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documentation:examples:multi-tenant_ha_pf_firewalls [2019/03/15 17:57] (current)
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 +====== Multi-tenant HA pf firewalls ​ ======
  
 +===== Network Diagram =====
 +
 +{{:​documentation:​examples:​multi-tenant-ha-pf-firewalls.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>​
 +# tools/​BSDRP-lab-bhyve.sh -i BSDRP.amd64/​BSDRP-1.80-full-amd64-serial.img.xz -n 5 -l 2
 +BSD Router Project (http://​bsdrp.net) - bhyve full-meshed lab script
 +Setting-up a virtual lab with 5 VM(s):
 +- Working directory: /tmp/BSDRP
 +- Each VM have 1 core(s) and 256M RAM
 +- Emulated NIC: virtio-net
 +- Switch mode: bridge + tap
 +- 3 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 VM 5
 +- vtnet4 connected to LAN number 1
 +- vtnet5 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 VM 5
 +- vtnet4 connected to LAN number 1
 +- vtnet5 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 VM 5
 +- vtnet4 connected to LAN number 1
 +- vtnet5 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 VM 5
 +- vtnet4 connected to LAN number 1
 +- vtnet5 connected to LAN number 2
 +VM 5 have the following NIC:
 +- vtnet0 connected to VM 1
 +- vtnet1 connected to VM 2
 +- vtnet2 connected to VM 3
 +- vtnet3 connected to VM 4
 +- vtnet4 connected to LAN number 1
 +- vtnet5 connected to LAN number 2
 +For connecting to VM'​serial console, you can use:
 +- VM 1 : cu -l /​dev/​nmdm-BSDRP.1B
 +- VM 2 : cu -l /​dev/​nmdm-BSDRP.2B
 +- VM 3 : cu -l /​dev/​nmdm-BSDRP.3B
 +- VM 4 : cu -l /​dev/​nmdm-BSDRP.4B
 +- VM 5 : cu -l /​dev/​nmdm-BSDRP.5B
 +</​code>​
 +
 +===== Configuring Routers =====
 +
 +==== With BSDRP'​s labconfig ====
 +
 +All these routers can be rapidly configured with [[https://​github.com/​ocochard/​BSDRP/​blob/​master/​BSDRP/​Files/​usr/​local/​sbin/​labconfig|BSDRP'​s labconfig tool]] (use it only on a lab, because it will replace your current running configuration):​
 +<​code>​
 +labconfig jailpf_vm[VM-NUMBER]
 +</​code>​
 +Or you can do it step-by-step like described.
 +==== Public server (VM3) ====
 +
 +<​code>​
 +sysrc hostname=VM3
 +hostname VM3
 +sysrc ifconfig_vtnet4="​inet 2.2.2.3/​24"​
 +sysrc -x gateway_enable
 +sysrc -x ipv6_gateway_enable
 +sysrc inetd_enable=YES
 +sed -i -e '​s/#​echo/​echo/​g'​ /​etc/​inetd.conf
 +service netif restart
 +service routing restart
 +service inetd start
 +config save
 +</​code>​
 +
 +==== Customer 1 workstation (VM4) ====
 +
 +<​code>​
 +sysrc hostname=VM4
 +hostname VM4
 +sysrc ifconfig_vtnet5="​up"​
 +sysrc vlans_vtnet5="​1"​
 +sysrc ifconfig_vtnet5_1="​inet 10.0.0.4/​24"​
 +sysrc defaultrouter="​10.0.0.254"​
 +sysrc -x gateway_enable
 +sysrc -x ipv6_gateway_enable
 +service netif restart
 +service routing restart
 +config save
 +</​code>​
 +
 +==== Customer 2 workstation (VM5) ====
 +
 +<​code>​
 +sysrc hostname=VM5
