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—documentation:examples:simple_vrrp_lab [2017/07/07 00:23] – created - external edit 127.0.0.1
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 +====== Simple VRRP lab  ======
  
 +
 +===== Network Diagram =====
 +
 +{{:documentation:examples:bsdrp-simple-vrrp-lab.png|}}
 +
 +===== Starting the lab =====
 +
 +More information on these BSDRP lab scripts available on [[documentation:examples:How to build a BSDRP router lab]].
 +
 +Example with the bhyve lab script:
 +
 +<code>
 +# ./BSDRP-lab-bhyve.sh -i /usr/obj/BSDRP.amd64/BSDRP-1.61-full-amd64-vga.img -n 4 -l 2
 +vmm module not loaded. Loading it...
 +nmdm module not loaded. Loading it...
 +if_tap module not loaded. Loading it...
 +BSD Router Project (http://bsdrp.net) - bhyve full-meshed lab script
 +Setting-up a virtual lab with 4 VM(s):
 +- Working directory: /tmp/BSDRP
 +- Each VM have 1 core(s) and 256M RAM
 +- Switch mode: bridge + tap
 +- 2 LAN(s) between all VM
 +- Full mesh Ethernet links between each VM
 +VM 1 have the following NIC:
 +- vtnet0 connected to VM 2.
 +- vtnet1 connected to VM 3.
 +- vtnet2 connected to VM 4.
 +- vtnet3 connected to LAN number 1
 +- vtnet4 connected to LAN number 2
 +VM 2 have the following NIC:
 +- vtnet0 connected to VM 1.
 +- vtnet1 connected to VM 3.
 +- vtnet2 connected to VM 4.
 +- vtnet3 connected to LAN number 1
 +- vtnet4 connected to LAN number 2
 +VM 3 have the following NIC:
 +- vtnet0 connected to VM 1.
 +- vtnet1 connected to VM 2.
 +- vtnet2 connected to VM 4.
 +- vtnet3 connected to LAN number 1
 +- vtnet4 connected to LAN number 2
 +VM 4 have the following NIC:
 +- vtnet0 connected to VM 1.
 +- vtnet1 connected to VM 2.
 +- vtnet2 connected to VM 3.
 +- vtnet3 connected to LAN number 1
 +- vtnet4 connected to LAN number 2
 +For connecting to VM'serial console, you can use:
 +- VM 1 : cu -l /dev/nmdm1B
 +- VM 2 : cu -l /dev/nmdm2B
 +- VM 3 : cu -l /dev/nmdm3B
 +- VM 4 : cu -l /dev/nmdm4B
 +</code>
 +
 +===== Configuring Routers =====
 +
 +==== Router 1 (R1) ====
 +
 +<code>
 +sysrc hostname=R1
 +sysrc ifconfig_vtnet3="inet 192.168.1.1/24"
 +sysrc ifconfig_vtnet4="inet 192.168.2.1/24"
 +sysrc freevrrpd_enable=YES
 +cat <<EOF > /usr/local/etc/freevrrpd.conf 
 +[VRID]
 +serverid = 1
 +interface = vtnet3
 +# This router is the master
 +priority = 101
 +addr = 192.168.1.254/24
 +# We want that this state is dependant with the state of vrid 2
 +vridsdep = 2
 +password = vrid1
 +
 +[VRID]
 +serverid = 2
 +interface = vtnet4
 +# This router is the master
 +priority = 101
 +addr = 192.168.2.254/24
 +password = vrid2
 +# We want that this state is dependant with the state of vrid 1
 +vridsdep = 1
 +EOF
 +service netif restart
 +service freevrrpd start
 +config save
 +</code>
 +
 +==== Router 2 (R2) ====
 +
 +<code>
 +sysrc hostname=R2
 +sysrc ifconfig_vtnet3="inet 192.168.1.2/24"
 +sysrc ifconfig_vtnet4="inet 192.168.2.2/24"
 +sysrc freevrrpd_enable=YES
 +cat <<EOF > /usr/local/etc/freevrrpd.conf 
 +[VRID]
 +serverid = 1
 +interface = vtnet3
 +# This router is the backup
 +priority = 100
 +addr = 192.168.1.254/24
 +# We want that this state is dependant with the state of vrid 2
 +vridsdep = 2
 +password = vrid1
 +
 +[VRID]
 +serverid = 2
 +interface = vtnet4
 +# This router is the backup
 +priority = 100
 +addr = 192.168.2.254/24
 +password = vrid2
 +# We want that this state is dependant with the state of vrid 1
 +vridsdep = 1
 +EOF
 +service netif restart
 +service freevrrpd start
 +config save
 +</code>
 +
 +==== Router 3 (R3) ====
 +
