Cisco Expressway Series Manuale di configurazione - Pagina 10
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Cisco Expressway IP Port Usage Configuration Guide
Networking Port Reference: Expressway Traversal Pair
Table 4 Basic Networking Ports for Expressway-C
Purpose
Administrator SSH
Administrator HTTP
Administrator HTTPS
Name resolution (DNS)
Time synchronization (NTP)
* Expressway redirects HTTP to HTTPS by default. You don't need to open the HTTP port, but you can allow HTTP for
convenience and redirect to HTTPS.
† Expressway will attempt DNS resolution over TCP if the response is too large.
Table 5 Basic Networking Ports for Expressway-E
Purpose
Administrator SSH
Administrator HTTP
Administrator HTTPS
Internal name resolution (DNS)*
External name resolution (DNS)
Internal time synchronization
(NTP)*
External time synchronization
(NTP)
* You may prefer to connect Expressway-E to external DNS and NTP. You do not need both.
Src. IP
Admin PCs
*
Admin PCs
Admin PCs
Expressway-C
Expressway-C
Src. IP
Admin PCs
Admin PCs
Admin PCs
Expressway-E private
IP
Expressway-E public
IP
Expressway-E private
IP
Expressway-E public
IP
Src. ports
Protocol
1024-65535
TCP
1024-65535
TCP
1024-65535
TCP
1024-65535
UDP & TCP
123
UDP
Src. ports
Protocol
1024-
TCP
65535
1024-
TCP
65535
1024-
TLS
65535
1024-
UDP
65535
& TCP
1024-
UDP
65535
& TCP
123
UDP
123
UDP
10
Dest. IP
Expressway-C
Expressway-C
Expressway-C
†
Internal name server
Internal time server
Dest. IP
Expressway-E private
IP
Expressway-E private
IP
Expressway-E private
IP
Internal name server
External name server
Internal time server
External time server
Dst. Ports
22
80
443
53
123
Dst.
Ports
22
80
443
53
53
123
123