SD-WAN

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SDWAN Lab

This section guides you to build your own SDWAN labs on a single Host Server like XenServer, VMWare, etc.

Running VM

  • Download CB VWAN 8.1 VPX XVA image file from download.citrix.com
  • You need atleast 4 GB RAM for a single VPX.
  • Configuration is done only on the Master Control Node (MCN).

Managing VM

  • Once VPX is Up and running, login into VPX console.
  • Type command 'management_ip', press enter.
  • Enter command 'set interface 10.107.88.84 255.255.255.224 10.107.88.65'
  • Now enter command 'apply'

Enabling VWAN

  • Login into WebUI
  • Upload & apply License
  • Now Enable MCN
CB-VW GUI > Configuration > Appliance Settings > Administrator Interface > Miscellaneous tab > Switch Console
  • Click on “Switch to Client Console” to enable MCN mode.

Configuring

  • Sites
Add Sites > Basic Settings > Interface Groups
  • Connections
  • Provisioning = Bandwidth settings

Deploying

  • Save Config
  • Export Config & select Change Management Inbox
  • In the Change management page, Upload the Virtual Upgrade firmware file (.tar.gz)
  • Select the exported Config file and select Verify.
  • Click next once the verification is successful.
  • Click Stage Appliances. Wait for it to complete.
  • Click Next & Select Activate.
  • Click Activate Staged now to activate the software on this CB.
  • Wait for 120s.
  • CLick Done. Enable VWAN on this page:
 Configuration > Virtual WAN > Enable/Disable/Purge Flows

Topology

  • WanEM Ip address is:
http://10.107.88.88/WANem/

Initial Setup

Vwan basic.png

Adding Routers

Basic VWAN Lab2.png

Inline Mode with Version flexibility

Vwan.png

Mixed Mode

Mixed Mode.png

Mixed Mode with OSPF

   Ambox notice.png     This deployment will cause Routing loop, SDWAN needs routing just for advertising routes on local LAN, not on the ISP side
Vwan ospf.png
SLAX Router Internet
  • Zebra Config:
log file /var/log/zebra.log
!
interface eth0
 ip address 10.107.88.69/27
!
interface eth1
 ip address 1.1.1.1/24
!
interface eth2
 ip address 4.4.4.1/24
!
ip route 6.6.6.0/24 eth2
ip route 7.7.7.0/24 eth2
!
ip forwarding
  • OSPFD Config:
interface eth0
!
interface eth1
!
interface eth2
!
interface lo
!
router ospf
 passive-interface eth0
 network 1.1.1.0/24 area 0.0.0.0
 network 4.4.4.0/24 area 0.0.0.0
  • WanEM Config:
#Start WanEM
/sbin/tc  qdisc add dev eth1 root handle 1: netem  delay 50ms 20ms 80% reorder 2% 25% loss 2% 45% duplicate 1% 25% corrupt 2%
/sbin/tc  qdisc add dev eth1 parent 1:1 handle 10: htb default 1 r2q 10
/sbin/tc  class add dev eth1 parent 10: classid 0:1 htb rate 512kbit ceil 512kbit
/sbin/tc  qdisc add dev eth2 root handle 1: netem  delay 50ms 20ms 80% reorder 2% 25% loss 1% 45% duplicate 1% 25% corrupt 2%
/sbin/tc  qdisc add dev eth2 parent 1:1 handle 10: htb default 1 r2q 10
/sbin/tc  class add dev eth2 parent 10: classid 0:1 htb rate 512kbit ceil 512kbit
  • Routing Table:
root@slax:~# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.107.88.64    *               255.255.255.224 U     0      0        0 eth0
7.7.7.0         *               255.255.255.0   U     0      0        0 eth2
2.2.2.0         1.1.1.2         255.255.255.0   UG    20     0        0 eth1
5.5.5.0         informs.bar2.mi 255.255.255.0   UG    20     0        0 eth2
6.6.6.0         *               255.255.255.0   U     0      0        0 eth2
1.1.1.0         *               255.255.255.0   U     0      0        0 eth1
3.3.3.0         informs.bar2.mi 255.255.255.0   UG    20     0        0 eth2
4.4.4.0         *               255.255.255.0   U     0      0        0 eth2
loopback        *               255.0.0.0       U     0      0        0 lo
default         10.107.88.65    0.0.0.0         UG    0      0        0 eth0

