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<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <topology xmlns="http://www.cisco.com/VIRL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaVersion="0.95" xsi:schemaLocation="http://www.cisco.com/VIRL https://raw.github.com/CiscoVIRL/schema/v0.95/virl.xsd"> <node name="flat-1" type="ASSET" subtype="FLAT" location="429,190"> <interface id="0" name="link0"/> </node> <node name="lxc-1" type="SIMPLE" subtype="lxc" location="520,247"> <extensions> <entry key="config" type="String">#cloud-config
 bootcmd:
 - ln -s -t /etc/rc.d /etc/rc.local
 hostname: lxc-1
 manage_etc_hosts: true
 runcmd:
 - systemctl start rc-local
 - sed -i '/^\s*PasswordAuthentication\s\+no/d' /etc/ssh/sshd_config
 - echo "UseDNS no" >> /etc/ssh/sshd_config
 - service ssh restart
 - service sshd restart
 users:
 - default
 - gecos: User configured by VIRL Configuration Engine 0.23.9
 lock-passwd: false
 name: cisco
 plain-text-passwd: cisco
 shell: /bin/bash
 ssh-authorized-keys:
 - VIRL-USER-SSH-PUBLIC-KEY
 sudo: ALL=(ALL) ALL
 write_files:
 - path: /etc/systemd/system/dhclient@.service
 content: |
 [Unit]
 Description=Run dhclient on %i interface
 After=network.target
 [Service]
 Type=oneshot
 ExecStart=/sbin/dhclient %i -pf /var/run/dhclient.%i.pid -lf /var/lib/dhclient/dhclient.%i.lease
 RemainAfterExit=yes
 owner: root:root
 permissions: '0644'
 - path: /etc/rc.local
 owner: root:root
 permissions: '0755'
 content: |-
 #!/bin/sh
 ifconfig eth1 up
 dhclient -nw eth1
 systemctl start dhclient@eth1.service
 # add second nic connecting clients
 ifconfig eth2 10.10.0.1 netmask 255.255.0.0
 # set default gateway to VIRL host in flat1 
 route del -net default
 route add -net default gw 172.16.1.1
 # change dns
 echo "nameserver 8.8.8.8" >/etc/resolv.conf
 echo "nameserver 8.8.4.4" >>/etc/resolv.conf 
 # enable routing and NAT for 10.10.0.0/16
 sysctl -w net.ipv4.ip_forward=1
 iptables -A POSTROUTING -t nat -s 10.10.0.0/16 -o eth1 -j MASQUERADE
 exit 0
 </entry> </extensions> <interface id="0" name="eth1"/> <interface id="1" name="eth2"/> </node> <node name="lxc-2" type="SIMPLE" subtype="lxc" location="659,241"> <extensions> <entry key="config" type="String">#cloud-config
 bootcmd:
 - ln -s -t /etc/rc.d /etc/rc.local
 hostname: lxc-2
 manage_etc_hosts: true
 runcmd:
 - systemctl start rc-local
 - sed -i '/^\s*PasswordAuthentication\s\+no/d' /etc/ssh/sshd_config
 - echo "UseDNS no" >> /etc/ssh/sshd_config
 - service ssh restart
 - service sshd restart
 users:
 - default
 - gecos: User configured by VIRL Configuration Engine 0.23.9
 lock-passwd: false
 name: cisco
 plain-text-passwd: cisco
 shell: /bin/bash
 ssh-authorized-keys:
 - VIRL-USER-SSH-PUBLIC-KEY
 sudo: ALL=(ALL) ALL
 write_files:
 - path: /etc/systemd/system/dhclient@.service
 content: |
 [Unit]
 Description=Run dhclient on %i interface
 After=network.target
 [Service]
 Type=oneshot
 ExecStart=/sbin/dhclient %i -pf /var/run/dhclient.%i.pid -lf /var/lib/dhclient/dhclient.%i.lease
 RemainAfterExit=yes
 owner: root:root
 permissions: '0644'
 - path: /etc/rc.local
 owner: root:root
 permissions: '0755'
 content: |-
 #!/bin/sh
 ifconfig eth1 10.10.0.100 netmask 255.255.0.0
 # set default gateway to VIRL host in flat1 
 route del -net default
 route add -net default gw 10.10.0.1
 # change dns
 echo "nameserver 8.8.8.8" >/etc/resolv.conf
 echo "nameserver 8.8.4.4" >>/etc/resolv.conf 
 exit 0
 </entry> </extensions> <interface id="0" name="eth1"/> </node> <annotations/> <connection dst="/virl:topology/virl:node[2]/virl:interface[1]" src="/virl:topology/virl:node[1]/virl:interface[1]"/> <connection dst="/virl:topology/virl:node[3]/virl:interface[1]" src="/virl:topology/virl:node[2]/virl:interface[2]"/> </topology>
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