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08.05.2008 at 02:26PM PDT, ID: 23623922
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8.5

SonicWall blocks valid WAN IPs as "IP spoof"

Asked by sfschool in TCP/IP, DSL Lines / Cable Internet, Networking Hardware Firewalls

Tags: , , , ,

Our SonicWall TZ190 blocks some important and legitimate WAN-to-LAN traffic just because the incoming IP sources are similar to our OPTional WAN IP (which is a dynamic IP, not a static one) . For example, outside WAN 74.130.X.Y is blocked as an "IP Spoof" because our OPTional WAN IP is 74.130.Y.X.  (I'm not a network expert, so please forgive my simple explanation.)

Unfortunately, the TZ190 doesn't provide an easy or obvious way to solve this problem, at least not for me.

Does anyone know of a solution? Could I configure rules that would work around the false positives in spoof-detection? Could I connect the OPTional WAN modem to another router and then to the SonicWall? If so, how so? Can incoming traffic be forced through our Primary Wan (which IS a static IP and works fine)?

Any suggestions would be greatly appreciated; I'm on the hook for this at a new place of employment.Start Free Trial
 
Keywords: SonicWall blocks valid WAN IPs as "IP …
Title
1 Emails being spoofed
2 Is there a way to "manage" spoofed …
3 Is there any way to stop/reduce the e…
4 Spoofing Email addresses?
5 Spam of spoof?
6 Email spoofing  / SMSE
 
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About this solution

Zones: TCP/IP, DSL Lines / Cable Internet, Networking Hardware Firewalls
Tags: SonicWall, TZ190, firewall, two isp, configure opt primary wan
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Solution Provided By: harbor235
Participating Experts: 2
Solution Grade: A
 
 
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[+][-]08.06.2008 at 10:50PM PDT, ID: 22178180

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