Dialogic IMG 1004 - Manual (Page 156)

Installation and Setup
148
IP Security for IMG and GCEMS
Topic Location:
IMG 1010-Installation and Setup Guide > IMG 1010-Software Installation and Setup
or
IMG 1004-Installation and Setup Guide > IMG 1004-Software Installation and Setup
To protested against denial of service attacks, the GCEMS (Linux server) and IMG Control IP
can be placed behind a firewall for security. Should remote access to the GCEMS server be
needed, a NAT, VPN, or other secure solution can be used for access to the server from the
public internet.
Following is a list of ports and protocols used by the IMG and the GCEMS
server.
 The Ports in red would need to be opened in the firewall based on the
recommendation above for remote access.
Connections between IMG and GCEMS
Port # Description Purpose
TCP: 20 & 21 FTP  Download IMG binary from GCEMS to
IMG
 Upload of software faults from IMG to
GCEMS
TCP: 23 Telnet IMG debug access
UDP: 111 PortMap Portmap is used to request a mount port.
Usually for NFS or NIS. The port request is
sent from the IMG to the GCEMS server. See
PortMap Flow .
UDP: 2049 NFS  Call tracing
 Downloading Call treatments
 Downloading routing & translation tables
UDP: 1812 Radius
Authentication
Call authentication
UDP: 1813 Radius
Accounting
Record Call Detail Records
TCP: 162 SNMP Network Monitoring
TCP: 12610 GCEMS control IMG Configuration and Provisioning
UDP: 123 NTP Network Time Protocol
TCP: 1099 ClientView ClientView Application (Only required when
ClientView is running on a different machine
from GCEMS)