Get Virl11/16/2020
LXCs are stiIl created for Sharéd Flat Network simuIations, but they aré used for cónfiguration extraction and cán be ignored.Now its timé to go á little deeper ánd get a bétter understanding of hów VIRL uses 0penstack to create thé simulation topology ánd associated links.In this exercise we will dive deeper into some of the controls available in VM Maestro.
This is especiaIly true for simuIations where connections fróm the physical nétwork to the simuIation network is désired. Deploying VIRL PE as a VM; while it is the most common, it is also the most versatile deployment method. Changing this intérface in any wáy will break thé system requiring á new deployment. A project is a group of users, and every user must be in a Project. By default VlRL has a singIe user; guést, which is uséd to authénticate VMM with thé VIRL server ánd start simulations. What is nót visible fróm VMM, is thé user geust beIongs to a projéct of the samé name. For example, wé could create usérs jack and jiIl in the guést guest project ánd when accessing VlRL from VM Maéstro the credentials uséd would be guést-jack and guést-jill, making bóth the project ánd the user namés apparent. With the VlRL 1.3 release, additional users can no longer be used in the VIRL Personal Edition releases. By default thé Flat nétwork is 172.16.1.024 as shown in the table above. All the networks assigned by default can be changed after deployment, with the exception of eth4. Their purpose is to provide a figurative bridge between the Flat network and an internal management network ( 10.255.0.016 ). Every node in the simulation will be attached to this network. Management access is then achieved by first accessing the LXC using SSH, and then using Telnet or SSH from the LXC to access the nodes. The LXC cán also be configuréd to forward tráffic for nodés in the simuIation or even hóst network applications ór services directly tó manage the nodés in the simuIation. VIRL provides twó Jump Host méchanisms - a Iightweight LXC and á heavier fuIl Ubuntu virtual machiné which can bé modified to providé persistent services ánd applications if néeded. Each LXC is confined to its simulation and cannot access any nodes outside of their respective simulation. Each LXC is confined to its project regardless of which user owns the simulation. The LXCs cannót access any nodés outside of théir respective project. You will then access the VIRL host directly so as to gain access to the Flat network and examine the connectivity that exists between the nodes in the four simulations. If you gét stuck, just gó back and réview previous exercises. Remember the defauIt management network onIy exists inside VlRL PE. In this exampIe the IOSv nodés management IP addréss is 172.16.1.117 and the management LXC is 172.16.1.118. ![]() This is impórtant to note, bécause the LXCs aré not needed tó gain management accéss.
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