 +<code>
 +sysrc hostname=R3
 +sysrc ifconfig_vtnet3="inet 192.168.1.3/24"
 +sysrc defaultrouter="192.168.1.254"
 +sysrc gateway_enable=NO
 +sysrc ipv6_gateway_enable=NO
 +service netif restart
 +service routing restart
 +config save
 +</code>
 +
 +==== Router 4 (R4) ====
 +
 +<code>
 +sysrc hostname=R4
 +sysrc ifconfig_vtnet4="inet 192.168.2.4/24"
 +sysrc defaultrouter="192.168.2.254"
 +sysrc gateway_enable=NO
 +sysrc ipv6_gateway_enable=NO
 +service netif restart
 +service routing restart
 +config save
 +</code>
 +
 +===== Checking configuration =====
 +
 +==== VRRP state ====
 +
 +On R1:
 +
 +<code>
 +[root@R1]~# grep vrrp /var/log/messages
 +Nov  5 11:37:15 R1 freevrrpd[1177]: launching daemon in background mode
 +Nov  5 11:37:15 R1 freevrrpd[1178]: initializing threads and all VRID
 +Nov  5 11:37:15 R1 freevrrpd[1178]: reading configuration file /usr/local/etc/freevrrpd.conf
 +Nov  5 11:37:15 R1 freevrrpd[1178]: monitored circuits engine initialized
 +Nov  5 11:37:16 R1 freevrrpd[1178]: server state vrid 1: backup
 +Nov  5 11:37:17 R1 freevrrpd[1178]: server state vrid 2: backup
 +Nov  5 11:37:20 R1 freevrrpd[1178]: server state vrid 1: master
 +Nov  5 11:37:21 R1 freevrrpd[1178]: server state vrid 2: master
 +</code>
 +
 +//R1 is VRRP master for vrid 1 and 2.//
 +
 +On R2:
 +
 +<code>
 +[root@R2]~#  grep vrrp /var/log/messages
 +Nov  5 11:41:37 R2 freevrrpd[2091]: launching daemon in background mode
 +Nov  5 11:41:37 R2 freevrrpd[2092]: initializing threads and all VRID
 +Nov  5 11:41:37 R2 freevrrpd[2092]: reading configuration file /usr/local/etc/freevrrpd.conf
 +Nov  5 11:41:37 R2 freevrrpd[2092]: monitored circuits engine initialized
 +Nov  5 11:41:38 R2 freevrrpd[2092]: server state vrid 1: backup
 +Nov  5 11:41:39 R2 freevrrpd[2092]: server state vrid 2: backup
 +</code>
 +
 +//R2 is the VRRP backup for vrid 1 and 2.//
 +
 +==== Forwarding and ARP entry ====
 +
 +Pinging R4 from R3:
 +<code>
 +[root@R3]~# ping 192.168.2.4
 +PING 192.168.2.4 (192.168.2.4): 56 data bytes
 +64 bytes from 192.168.2.4: icmp_seq=0 ttl=63 time=0.669 ms
 +64 bytes from 192.168.2.4: icmp_seq=1 ttl=63 time=0.749 ms
 +64 bytes from 192.168.2.4: icmp_seq=2 ttl=63 time=0.718 ms
 +</code>
 +And checking ARP cache for a VRRP MAC address (00:00:5e:00:01:xx)
 +
 +<code>
 +[root@R3]~#arp -na | grep 192.168.1.254
 +? (192.168.1.254) at 00:00:5e:00:01:01 on vtnet3 expires in 709 seconds [ethernet]
 +
 +</code>
 +
 +==== Testing VRRP swap ====
 +
 +Disable one interface on R1 for changing the VRRP states:
 +<code>
 +
 +[root@R1]~# ifconfig vtnet3 down
 +Nov  5 11:48:40 R1 freevrrpd[1178]: can't write to socket: Network is down
 +Nov  5 11:48:40 R1 freevrrpd[1178]: There is a big problem here !
 +Nov  5 11:48:42 R1 freevrrpd[1178]: interface vtnet3 is faulty, deactivated from VRRP VRIDs
 +Nov  5 11:48:42 R1 freevrrpd[1178]: VRID 2 (interface vtnet4) has been deactivated due to dependance
 +</code>
 +
 +And check that R2 became the master:
 +
 +<code>
 +[root@R2]~#tail -f /var/log/messages
 +Nov  5 11:48:45 R2 freevrrpd[2092]: server state vrid 1: master
 +Nov  5 11:48:48 R2 freevrrpd[2092]: server state vrid 2: master
 +</code>
 +
 +And check that R3 still can reach R4:
 +
 +<code>
 +[root@R3]~#ping 192.168.2.4
 +PING 192.168.2.4 (192.168.2.4): 56 data bytes
 +64 bytes from 192.168.2.4: icmp_seq=0 ttl=63 time=0.571 ms
 +64 bytes from 192.168.2.4: icmp_seq=1 ttl=63 time=0.795 ms
 +</code>
documentation/examples/simple_vrrp_lab.txt · Last modified: 2023/03/27 17:04 by olivier
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