Questions tagged [gns3]

For questions about network simulations in the Graphical Network Simulator-3 (GNS3).

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GNS3 Latency test

So I have a small topology ( 4 AS ), and I tested it on a real environment (College Lab) with Cisco routers (2000 series). The latency from one point to another was too high when I used GNS3, the ...
1
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2answers
1k views

How to make virtual devices on GNS3 be able to ping the physical host

I have had this problem already and figured out its reason. Basically the problem is that the virtual devices on GNS3 cannot ping the physical host and also the physical host cannot ping the virtual ...
3
votes
1answer
332 views

Could launching a virtual router with less-than-recommened RAM cause interfaces to not initialize?

I'm trying to launch a few vSRX devices through GNS3 (and VirtualBox). The issue that I'm running into (I think) is that my interfaces seem to not properly initialize if I don't start the instances ...
2
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0answers
7k views

Setup the BGP + ospf network

I've the next Lab with GNS3 I have two autonomous systems(100,200), when the AS 100 run a OSPF with two areas, 0 and 1. The AS 200 has only a router and computer, so easy. But I don't know how to ...
3
votes
2answers
4k views

Virtual devices on GNS3 cannot ping the physical host

On GNS3 I have developed the following network: The enp2s0f2 is my own computer network interface. The router R1 configuration is shown below: R1#show running-config Building configuration... ...