Hot!Fortigate - ARP-Issues after Upgrade 5.6.6 to 5.6.9 - Unicast flooded to all switch-ports

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Re: Fortigate - ARP-Issues after Upgrade 5.6.6 to 5.6.9 - Unicast flooded to all switch-po 2019/10/02 04:43:52 (permalink)
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Don't you use redundant interfaces??

 
I'm afraid,  no! It's always been Aggregate and redundant is not even an option in mt FGT. Mabe the bigger chassis supports this, but I have seen redundant type in years maybe decades, but it truly sounds like mac-addr layer2 issues.
 
If you're seeing ALL layer3 address, I would review the switch ports connected to port3 and port4, the switch CONTROLS forwarding not your layey3 device. I would also check that nobody setup a mirror or span port
 
Ken Felix

PCNSE 
NSE 
StrongSwan  
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