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Create One 2 One Nat sonicwall 2040

Posted on 2009-02-22
Medium Priority
Last Modified: 2012-05-06
I have a sonicwall 2040 with standard os 3.1

external ips
external gateway

i have the wan interface set to nat enabled using
i have with a dmz running ftp

i want to setup a 121 nat using any of my available ips. to point to one server on the internal network for HTTP traffic.

i've gone through the manual several times over but can't figure out what i'm missing.

i have 121 nat setup for going to with a range of 1

i have a firewall rule setup to allow all source traffic * to destination lan of for Web HTTP.
if i then try to navigate to IP from a fully external connection i get nothing.

however if i navigate to it loads the appropriate website on the server.

ideally i'd like only the NAT'd server to respond to the request. but i'd live with both external ips working if i have to.
Question by:deeburp
  • 2
  • 2

Author Comment

ID: 23706802
also when i got into routes.. the ip doesn't show up as routing anywhere.. however and are automatically entered due to them being in the WAN config and DMZ config.
LVL 32

Accepted Solution

dpk_wal earned 2000 total points
ID: 23717931
Just to verify if you have entered all the setting correctly:
1. In Network > One-to-One NAT page.
2. Select the Enable One-to-One NAT check box.
3. Click Add. Entered IP address [private address of server].
4. Entered IP address [public address of server].
5. Entered 3.
6. Clicked OK; clicked Apply.

For access rule:
Click Firewall, then Access Rules.
Click Add.
Configure the following settings:
" Allow
" Service - HTTP
" Source - WAN
" Destination - LAN

Please note indicating WAN/LAN is important.

Please check and update.

Thank you.
LVL 32

Expert Comment

ID: 23717941
One correction; in step 5 above [to add 1-to-1 NAT ]; the entry should read 1 [as you wish only one internal server to be mapped to one public IP]; instead of 3.

Thank you.

Author Closing Comment

ID: 31549869
many many thanks!!! just needed it reiterated or something very nicely written!

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