Install vMX on KVM

cd /var/tmp/

wget "https://cdn.juniper.net/software/vmx/17.3R1.10/vm x-bundle-17.3R1.10.tgz?SM_USER=jkriker&__gda__=1515493714_7a8ffdsfsadfsadf" -O vmx-bundle-17.3R1.10.tgz

tar -zxvf vm x-bundle-17.3R1.10.tgz

cd ./vmx/images

ls

[root@hp8300 images]# cp junos-vmx-x86-64-17.4R1.16.qcow2 /home/vmx/vmxlite/images/
[root@hp8300 images]# cp vFPC-20171213.img /home/vmx/vmxlite/images/
[root@hp8300 images]# cp vmxhdd.img /home/vmx/vmxlite/images/
[root@hp8300 images]#

https://www.juniper.net/documentation/en_US/vmx17.4/topics/task/installation/vmx-use-cases-installing.html

Edit the config/vmx.conf 

#Configuration on the host side - management interface, VM images etc.

HOST:

    identifier                : vmx1   # Maximum 4 characters
    host-management-interface : eth0
    routing-engine-image      : "/home/vmx/vmxlite/images/junos-vmx-x86-64.qcow2"
    routing-engine-hdd        : "/home/vmx/vmxlite/images/vmxhdd.img"
    forwarding-engine-image   : "/home/vmx/vmxlite/images/vFPC.img"

#External bridge configuration
BRIDGES:
- type : external
name : br0           #br-ext # Max 10 characters