Firewall settings
User Guide
User Guide
4-3
Table 4-2 lists the IP addresses of each of the network elements that need to be
included.
Note: The GPS Server URLs resolve to a varying list of IPs to ensure equal load distribution
among the active servers. The three URLs are used in a round robin fashion in case of a DNS
resolution failure or a server communication failure. The NTP service shall also be open. we are
using as a default NTP server pool.ntp.org.
Table 4-2. Firewall settings
Network Element IP Address Fully Qualified Domain Name
(FQDN)
GPS Server - http://xtrapath1.izatcloud.net
http://xtrapath2.izatcloud.net
http://xtrapath3.izatcloud.net
Security Gateway (SeGW) 141.207.245.235
141.207.137.235
141.207.129.235
141.207.243.235
141.207.249.235
141.207.225.235
141.207.213.235
141.207.233.235
141.207.197.235
141.207.193.235
141.207.145.235
141.207.151.235
141.207.177.235
141.207.173.235
141.207.181.235
sg.vzwfemto.com
NTP Server The default NTP server is based on a
pool.ntp.org.
Different locations will get different IP
addresses.
The user needs to make sure the
FQDN is allowed.
0.north-america.pool.ntp.org
1.north-america.pool.ntp.org
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