Firewall input rule on lo0 to discard packets sent to broadcast fixes the problem, looks like the IRB is definitely forwarding broadcast packets. I can also confirm this is happening regardless of the vlan and that this does not affect the EX2300-48P running 15.1X53-D55. Currently the switch in question is running 15.1X53-D55 but can confirm the problem is also present on D56. No service contract on the switch, working with the vendor to get it on there so that I can file a JTAC case.
↧