cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1517
Views
0
Helpful
2
Replies

Cisco FMC ICMP Block Not working

Garry Cooper
Level 1
Level 1

Setup FMC to block icmp on all my WAN interfaces.

Some IP's are blocked and dont reply but some interfaces do.

I followed this guide https://www.lammle.com/post/new-ftd-device-not-like-new-asa

 

Any ideas as I need all interfaces blocked from icmp

I have 4 interfaces within my WAN zone.

 

Config attached.

icmp.JPG

icmp2.JPG

 

 

 

2 Replies 2

Marvin Rhoads
Hall of Fame
Hall of Fame

Can you share the definition you created for the ICMP-Deny object?

It should be denying ICMP type 8 packets (echo requests).

This is the port setup

 

 

Review Cisco Networking for a $25 gift card