 +hostname VM5
 +sysrc ifconfig_vtnet5="​up"​
 +sysrc vlans_vtnet5="​2"​
 +sysrc ifconfig_vtnet5_2="​inet 10.0.0.5/​24"​
 +sysrc defaultrouter="​10.0.0.254"​
 +sysrc -x gateway_enable
 +sysrc -x ipv6_gateway_enable
 +service netif restart
 +service routing restart
 +config save
 +</​code>​
 +==== First Multi-tenant firewall (VM1) ====
 +
 +<​code>​
 +sysrc hostname=VM1
 +sysrc cloned_interfaces="​bridge0"​
 +sysrc ifconfig_bridge0="​addm vtnet4"​
 +sysrc ifconfig_vtnet4="​up"​
 +sysrc ifconfig_vtnet5="​up"​
 +sysrc vlans_vtnet5="​1 2"
 +sysrc ifconfig_vtnet5_1="​up"​
 +sysrc ifconfig_vtnet5_2="​up"​
 +sysrc kld_list+="​ carp pf pflog pfsync"​
 +
 +cat > /​etc/​devfs.rules <<'​EOF'​
 +[devfsrules_jailpf=4]
 +add include $devfsrules_hide_all
 +add include $devfsrules_unhide_basic
 +add include $devfsrules_unhide_login
 +add path '​pf'​ unhide
 +add path '​pflog*'​ unhide
 +add path '​bpf*'​ unhide
 +'​EOF'​
 +
 +hostname VM1
 +service devfs restart
 +service netif restart
 +service kld start
 +</​code>​
 +
 +<​note>​Jails needs to use different CARP vid on the public shared LAN for avoid carp MAC address conflict</​note>​
 +
 +=== Customer 1 Firewall1 (jail11) ===
 +
 +<​code>​
 +tenant -c -j jail11 -i bridge0,​vtnet5.1
 +
 +cat > /​etc/​jails/​jail11/​rc.conf <<EOF
 +hostname="​jail11"​
 +sshd_enable=YES
 +gateway_enable=YES
 +ipv6_gateway_enable=YES
 +ifconfig_vtnet5_1="​inet 10.0.0.252/​24"​
 +ifconfig_vtnet5_1_alias0="​inet 10.0.0.254/​32 vhid 1 advskew 100 pass customer1i"​
 +ifconfig_epair10b="​inet 2.2.2.11/​24"​
 +ifconfig_epair10b_alias0="​inet 2.2.2.1/32 vhid 2 advskew 100 pass customer1e"​
 +pf_enable=YES
 +pflog_enable=YES
 +pfsync_enable=YES
 +pfsync_syncdev=vtnet5.1
 +EOF
 +
 +echo "​net.inet.carp.preempt=1"​ >> /​etc/​jails/​jail11/​sysctl.conf
 +cat > /​etc/​jails/​jail11/​pf.conf <<EOF
 +nat on epair10b from vtnet5.1:​network to any -> 2.2.2.1
 +block
 +pass quick on vtnet5.1 proto pfsync keep state (no-sync)
 +pass quick on epair10b ​ proto carp keep state (no-sync)
 +pass quick on vtnet5.1 proto carp keep state (no-sync)
 +pass log from vtnet5.1:​network to epair10b:​network
 +pass log from self to any
 +EOF
 +
 +</​code>​
 +
 +=== Customer 2 Firewall1 (jail12) ===
 +
 +<​code>​
 +tenant -c -j jail12 -i bridge0,​vtnet5.2
 +
 +cat > /​etc/​jails/​jail12/​rc.conf <<EOF
 +hostname=jail12
 +sshd_enable=YES
 +gateway_enable=YES
 +ipv6_gateway_enable=YES
 +ifconfig_vtnet5_2="​inet 10.0.0.252/​24"​
 +ifconfig_vtnet5_2_alias0="​inet 10.0.0.254/​32 vhid 3 advskew 200 pass customer2i"​
 +ifconfig_epair20b="​inet 2.2.2.12/​24"​
 +ifconfig_epair20b_alias0="​inet 2.2.2.2/32 vhid 4 advskew 200 pass customer2e"​
 +pf_enable=YES
 +pflog_enable=YES
 +pfsync_enable=YES
 +pfsync_syncdev=vtnet5.2
 +EOF
 +
 +echo "​net.inet.carp.preempt=1"​ >> /​etc/​jails/​jail12/​sysctl.conf
 +cat > /​etc/​jails/​jail12/​pf.conf <<EOF
