Celebrate National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Dell Sonicwall - IP Spoof Detection

Posted on 2014-11-17
1
Medium Priority
?
1,080 Views
Last Modified: 2016-11-23
The Setup:
Sonicwall NSA 4500
X0 LAN
X1 ISP#1
X2 ISP#2
X3 SAN network
X4 ISP #3
x5 ISP #5

X1-2 are actually the same ISP, but just have a disjoint subnet with static IP's in compeltely different ranges.  These two interfaces connect to a small switch and up to the ISP (radio based)

x5 ISP #4 is business class cable for browsing the internet.  No static IPs.

X4 ISP #3 - New ISP via fiber with a ton of static IP's.  

Here's my issue.   Only on the new X4 (ISP #3) - Any time I setup a NAT (either 1-2-1 or port based) and my firewall rules, nothing works.  Went as far as directly attaching a laptop to the carrier's handoff and assigning a static IP and it works.  

After some looking around, I am getting
Intrusion prevention    IP Spoof Dropped   <source> <destiantion>  mac: <MAC of the carriers router>


I can resolve this by turning off IP spoof detection on the "hidden" daiag page - but I'd really a)Not like to have to do that b) Have this work as planned.  

Thoughts?
0
Comment
Question by:JamesonJendreas
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 26

Accepted Solution

by:
Blue Street Tech earned 2000 total points
ID: 40480147
Hi JamesonJendreas,

Exclude the MAC addresses in IPS under Configure IPS Settings.

1. Create Address Objects

First create an Address Objects for each MAC address of the carriers router.

2. Create Address Object Group

Then create an Address Object Group named e.g. IPS Exclusion List and add the Address Objects to that group.

3. Configure IPS Services

Next go to Security Services > IPS and click Configure IPS Settings. Check Enable IPS Exclusion List and select Use Address Objects. Finally, select the newly created Address Object Group named e.g. IPS Exclusion List and click OK to save.
Let me know if you have any questions!
0

Featured Post

Moving data to the cloud? Find out if you’re ready

Before moving to the cloud, it is important to carefully define your db needs, plan for the migration & understand prod. environment. This wp explains how to define what you need from a cloud provider, plan for the migration & what putting a cloud solution into practice entails.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This program is used to assist in finding and resolving common problems with wireless connections.
In this article, WatchGuard's Director of Security Strategy and Research Teri Radichel, takes a look at insider threats, the risk they can pose to your organization, and the best ways to defend against them.
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question