> Firewall-1 is a packet filter. A smart filter, but never-the-less a filter.
> Application gateways are more secure.
This is partly a religious issue. Depending on the nature of your
network, and needs, and services, and human resources, and finances,
one option may be more secure than another. You need to do a detailed
evaluation of your environment and match that to the available
offerings, based on as much knowledge about those offerings as you can
get.
Simply stating that "Application gateways are more secure." is
a falsehood.
-David
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