 +nat on epair20b from vtnet5.2:​network to any -> 2.2.2.2
 +block
 +pass quick on vtnet5.2 proto pfsync keep state (no-sync)
 +pass quick on epair20b ​ proto carp keep state (no-sync)
 +pass quick on vtnet5.2 proto carp keep state (no-sync)
 +pass log from vtnet5.2:​network to epair20b:​network
 +pass log from self to any
 +EOF
 +</​code>​
 +
 +=== Starting customer firewall ===
 +
 +<​code>​
 +service jail start
 +</​code>​
 +==== Second Multi-tenant firewall (VM2) ====
 +
 +<​code>​
 +sysrc hostname=VM2
 +sysrc cloned_interfaces="​bridge0"​
 +sysrc ifconfig_bridge0="​addm vtnet4"​
 +sysrc ifconfig_vtnet4="​up"​
 +sysrc ifconfig_vtnet5="​up"​
 +sysrc vlans_vtnet5="​1 2"
 +sysrc ifconfig_vtnet5_1="​up"​
 +sysrc ifconfig_vtnet5_2="​up"​
 +sysrc kld_list+="​ carp pf pflog pfsync"​
 +cat > /​etc/​devfs.rules <<'​EOF'​
 +[devfsrules_jailpf=4]
 +add include $devfsrules_hide_all
 +add include $devfsrules_unhide_basic
 +add include $devfsrules_unhide_login
 +add path '​pf'​ unhide
 +add path '​pflog*'​ unhide
 +add path '​bpf*'​ unhide
 +'​EOF'​
 +
 +hostname VM2
 +service devfs restart
 +service netif restart
 +service kld start
 +</​code>​
 +
 +<​note>​Jails needs to use different CARP vid on the public shared LAN for avoid carp MAC address conflict</​note>​
 +=== Customer 1 Firewall2 (jail21) ==
 +
 +<​code>​
 +tenant -c -j jail21 -i bridge0,​vtnet5.1
 +
 +cat > /​etc/​jails/​jail21/​rc.conf <<EOF
 +hostname=jail21
 +sshd_enable=YES
 +gateway_enable=YES
 +ipv6_gateway_enable=YES
 +ifconfig_vtnet5_1="​inet 10.0.0.253/​24"​
 +ifconfig_vtnet5_1_alias0="​inet 10.0.0.254/​32 vhid 1 advskew 200 pass customer1i"​
 +ifconfig_epair10b="​inet 2.2.2.21/​24"​
 +ifconfig_epair10b_alias0="​inet 2.2.2.1/32 vhid 2 advskew 200 pass customer1e"​
 +pf_enable=YES
 +pflog_enable=YES
 +pfsync_enable=YES
 +pfsync_syncdev=vtnet5.1
 +EOF
 +
 +echo "​net.inet.carp.preempt=1"​ >> /​etc/​jails/​jail21/​sysctl.conf
 +cat > /​etc/​jails/​jail21/​pf.conf <<EOF
 +nat on epair10b from vtnet5.1:​network to any -> 2.2.2.1
 +block
 +pass quick on vtnet5.1 proto pfsync keep state (no-sync)
 +pass quick on epair10b proto carp keep state (no-sync)
 +pass quick on vtnet5.1 proto carp keep state (no-sync)
 +pass log from vtnet5.1:​network to epair10b:​network
 +pass log from self to any
 +EOF
 +</​code>​
 +
 +=== Customer 2 Firewall2 (jail22) ===
 +
 +<​code>​
 +tenant -c -j jail22 -i bridge0,​vtnet5.2
 +
 +cat > /​etc/​jails/​jail22/​rc.conf <<EOF
 +hostname=jail22
 +sshd_enable=YES
 +gateway_enable=YES
 +ipv6_gateway_enable=YES
 +ifconfig_vtnet5_2="​inet 10.0.0.253/​24"​
 +ifconfig_vtnet5_2_alias0="​inet 10.0.0.254/​32 vhid 3 advskew 100 pass customer2i"​
 +ifconfig_epair20b="​inet 2.2.2.22/​24"​
 +ifconfig_epair20b_alias0="​inet 2.2.2.2/32 vhid 4 advskew 100 pass customer2e"​
 +pf_enable=YES
 +pflog_enable=YES
 +pfsync_enable=YES
 +pfsync_syncdev=vtnet5.2
 +EOF
 +
 +echo "​net.inet.carp.preempt=1"​ >> /​etc/​jails/​jail22/​sysctl.conf
