Stateful Firewall on UDP Packet

asked 2020-03-24 16:13:38 +0000


I need explanation on UDP traffic passing state full firewall compared to TCP.

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Is this a homework question? If so what have you found out so far?

grahamb gravatar imagegrahamb ( 2020-03-24 16:15:34 +0000 )edit

As I know, firewall will keep session on 5 tuple of TCP packet and firewall policy should allow from where it is initiated the connection and return traffic will be allow without bidirectional policy.

My question, how about UDP packet handle by state full firewall ? Or need bidirectional policy ?

noorhafiez gravatar imagenoorhafiez ( 2020-03-24 16:21:44 +0000 )edit

"It depends" on the firewall. There is not a generic answer for UDP.

Chuckc gravatar imageChuckc ( 2020-03-24 23:46:11 +0000 )edit