Public IM systems use the following ports by default:
AOL: TCP - 5190,4443
MSN: TCP - 1503,1863,6891 *and* UDP - 13324,13325
YAHOO: TCP - 5010
ICQ: TCP - 5190,3574,7320 *and* UDP - 4000,4001
Some traffic may also go through port 80.
Some 411 about Instant Messaging
Started by
StankDawg
, Dec 11 2002 07:41 PM
2 replies to this topic
#1
StankDawg
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same old Dawg, no new tricks
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Posted 11 December 2002 - 07:41 PM
a little 411 extracted from Network magazine...
Some traffic may also go through port 80.
Some traffic may also go through port 80.
#2
latency
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Mack Daddy 31337
Posted 11 December 2002 - 09:00 PM
nice - thanks stank
ethereal shows AIM conversations being transmitted clear text - easy to filter down too as the protocol listed is "AIM"
ethereal shows AIM conversations being transmitted clear text - easy to filter down too as the protocol listed is "AIM"
#3
nick84
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Posted 12 December 2002 - 03:46 AM
I think nearly all IM programs transmit in the clear. - Personally I know that MSN does, except for authentication.nice - thanks stank
ethereal shows AIM conversations being transmitted clear text - easy to filter down too as the protocol listed is "AIM"
And I heard that some IM software (not sure which one) will use port 80 is fthe normal ports it uses are blocked by firewalls etc. - Corperate IT managers who want to block IM are finding this a problem.
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