12378
(configurable)
Alternate
Gatekeeper
protocol
Synchronizatio
n and
negotiation
between
Alternate
Gatekeepers
Both No Alternate
Gatekeeper
functionality
Alternate Gatekeeper
Table 1-6 ECS incoming port connections
Port Range Protocol Functionality Direction Result of
Blocking Port
on Firewall
Description
Table 1-7 ECS outgoing ports connections
Port Range Protocol Functionality Direction Result of Blocking
Port on Firewall
Description
23 Telnet (TCP) Control of Sony
endpoints
Out No control over
endpoints
Sony endpoint
53 DNS (TCP) Query DNS for domains
per call
Out DNS disabled DNS server
162
(configurable)
SNMP (UDP) SNMP Trap events Out No traps are sent To iVIEW Network Manager,
or to any other SNMP
manager station
1719 RAS (UDP) Sending LRQ messages to
Neighbor Gatekeepers
Both No RAS Neighbor Gatekeepers
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