ken @
cameron .
East .
Sun .
COM (Ken Harford - Network Architecture Consultant) writes
:
#
# Hi All Again,
#
# I need to clarify a question that I raised about Cisco routers. I asked
# if Cisco products did port filtering, however I failed focus my question on
# the particular filtering I was inquiring about "inbound source port filtering".
"Inbound filtering" and "source port filtering" are really two
separate things. The current Cisco code does inbound filtering (i.e.,
it lets you filter packets on their way into the router, as well as on
their way out), but does NOT do source port filtering (i.e., it only
lets you look at TCP/UDP destination port, not source port, in making
filtering decisions).
-Brent
--
Brent Chapman | Great Circle Associates | Call or email for info about
Brent @
GreatCircle .
COM | 1057 West Dana Street | upcoming Internet Security
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