 +cat > /​etc/​jails/​jail22/​pf.conf <<EOF
 +nat on epair20b from vtnet5.2:​network to any -> 2.2.2.2
 +block
 +pass quick on vtnet5.2 proto pfsync keep state (no-sync)
 +pass quick on epair20b ​ proto carp keep state (no-sync)
 +pass quick on vtnet5.2 ​ proto carp keep state (no-sync)
 +pass log from vtnet5.2:​network to epair20b:​network
 +pass log from self to any
 +EOF
 +</​code>​
 +
 +=== Starting customer firewall ===
 +
 +<​code>​
 +service jail start
 +</​code>​
 +===== Checking firewalls status =====
 +
 +==== carp state ====
 +=== Customer 1  ===
 +
 +Check that on VM1 jail11 is in carp master state:
 +
 +<​code>​
 +[root@VM1]~#​ jexec jail11 ifconfig | grep carp
 +        carp: MASTER vhid 2 advbase 1 advskew 100
 +        carp: MASTER vhid 1 advbase 1 advskew 100
 +</​code>​
 +
 +And on VM2 that jail21 in backup state:
 +
 +<​code>​
 +[root@VM2]~#​ jexec jail21 ifconfig | grep carp
 +        carp: BACKUP vhid 2 advbase 1 advskew 200
 +        carp: BACKUP vhid 1 advbase 1 advskew 200
 +</​code>​
 +=== Customer 2 ===
 +
 +Check on VM1 that jail12 is in carp backup state:
 +
 +<​code>​
 +[root@VM1]~#​ jexec jail12 ifconfig | grep carp
 +        carp: BACKUP vhid 2 advbase 1 advskew 200
 +        carp: BACKUP vhid 1 advbase 1 advskew 200
 +</​code>​
 +
 +And on VM2 that jail22 in master state:
 +
 +<​code>​
 +[root@VM2]~#​ jexec jail22 ifconfig | grep carp
 +        carp: MASTER vhid 2 advbase 1 advskew 100
 +        carp: MASTER vhid 1 advbase 1 advskew 100
 +</​code>​
 +
 +==== pfsync ====
 +=== Customer 1  ===
 +
 +Generate a flow from VM4 (customer 1 workstation) to VM3 (Internet server):
 +
 +<​code>​
 +[root@VM4]~#​ telnet 2.2.2.3 7
 +Trying 2.2.2.3...
 +Connected to 2.2.2.3.
 +Escape character is '​^]'​.
 +echo
 +echo
 +</​code>​
 +
 +And still connected, check state tables on jail11:
 +<​code>​
 +[root@VM1]~#​ jexec jail11 pfctl -ss
 +all carp 10.0.0.252 -> 224.0.0.18 ​      ​SINGLE:​NO_TRAFFIC
 +all carp 2.2.2.11 -> 224.0.0.18 ​      ​SINGLE:​NO_TRAFFIC
 +all carp 224.0.0.18 <- 2.2.2.22 ​      ​NO_TRAFFIC:​SINGLE
 +all tcp 2.2.2.3:7 <- 10.0.0.4:​22829 ​      ​ESTABLISHED:​ESTABLISHED
 +all tcp 2.2.2.1:​64414 (10.0.0.4:​22829) -> 2.2.2.3:​7 ​      ​ESTABLISHED:​ESTABLISHED
 +</​code>​
 +
 +And state table should be synced on jail21 too:
 +<​code>​
 +[root@VM2]~#​ jexec jail21 pfctl -ss
 +all tcp 2.2.2.3:7 <- 10.0.0.4:​22829 ​      ​ESTABLISHED:​ESTABLISHED
 +all tcp 2.2.2.1:​64414 (10.0.0.4:​22829) -> 2.2.2.3:​7 ​      ​ESTABLISHED:​ESTABLISHED
 +all carp 224.0.0.18 <- 10.0.0.252 ​      ​NO_TRAFFIC:​SINGLE
 +all carp 224.0.0.18 <- 2.2.2.11 ​      ​NO_TRAFFIC:​SINGLE
 +all carp 224.0.0.18 <- 2.2.2.22 ​      ​NO_TRAFFIC:​SINGLE
 +</​code>​
 +
 +=== Customer 2  ===
 +
 +Generate a flow from VM5 (customer 2 workstation) to VM3 (Internet server):
 +
 +<​code>​
 +[root@VM5]~#​ telnet 2.2.2.3 7
 +Trying 2.2.2.3...
