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Which are the TCP/UDP port numbers of h323 protocol?

admin_2
Level 3
Level 3

‎07-02-2002 11:17 AM - edited ‎03-12-2019 07:36 PM

What are tcp/udp port numbers of the h323 protocol to be measure for netflow application.

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‎07-02-2002 11:17 AM

H.225 uses TCP 1718, 1719, 1720.

H.245 uses TCP 11000 to 65535.

H.323 uses UDP 16384-32767.

An inside caller initiates a TCP connection to the client on the outside on port 1720.

The two devices negotiate for a second TCP session, During the second TCP session, the clients negotiate on UDP ports.

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