root@slax:~# ip route
10.107.88.64/27 dev eth0  proto kernel  scope link  src 10.107.88.69
7.7.7.0/24 dev eth2  proto zebra
2.2.2.0/24 via 1.1.1.2 dev eth1  proto zebra  metric 20
5.5.5.0/24 via 4.4.4.2 dev eth2  proto zebra  metric 20
6.6.6.0/24 dev eth2  proto zebra
1.1.1.0/24 dev eth1  proto kernel  scope link  src 1.1.1.1
3.3.3.0/24 via 4.4.4.2 dev eth2  proto zebra  metric 20
4.4.4.0/24 dev eth2  proto kernel  scope link  src 4.4.4.1
127.0.0.0/8 dev lo  scope link
default via 10.107.88.65 dev eth0
SLAX Router MPLS
  • Zebra Config:
log file /var/log/zebra.log
!
interface eth0
!
interface eth1
 ip address 2.2.2.1/24
!
interface eth2
 ip address 3.3.3.1/24
!
ip route 6.6.6.0/24 eth2
ip route 7.7.7.0/24 eth2
!
ip forwarding
  • OSPFD Config:
interface eth0
!
interface eth1
!
interface eth2
!
interface lo
!
router ospf
 network 2.2.2.0/24 area 0.0.0.1
 network 3.3.3.0/24 area 0.0.0.1
  • WanEM Config:
#Start Wanem
/sbin/tc  qdisc add dev eth1 root handle 1: netem  delay 20ms 4ms 25% reorder 1% 25% loss 1% 25% duplicate 1% 25% corrupt 1%
/sbin/tc  qdisc add dev eth1 parent 1:1 handle 10: htb default 1 r2q 10
/sbin/tc  class add dev eth1 parent 10: classid 0:1 htb rate 2097kbit ceil 2097kbit
/sbin/tc  qdisc add dev eth2 root handle 1: netem  delay 20ms 4ms 25% reorder 1% 25% loss 1% 25% duplicate 1% 25% corrupt 1%
/sbin/tc  qdisc add dev eth2 parent 1:1 handle 10: htb default 1 r2q 10
/sbin/tc  class add dev eth2 parent 10: classid 0:1 htb rate 2097kbit ceil 2097kbit
  • Routing Table:
root@10:~# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.107.88.64    *               255.255.255.224 U     0      0        0 eth0
7.7.7.0         *               255.255.255.0   U     0      0        0 eth2
5.5.5.0         3.3.3.2         255.255.255.0   UG    20     0        0 eth2
2.2.2.0         *               255.255.255.0   U     0      0        0 eth1
1.1.1.0         2.2.2.2         255.255.255.0   UG    20     0        0 eth1
6.6.6.0         *               255.255.255.0   U     0      0        0 eth2
4.4.4.0         3.3.3.2         255.255.255.0   UG    20     0        0 eth2
3.3.3.0         *               255.255.255.0   U     0      0        0 eth2
loopback        *               255.0.0.0       U     0      0        0 lo
default         10.107.88.65    0.0.0.0         UG    0      0        0 eth0

root@10:~# ip route
10.107.88.64/27 dev eth0  proto kernel  scope link  src 10.107.88.70
7.7.7.0/24 dev eth2  proto zebra
5.5.5.0/24 via 3.3.3.2 dev eth2  proto zebra  metric 20
2.2.2.0/24 dev eth1  proto kernel  scope link  src 2.2.2.1
1.1.1.0/24 via 2.2.2.2 dev eth1  proto zebra  metric 20
6.6.6.0/24 dev eth2  proto zebra
4.4.4.0/24 via 3.3.3.2 dev eth2  proto zebra  metric 20
3.3.3.0/24 dev eth2  proto kernel  scope link  src 3.3.3.1
127.0.0.0/8 dev lo  scope link
default via 10.107.88.65 dev eth0
GNS3 Router Config
interface Ethernet0/0
 no ip address
 full-duplex
!
interface Ethernet0/0.10
 encapsulation dot1Q 10
 ip address 6.6.6.1 255.255.255.0
 ip policy route-map traf1
!
interface Ethernet0/0.20
 encapsulation dot1Q 20
 ip address 7.7.7.1 255.255.255.0
 ip policy route-map traf2
!
interface Ethernet0/1
 ip address 5.5.5.1 255.255.255.0
 ip policy route-map traf3
 full-duplex
!
interface Ethernet0/2
 ip address 4.4.4.2 255.255.255.0
 ip policy route-map traf4
 full-duplex
!
interface Ethernet0/3
 ip address 3.3.3.2 255.255.255.0
 full-duplex
!
router ospf 1
 log-adjacency-changes
 redistribute connected subnets
 network 3.3.3.0 0.0.0.255 area 1
 network 4.4.4.0 0.0.0.255 area 0
!
ip route 0.0.0.0 0.0.0.0 4.4.4.1
!
access-list 101 permit ip 6.6.6.0 0.0.0.255 any
access-list 102 permit ip 7.7.7.0 0.0.0.255 any
access-list 103 permit ip 5.5.5.0 0.0.0.255 any
access-list 104 permit ip any 5.5.5.0 0.0.0.255
no cdp log mismatch duplex
!
route-map traf1 permit 10
 match ip address 101
 set ip next-hop 4.4.4.1
!
route-map traf3 permit 10
 match ip address 103
 set ip next-hop 6.6.6.2
!
route-map traf2 permit 10
 match ip address 102
 set ip next-hop 3.3.3.1
!
route-map traf4 permit 10
 match ip address 104
 set ip next-hop 6.6.6.2
  • Routing Table:
R1#show ip route
Gateway of last resort is 4.4.4.1 to network 0.0.0.0

     1.0.0.0/24 is subnetted, 1 subnets
O       1.1.1.0 [110/20] via 4.4.4.1, 04:48:43, Ethernet0/2
     2.0.0.0/24 is subnetted, 1 subnets
O       2.2.2.0 [110/20] via 3.3.3.1, 04:45:37, Ethernet0/3
     3.0.0.0/24 is subnetted, 1 subnets
C       3.3.3.0 is directly connected, Ethernet0/3
     4.0.0.0/24 is subnetted, 1 subnets
C       4.4.4.0 is directly connected, Ethernet0/2
     5.0.0.0/24 is subnetted, 1 subnets
C       5.5.5.0 is directly connected, Ethernet0/1
     6.0.0.0/24 is subnetted, 1 subnets
C       6.6.6.0 is directly connected, Ethernet0/0.10
     7.0.0.0/24 is subnetted, 1 subnets
C       7.7.7.0 is directly connected, Ethernet0/0.20
S*   0.0.0.0/0 [1/0] via 4.4.4.1

Dynamic Routing BGP

   Ambox notice.png     This deployment will cause Routing loop, SDWAN needs routing just for advertising routes on local LAN, not on the ISP side
Vwan-ospf-bgp.png

Routing corrected and IPSEC

Mixed Mode Ospf routing.png

SDWAN Center and W2W forwarding

Sdwan center w2w fwd.png




References





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