Cisco Small Business RV320, Руководство администратора

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Setup
Setting Up One-to-One NAT
38 Cisco RV320/RV325 Administration Guide
3
Adding or Editing a Service Name
To add or edit an entry on the Service list:
STEP 1
Click Service Management . If the web browser displays a warning about the
pop-up window, allow the blocked content.
STEP 2
To add a service, click Add in the Service Management table.
To edit a service, select the row and click Edit . The fields are open for
modification.
If the web browser displays a warning about the pop-up window, allow the
blocked content.
STEP 3
You can have up to 30 services in the list:
• Service Name— Short description.
• Protocol— Required protocol. Refer to the documentation for the service
that you are hosting.
• External Port— External port number.
• Internal Port— Internal port number.
STEP 4
Click Save .
Setting Up One-to-One NAT
One-to-one NAT creates a relationship that maps a valid WAN IP address to LAN IP
addresses that are hidden from the WAN (Internet) by NAT. This protects the LAN
devices from discovery and attack.
For best results, reserve IP addresses for the internal resources that you want to
reach through one-to-one NAT.
You can map a single LAN IP address or a range of IP addresses to an external
range of WAN IP addresses of equal length (for example, three internal addresses
and three external addresses). The first internal address is mapped to the first
external address, the second IP internal IP address is mapped to the second
external address, and so on.