My internet connection will be provided by 4 different WANs (each 250 Mbit down, 100 Mbit up), which should be load-balanced to one 1 Gbit connection (full duplex, most likely ethernet (should be sufficient?))
All of our network-traffic should be tunneled through a VPN-connection.
(It's possible that in the future the speed of a single WAN could be increased even further or that the number of WANs increases. This is not our main attraction, but more a side-note.)
- My question is which hardware setting would be recommended here?
- Is it possible to first load balance all our WANs to one line and
afterwards let another router handler the VPN-connection? - Would it still work that this single TCP-connection (the VPN-connection) is
load-balanced through all WANs, what is the requirement for that to
be the case?
We thought that with load-balancing a single TCP connection will always be sent over the same WAN, but probably that's not the case?
Best Answer
Simply put: that won't work. You can't terminate a single VPN connection on multiple public IP addresses.
But there's an alternative - create a VPN link for each of the WAN connections and load balance between those. Most business-grade routers should be able to do that.