User's Manual

Configuring the Firewall
Configuring One-to-One Network Address Translation (NAT)
Cisco RV 120W Administration Guide 99
4
•
IP Address Range
—Choose to allow any IP address in the configured range
to access the Cisco RV 120W. In the F
From
field, enter the starting IP address
for the allowed range. In the T
To
field, enter the ending IP address for the
allowed range
•
Only this PC
—Choose to restrict access to only the PC you are currently
using to manage the Cisco RV 120W. In the I
IP Address
field, enter the IP
Address of the PC to be given remote management permissions.
STEP 3 Enter the port number used for the remote connection.
STEP 4 To enable Simple Network Management Protocol (SNMP) to be used remotely to
manage the Cisco RV 120W, check the R
Remote SNMP Enable
box.
STEP 5 Click S
Save
.
Configuring One-to-One Network Address Translation (NAT)
One-to-one NAT is a way to make systems behind a firewall that are configured
with private IP addresses appear to have public IP addresses.
To configure one-to-one NAT, choose F
Firewall
> A
Access Control
> O
One-to-One
NAT
. The One-to-One-NAT Rules Table lists the available One-To-One NAT rules
that have been configured. It displays the following fields:
• Private Range Begin—The starting IP address in the private (LAN) IP
address.
• Public Range Begin—The starting IP address in the public (WAN) IP
address.
• Public IP Subnet Mask—The Subnet Mask of the public IP address.
• Range Length—Range length maps one to one private address to public
address up to the given range.
The Services for One-To-One-NAT Table shows configured services. Services for
one-to-one NAT allows you to configure the service to be accepted by the private
IP (LAN) address when traffic is sent to the corresponding public IP address.
Configured services on private IP addresses in the range are accepted when
traffic is available on the corresponding public IP address.