Firewall settings
Network Extender 3
User Guide
4-2
Firewall settings
The Network Extender is designed to connect and automatically configure with
minimal user involvement, though in some cases, depending on the firewall settings,
some settings may need to be adjusted on the local LMT (see Figure 4-1).
Figure 4-1. LMT port
Table 4-1 provides details on the destination ports regarding the firewall settings that
are applicable for network administrators.
Table 4-1. Destination ports
Source Destination Protocol Destination
Port
Notes
Network Extender GPS Assistance Server TCP 80
Network Extender DNS Server UDP 53
Network Extender NTP Server UDP 123
Network Extender Verizon Security
Gateway
UDP 500/4500 More than one port may
be used for multiple
device installation.
Network Extender CMP TCP 80
Network Extender Verizon Security
Gateway
ESP/50 N/A When NAT/PAT is not
present.
Verizon SeGW Network Extender ESP/50 N/A When NAT/PAT is not
present.
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