13
SIP Operation Manual V2.6
Gateway in a NAT network
The gateway uses a virtual IP address and the IP sharing function of other systems to connect to the
Internet.
LAN IP address of IP sharing
Please avoid IP address 192.168.0.1-192.168.8.254 (You may need to
change the settings of IP sharing or change SIP series Gateway LAN Port IP
address)
Gateway IP Settings
Set as static IP address, and assign the LAN IP address of the IP sharing to
the Default Gateway.
If the WAN of the IP sharing device has static IP address, then
the NAT IP address is set as the Public IP address of the IP
sharing.
NAT /STUN Settings
Please refer to P. 29 for the Use NAT.
Enable
If the WAN of the IP sharing device uses a dynamic IP address,
then it has to comply with the DDNS settings. When suing
NAT, you must enter the URL (Uniform Resource Locator) that
is registered to the DDNS server.
The WAN of the IP
sharing device has a static
IP address.
Disabled
DDNS Settings
Please refer to P. 29 for the DDNS
Settings
The WAN of the IP
sharing device has a
dynamic IP address.
Enabled: enter the registered URL (Uniform
Resource Locator) into the network settings ->
under NAT
Leased line / ADSL / Cable modem
Internet
Internet
Firewall / NAT
PC
PC
PC
PBX
Phone
Phone
WAN