Zone protection on sub interfaces

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Zone protection on sub interfaces

L4 Transporter

Apologies if this is going over old ground but I have an issue with zone protection and am stumped trying to work out what it is.


I have configured and applied the zone protection profile to a layer3 sub-interface, when I test against it with crafted packets the majority of the configured protections flag using the following command

show zone-protection zone xxxxx 

However some do not, one of the ones that I would have thought would have been fairly easy to spot would be the anti -spoofing, the packet capture from the firewall shows that the packet does indeed have a spoofed address (that is one that is not reachable from the zone) but the profile is not dropping the traffic.

Any help with this would be greatly appreciated as I am pulling what hair I have left out!


Thank you all in advance,

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