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–
Protocol: UDP; Port number: 500
–
Protocol: ESP; Port number: Not required
•
PPTP
–
Protocol: TCP; Port number: 1723
–
Protocol: GRE; Port number: Not required
*2
If a DHCP server is assigned, a MAC address must also be assigned (refer to 3.5.1 DHCP Server).
*3
If no remote host is assigned, IP packets that are sent from all the remote hosts will be targets for address translation.
3.
Click Add.
A confirmation screen is displayed.
4.
Click Back to [NAT Settings] to return to the previous screen.
Private IP Packet Restriction to WAN
Specifies whether to block IP packets that have private addresses as a source IP address to be sent to the
WAN port without NAT.
1.
Check the box to block IP packets.
2.
Click Set.
A confirmation screen is displayed.
3.
Click Back to [NAT Settings] to return to the previous screen.
VPN Pass-through
Specifies the type of VPN pass-through, IPSec or PPTP.
1.
Check the desired box.
2.
Click Set.
Note
•
The new setting must be followed by a reboot to become effective (refer to "3.8.1 Reboot").
•
It is necessary to configure the Port Mapping (Port Forwarding) settings to allow access from the
Internet.
Document Version 2008-10
3.5.4 NAT Settings
Installation Manual
61
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