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General Discussion / Multi wan load balancing at same tier issue
« on: August 08, 2020, 02:53:12 am »
I am having a weird problem with multi wan which I cannot figure out the solution. I have gone to the extent of a wipe and reload of my fw software and starting the config 1-by-1 only to still have the problem. Now asking for help.
When I put the LAN fw rule for outbound traffic into load balance group where both WANs are in same Tier1 - I experience intermittent traffic failures.
I have multi wan setup per the guide.
WAN1 = cable modem w/ dhcp public IP
WAN2 = opnsense is NAT IP behind DSL "router" which has public IP
After several days I finally made some discovery after looking into the WAN2 DSL router logs - it is denying traffic for reason of packets "invalid src IP address" of WAN1.
Traffic shouldnt be coming in an interface that did not originate from, correct...??
When I have either WAN configured as Tier1 and the other as Tier2, I have zero issues like this.
Only when they are both at the same Tier does it occur. Please help
When I put the LAN fw rule for outbound traffic into load balance group where both WANs are in same Tier1 - I experience intermittent traffic failures.
I have multi wan setup per the guide.
WAN1 = cable modem w/ dhcp public IP
WAN2 = opnsense is NAT IP behind DSL "router" which has public IP
After several days I finally made some discovery after looking into the WAN2 DSL router logs - it is denying traffic for reason of packets "invalid src IP address" of WAN1.
Traffic shouldnt be coming in an interface that did not originate from, correct...??
When I have either WAN configured as Tier1 and the other as Tier2, I have zero issues like this.
Only when they are both at the same Tier does it occur. Please help