Cisco Cisco TelePresence MX700 Manuale Di Manutenzione

D14850.07 MX Series Administrator Guide TC6.3, OCTOBER 2013.

Cisco TelePresence MX Series

Administrator Guide

H323 Profile [1..1] PortAllocation

The H.323 Port Allocation setting affects the H.245 port numbers used for H.323 call signalling.

Requires user role: ADMIN
Value space: <Dynamic/Static>

Dynamic: The system will allocate which ports to use when opening a TCP connection. The

reason for doing this is to avoid using the same ports for subsequent calls, as some firewalls

consider this as a sign of attack. When Dynamic is selected, the H.323 ports used are from

11000 to 20999. Once 20999 is reached they restart again at 11000. For RTP and RTCP

media data, the system is using UDP ports in the range 2326 to 2487. Each media channel

is using two adjacent ports, ie 2330 and 2331 for RTP and RTCP respectively. The ports are

automatically selected by the system within the given range. Firewall administrators should

not try to deduce which ports are used when, as the allocation schema within the mentioned

range may change without any further notice.
Static: When set to Static the ports are given within a static predefined range [5555-6555].

Example:

H323 Profile 1 PortAllocation: Dynamic

Contents

Introduction

System settings

Setting passwords

Appendices

Web interface

System settings