 +Connected to 2.2.2.3.
 +Escape character is '​^]'​.
 +echo
 +echo
 +</​code>​
 +
 +And still connected, check state tables on VM2/jail22:
 +<​code>​
 +[root@VM2]~#​ jexec jail22 pfctl -ss
 +all carp 224.0.0.18 <- 2.2.2.11 ​      ​NO_TRAFFIC:​SINGLE
 +all carp 10.0.0.253 -> 224.0.0.18 ​      ​SINGLE:​NO_TRAFFIC
 +all carp 2.2.2.22 -> 224.0.0.18 ​      ​SINGLE:​NO_TRAFFIC
 +all tcp 2.2.2.3:7 <- 10.0.0.5:​48257 ​      ​ESTABLISHED:​ESTABLISHED
 +all tcp 2.2.2.2:​55134 (10.0.0.5:​48257) -> 2.2.2.3:​7 ​      ​ESTABLISHED:​ESTABLISHED
 +</​code>​
 +
 +And state table should be synced on VM1/jail12 too:
 +<​code>​
 +[root@VM1]~#​ jexec jail12 pfctl -ss
 +all carp 224.0.0.18 <- 2.2.2.11 ​      ​NO_TRAFFIC:​SINGLE
 +all carp 224.0.0.18 <- 10.0.0.253 ​      ​NO_TRAFFIC:​SINGLE
 +all carp 224.0.0.18 <- 2.2.2.22 ​      ​NO_TRAFFIC:​SINGLE
 +all pfsync 224.0.0.240 <- 10.0.0.253 ​      ​NO_TRAFFIC:​SINGLE
 +all tcp 2.2.2.3:7 <- 10.0.0.5:​29481 ​      ​ESTABLISHED:​ESTABLISHED
 +all tcp 2.2.2.2:​58530 (10.0.0.5:​29481) -> 2.2.2.3:​7 ​      ​ESTABLISHED:​ESTABLISHED
 +</​code>​
 +
 +
 +==== pflog ====
 +=== Customer 1  ===
 +
 +Check log file on customer 1 master firewall (after default 60 seconds timer flush):
 +<​code>​
 +[root@jail11]~#​ tcpdump -n -e -ttt -i pflog0
 +tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
 +listening on pflog0, link-type PFLOG (OpenBSD pflog file), capture size 262144 bytes
 + ​00:​00:​00.000000 rule 4/0(match): pass in on vtnet5.1: 10.0.0.4 > 2.2.2.3: ICMP echo request, id 59656, seq 0, length 64
 + ​00:​00:​00.000016 rule 7/0(match): pass out on epair1b: 2.2.2.1 > 2.2.2.3: ICMP echo request, id 59599, seq 0, length 64
 + ​00:​00:​03.602014 rule 4/0(match): pass in on vtnet5.1: 10.0.0.4.40843 > 2.2.2.3.7: Flags [S], seq 3135529453, win 65535, options [mss 1460,​nop,​wscale 6,sackOK,TS val 24986171 ecr 0], length 0
 + ​00:​00:​00.000009 rule 7/0(match): pass out on epair1b: 2.2.2.1.53035 > 2.2.2.3.7: Flags [S], seq 3135529453, win 65535, options [mss 1460,​nop,​wscale 6,sackOK,TS val 24986171 ecr 0], length 0
 +^C
 +4 packets captured
 +4 packets received by filter
 +0 packets dropped by kernel
 +</​code>​
 +
 +=== Customer 2 ===
 +
 +<​code>​
 +[root@jail22]~#​ tcpdump -n -e -ttt -i pflog0
 +tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
 +listening on pflog0, link-type PFLOG (OpenBSD pflog file), capture size 262144 bytes
