WAN Failover

[sven_jacobs]

Hey all

I have 2 WAN Links.

WAN1 main internet link (fix ip)

WAN2 secundary internet link (dhcp)

The idea is that some traffic ( subnets) will be passed to WAN2 and the rest to WAN1 

I configured link monitor:

config system link-monitor

 edit "WAN1"

 set srcintf "wan1"

 set server "8.8.8.8"

 set update-cascade-interface disable

 set update-static-route disable

 next

end

Status link

Link Monitor: WAN1, Status: alive, Server num(1), Create time: Thu Dec 17 13:04:34 2020

Source interface: wan1 (5)

Interval: 1

 Peer: 8.8.8.8(8.8.8.8)

 Source IP( )

 Route: ->8.8.8.8/32, gwy( )

 protocol: ping, state: alive

 Latency(Min/Max/Avg): 0.000/30.000/15.000 ms

 Jitter(Min/Max/Avg): 0.000/20.000/7.000

 Packet lost: 0.000%

 Number of out-of-sequence packets: 0

 Fail Times(0/5)

 Packet sent: 3204, received: 3204, Sequence(sent/rcvd/exp): 3205/3205/3206

I have an issue when I activate the second interface WAN2 i have a failover to that link?

All my VPN connections breake ..

Strange what am i do wrong.

[sw2090]

hm I never used that. We use SD-WAN with up to 5 WANs and failover works fine with that.

Just add a WAN to SD-WAN and add it to some health check (or create a new health check) to have it monitored and it will automatically drop out of sd-wan temporarily if it is detected unavailable.

SD-WAN will then use the other WANs accoarding to the configured lb algorithm until it comes back.