5-15
Cisco Global Site Selector Administration Guide
OL-10410-01
Chapter 5 Configuring Access Lists and Filtering GSS Traffic
Deploying GSS Devices Behind Firewalls
*Any legal port number
123
123
UDP
NTP updates
161
*
UDP
Return traffic of Simple Network
Management Protocol (SNMP)
traffic
443
*
TCP
Return traffic of Primary GSSM
GUI
1304
1304
UDP
CRA keepalives
1974
1974
UDP
DRP protocol traffic
*
2000
UDP
Inter-GSS periodic status
reporting
*
2001–2005
TCP
Inter-GSS communication
2001-2005
*
TCP
Return traffic of inter-GSS
communication
*
3002–3008
TCP
Inter-GSS communication
3002-3008
*
TCP
Return traffic of inter-GSS
communication
3340
*
TCP
Sticky and Config Agent
communication
3341
*
TCP
Sticky communication source
3342
*
TCP
Sticky and DNS processes
communication
*
5001
TCP
Global sticky mesh protocol
traffic
5001
*
TCP
Return traffic of global sticky
mesh protocol traffic
*
5002
UDP
KAL-AP keepalives
Table 5-3
Outbound Traffic Originating from the GSS (continued)
Source Port
(GSS)
Destination
Port
(Remote
Device)
Protocol
Details