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Chapter 5
Configuring Access Lists and Filtering GSS Traffic
Table 5-2
*
49 or user
configured
*
53
80 or user-
configured
123
*
*
1304
1974
*
*
2001-2005
*
3002-3008
*
OL-10410-01
Inbound Traffic Going Through a Firewall to the GSS
Source Port
Destination
(Remote
Port
Device)
(GSS)
20–23
*
53
*
*
123
161
443
1304
1974
2000
2001–2005
*
3002–3008
*
5001
Deploying GSS Devices Behind Firewalls
Protocol
TCP
FTP, SSH, and Telnet services
TCP
Return traffic for TACACS+
UDP, TCP GSS DNS server traffic
UDP
Return traffic of GSS software
reverse lookup, "dnslookup"
queries, and name server
forwarding
TCP
Return traffic of TCP and HTTP
keepalives
UDP
Return traffic of NTP updates
UDP
SNMP traffic
TCP
Primary GSSM GUI
UDP
Return traffic of CRA keepalives
UDP
Return traffic of DRP protocol
traffic
UDP
Inter-GSS periodic status reporting
TCP
Inter-GSS communication
TCP
Return traffic of inter-GSS
communication
TCP
Inter-GSS communication
TCP
Return traffic of inter-GSS
communication
TCP
Global sticky mesh protocol traffic
Cisco Global Site Selector Administration Guide
Details
5-13
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