Which two sequences correctly describe the processing order of firewall filters on an EX Series switch? (Choose two.)

The correct answer is B. port filter > VLAN filter > router filter > transmit packet C. receive packet > port filter > VLAN filter > router filter. First, a packet is checked against the port firewall filter, if present. If the packet is permitted, it is then checked against the VLAN firewall filter, if present. If the packet is permitted, it is then checked against the router firewall filter, if present. The packet must…

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Options

Arouter filter > VLAN filter > port filter > transmit packet
Bport filter > VLAN filter > router filter > transmit packet
Creceive packet > port filter > VLAN filter > router filter
Dreceive packet > router filter > VLAN filter > port filter

How the community answered

(44 responses)

A
9% (4)
B
84% (37)
D
7% (3)

Explanation

First, a packet is checked against the port firewall filter, if present. If the packet is permitted, it is then checked against the VLAN firewall filter, if present. If the packet is permitted, it is then checked against the router firewall filter, if present. The packet must be permitted by the router firewall filter before it is processed. filter-ex-series-understanding.html

Topics

#firewall filters#filter processing order#EX Series#VLAN filter

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