 + ​00:​00:​00.000000 rule 4/0(match): pass in on vtnet5.2: 10.0.0.5 > 2.2.2.3: ICMP echo request, id 64776, seq 0, length 64
 + ​00:​00:​00.000008 rule 7/0(match): pass out on epair2b: 2.2.2.2 > 2.2.2.3: ICMP echo request, id 11316, seq 0, length 64
 + ​00:​00:​02.654863 rule 4/0(match): pass in on vtnet5.2: 10.0.0.5.20739 > 2.2.2.3.7: Flags [S], seq 2458333239, win 65535, options [mss 1460,​nop,​wscale 6,sackOK,TS val 24913037 ecr 0], length 0
 + ​00:​00:​00.000008 rule 7/0(match): pass out on epair2b: 2.2.2.2.56545 > 2.2.2.3.7: Flags [S], seq 2458333239, win 65535, options [mss 1460,​nop,​wscale 6,sackOK,TS val 24913037 ecr 0], length 0
 +^C
 +4 packets captured
 +4 packets received by filter
 +0 packets dropped by kernel
 +</​code>​
 +
 +
 +==== pflogd ====
 +=== Customer 1  ===
 +
 +Check log file on customer 1 master firewall jail11 (after default 60 seconds timer flush):
 +<​code>​
 +[root@jail11]~#​ tcpdump -r /​var/​log/​pflog
 +reading from file /​var/​log/​pflog,​ link-type PFLOG (OpenBSD pflog file)
 +</​code>​
 +
 +Nothing??
 +
 +<​code>​
 +[root@jail11]~#​ service pflogd status
 +pflogd does not exist in /etc/rc.d or the local startup
 +directories (/​usr/​local/​etc/​rc.d),​ or is not executable
 +[root@jail11]~#​ service pflog status
 +pflog is running as pid 2267.
 +</​code>​
 +
 +=== Customer 2 ===
 +
 +Check log file on customer 2 master firewall jail22 (after default 60 seconds timer flush):
 +
 +<​code>​
 +[root@jail22]~#​ tcpdump -r /​var/​log/​pflog
 +reading from file /​var/​log/​pflog,​ link-type PFLOG (OpenBSD pflog file)
 +[root@jail22]~#​ service pflog status
 +pflog is running as pid 2261.
 +</​code>​
 +
 +<​note>​pflogd seems to have a problem running inside a jail</​note>​
 +
 +Trying to stop pflogd for forcing a flush, but can't stop it:
 +<​code>​
 +[root@jail11]~#​ ps -auxww | grep pflogd
 +_pflogd 2269 49.6  1.3 12304 2872  -  RJ   ​09:​13 ​  ​10:​06.89 pflogd: [running] -s 116 -i pflog0 -f /​var/​log/​pflog (pflogd)
 +root    2267  0.0  1.3 12236 2868  -  IsJ  09:13    0:00.00 pflogd: [priv] (pflogd)
 +root    3020  0.0  0.1   ​420 ​ 300  0  R+J  09:33    0:00.00 grep pflogd
 +[root@jail11]~#​ service pflog stop
 +Stopping pflog.
 +Waiting for PIDS: 2267
 +load: 2.00  cmd: pwait 3032 [kqread] 28.06r 0.00u 0.00s 0% 1488k
 +</​code>​
documentation/examples/multi-tenant_ha_pf_firewalls.txt ยท Last modified: 2019/03/15 17:57 (external edit)