Refer to the exhibit. Which will be the egress interface if the traffic's ingress interface is ethernet1/7 sourcing from 192.168.111.3 and to the destination 10.46.41.113?
No Routing or Switching performed by virtual wire interfaces. New updated document: https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-networking-admin/configure-interfaces/virtual-wire-interfaces
I believe the correct answer is Ethernet1/3, and here’s why:
While Virtual Wire (vWire) typically operates at Layer 2 and bridges traffic transparently (e.g., ethernet1/7 to ethernet1/5), the exhibit includes a routing table (show routing fib). This suggests the firewall is configured for Layer 3 routing in this scenario.
1. The routing table explicitly shows a default route (0.0.0.0/0) with a nexthop of 10.46.40.1 via ethernet1/3.
2. The mention of the source IP (192.168.111.3) further supports that routing decisions are being applied, which is not typical in a pure vWire setup.
3. This appears to be a hybrid configuration, where routing overrides the default vWire behavior for external traffic.
The traffic ingressing on ethernet1/7 with a destination of 10.46.41.113 will egress via ethernet1/3, based on the routing table. This is consistent with Layer 3 routing logic.
When an interface is configured as virtual wire, the routing table is not checked by the FW. If it enters one interface, it has to exit the other interface of the virtual wire, there is no exception.
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