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238 Avaya Application Solutions IP Telephony Deployment Guide
IP Telephony circuit pack security
Avaya circuit packs such as those in the G650 Media Gateways have a variety of security
measures that combine both voice and data security strategies in to a secure package.
The G650 use three different Ethernet interfaces to help isolate the traffic, and protect the
specific interfaces that must be secured:
● TN2312BP IP Server Interface (IPSI)
● TN2302AP and TN2602AP Media Processors
● TN799DP Control LAN (C-LAN)
TN2312BP IP Server Interface (IPSI)
Telnet
A telnet service is currently required on the IPSI for manual administration of the IPSI (IP
address, default gateway address, VLAN ID, QoS, and Ethernet settings). Telnet access to the
IPSI circuit pack is through
● Standard TCP port 23, but only for connections that are physically made through its
secondary services Ethernet port. When established, these Telnet accesses are directed
to a command menu that supports a variety of administration tasks.
● The OS-debugging shell over port 2312. This port is always available when accessed
through the local services port. Telnet access to this port on the control link is opened by a
Communication Manager command, and disabled immediately after a session has closed
the connection or after 5 minutes of inactivity (see also Control link
).