We help IT Professionals succeed at work.
Get Started

CheckPoint UTM450 Firewall ANti-spoofing problem

2,593 Views
Last Modified: 2012-05-06
Packets get dropped on the Internal interface, and it the Tracker says it is because of Anti-Spoofing.
CheckPoint Internal = 172.17.192.1/30 --> 172.17.192.2/30-->172.17.1.0/24-->172.17.0.0/30--> 192.168.150.0/30-->172.16.0.0/30-->172.16.1.0/24 (My computer)

I am trying to ping out the CheckPoint from my computer.

I have defined the internal interface topology to be Specific to group 172.17.1.0/24 and 172.17.192.0/30.

Then, under the Anti-Spoofing of the Internal interface, I told it to ignore packets from 172.16.1.0/24.

It still said it was dropped due to anti-spoofing.

Even after I disabled anti-spoofing altogether on both the internal and external interfaces, it still would not work.
Comment
Watch Question
Commented:
This problem has been solved!
Unlock 1 Answer and 8 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE