Hi,
I have setup like below wan is physical interface and it has ip address and it has secondary address 10.1.1.1/24.
from the firewall arp shows the mac address of point to point ip's (10.1.1.2) is 1234.1234.5678 .
When I checked the mac address of 1234.1234.5678 switch says it learnt from port fa0/21 .
And mac address 1234.1234.1234 learned from port fa0/20 ,
There is only one physical connectivity for bot IP , how it is possible
Thanks
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well,
switch say it learned 1234 1234 1234 from port fa0/20 => this is correct. this is right were the switch "sees" the firewall interface in your drawing.
Firewall sees the mac of the switch too , so everything shoud work fine.
Where the switch sees it's own mac depends on the hardware. Maybe it has one for all ports and just states the trunk for some reason. I wouldn't care on that so much...
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