Answer Posted / devroy
An ACL is a basic level of stateless packet filtering. If
that meets your (low) security requirements, then that's
fine.
A firewall generally includes stateful packet inspection.
This will provide a higher level of security than an ACL.
That said, you need to look at the specific
implementations, as what one vendor calls an ACL another
may call a firewall.
Look at
http://www.eetasia.com/ARTICLES/2002APR/2002APR08_ICD_NTEK_R
FD_CT_MSD_TAC.PDF
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