Currently running an ADVPN (BGP) with a couple dozen spokes. All the spokes are a single WAN connection. Now one of the sites wants to add a redundant WAN connection. There are two hubs at the 'hub' so if ISP 1 at the hub goes down, the spokes failover to Hub ISP 2. On the spokes, the backup hub monitors the first hub. How can I add a 3rd advpn connection from the spoke which would use spoke WAN2 if spoke WAN1 fails?
edit "ADVPN-PRIMARY"
set interface "wan1"
set peertype any
set net-device enable
set proposal aes128-sha256 aes256-sha256 aes128-sha1 aes256-sha1
set add-route disable
set dpd on-idle
set wizard-type spoke-fortigate-auto-discovery
set auto-discovery-receiver enable
set auto-discovery-shortcuts dependent
set remote-gw <ISP1 at HUB>
next
edit "ADVPN-BACKUP"
set interface "wan1"
set peertype any
set net-device enable
set proposal aes128-sha256 aes256-sha256 aes128-sha1 aes256-sha1
set dpd on-idle
set wizard-type spoke-fortigate-auto-discovery
set auto-discovery-receiver enable
set auto-discovery-shortcuts dependent
set remote-gw <ISP2 at HUB>
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I just assumed you were using SD-WAN since the tunnels were named ADVPN. If you are just using routes and the fact the tunnel is up/down to control the traffic, you don't have to then, but SDWAN will give you a lot more control and monitoring capabilities.
You can create the two new tunnels I mentioned but use the option "set monitor <primary tunnel name>". This will keep the tunnel down unless the primary tunnel specified goes down then it will try to build the tunnel on the secondary interface. Its a slower process then if the tunnel was always up, but should accomplish the goal.
You will need to create two more tunnels like the one you have that use:
set interface "wan2"
(or what ever the second wan port is). Then your policies will have four vpn overlay tunnels for SD-WAN rules.
Is SDWAN required on the spoke for this setup? I also don't want the backup connection to be in use unless the primary fails.
I just assumed you were using SD-WAN since the tunnels were named ADVPN. If you are just using routes and the fact the tunnel is up/down to control the traffic, you don't have to then, but SDWAN will give you a lot more control and monitoring capabilities.
You can create the two new tunnels I mentioned but use the option "set monitor <primary tunnel name>". This will keep the tunnel down unless the primary tunnel specified goes down then it will try to build the tunnel on the secondary interface. Its a slower process then if the tunnel was always up, but should accomplish the goal.
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