Layer 2 Single IP with Multiple vlan’s and rewriting vlan tags
As we can see in below diagram we have used same IP subnet that has span's in multiple vlan’s.Using Palo alto L2 interface mode we can secure traffic between Vlan’s.
Diagram
Interfaces config
Zone Config.
Vlan Config.
Security Policy
In below security policy we can see that ping application is allowed to talk from vlan 100 to vlan 200 and vlan 300.
eth0/0 is trunk is trunk interface.
eth0/1 , eth0/2 and eth0/3 is access ports.
Verification
Ping from PC1 (192.168.10.100) To PC2 (192.168.20.100)
Ping from PC2 (192.168.20.100) To PC1 192.168.10.100 failing
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