.ipspace.net/tag/netlab.html) i’ve listened a podcast on YT (packet pushers) and this seems to be pretty interesting. Despite is not a GUI emulator/topology bu… --- ## [Designing scalable networks and automation (Meta Interview Question)](https://forum.networklessons.com/t/designing-scalable-networks-and-automation-meta-interview-question/45665)
**Author:** [@neeraj.menon.m](https://forum.networklessons.com/u/neeraj.menon.m)\ **Replies:** 3\ **Last updated:** [April 2, 2024, 5:53am UTC](https://forum.networklessons.com/t/designing-scalable-networks-and-automation-meta-interview-question/45665 "2024-04-02T05:53:07Z")
Hello All This is my first post here, not sure if its in the right category! I have final interview rounds with Meta for a Network Production Engineer role coming up next week and the Design interview will have question… --- ## [Other Vendor configuration support](https://forum.networklessons.com/t/other-vendor-configuration-support/43724)
**Author:** [@abhayshenoy1188](https://forum.networklessons.com/u/abhayshenoy1188)\ **Replies:** 1\ **Last updated:** [February 26, 2024, 6:25am UTC](https://forum.networklessons.com/t/other-vendor-configuration-support/43724 "2024-02-26T06:25:06Z")
I would like to thank you for all the material so far and its very valuable. I would like to know if there are plans to add more configuration support for other vendors like Juniper / Arista similar to tutorials on Cisco… --- ## [Preconfigured VIRL\\GNS3 labs for ENCORE 350-401 course](https://forum.networklessons.com/t/preconfigured-virl-gns3-labs-for-encore-350-401-course/10001)
**Author:** [@walter.nakatana](https://forum.networklessons.com/u/walter.nakatana)\ **Replies:** 11\ **Last updated:** [August 12, 2023, 6:53am UTC](https://forum.networklessons.com/t/preconfigured-virl-gns3-labs-for-encore-350-401-course/10001 "2023-08-12T06:53:50Z")
HI, In the new CCNP Enterprise course, are there any preconfigured virl/gns3 labs? , or do we have to always build the topology and copy\\paste the initial configs? regards --- ## [Passed CCNA](https://forum.networklessons.com/t/passed-ccna/36404)
**Author:** [@198michael.c.west](https://forum.networklessons.com/u/198michael.c.west)\ **Replies:** 5\ **Last updated:** [May 4, 2023, 9:29pm UTC](https://forum.networklessons.com/t/passed-ccna/36404 "2023-05-04T21:29:55Z")
Rene/Laz Passed my CCNA today. I used Network Lessons with some help from the Official Cert Guide. I want to thank you for your content. Taking a week off. CCNP is next. I will be using Network lessons. Is GNS3 enough f… --- ## [Unable to pin diagrams any lessons](https://forum.networklessons.com/t/unable-to-pin-diagrams-any-lessons/35357)
**Author:** [@Rahul\_K](https://forum.networklessons.com/u/Rahul_K)\ **Replies:** 2\ **Last updated:** [March 30, 2023, 6:24am UTC](https://forum.networklessons.com/t/unable-to-pin-diagrams-any-lessons/35357 "2023-03-30T06:24:09Z")
Team, I do not see the option to pin diagrams any more during lessons. I have checked lessons from multiple courses and it seems to be the case with all of them! Why is this so? Any errors? The option to pin diagrams is … --- ## [Hands on labs](https://forum.networklessons.com/t/hands-on-labs/26762)
**Author:** [@tandonneeraj](https://forum.networklessons.com/u/tandonneeraj)\ **Replies:** 3\ **Last updated:** [March 24, 2023, 5:18am UTC](https://forum.networklessons.com/t/hands-on-labs/26762 "2023-03-24T05:18:02Z")
Hi, I have a background in SW development in Networking domain. I am looking to refresh concepts in Routing and Switching. To do that need some way to perform hands on lab. Is there any tool which I can use to set up s… --- ## [Subscription Fees](https://forum.networklessons.com/t/subscription-fees/34968)
**Author:** [@eagerlearner07](https://forum.networklessons.com/u/eagerlearner07)\ **Replies:** 1\ **Last updated:** [March 6, 2023, 8:53am UTC](https://forum.networklessons.com/t/subscription-fees/34968 "2023-03-06T08:53:17Z")
Hi Team, I really like the content of this website and I have learnt a lot from here. It is my opinion that there should be multiple ways of subscription instead of just the monthly or annually. Is it possible to have… --- ## [thank you for the efforts ](https://forum.networklessons.com/t/thank-you-for-the-efforts/34732)
**Author:** [@i.omara](https://forum.networklessons.com/u/i.omara)\ **Replies:** 1\ **Last updated:** [February 24, 2023, 6:37am UTC](https://forum.networklessons.com/t/thank-you-for-the-efforts/34732 "2023-02-24T06:37:33Z")
the best things that I found on this web site the easy explanation and the teps of how protocols and networking mechanisms work , which let me studying continuously without feeling the tension , thank you for this effor… [Next page](https://forum.networklessons.com/c/general/6.md?page=1)