ASA Firewall - Deny IP spoof for syslog logs

[MarcinB]

Hello,

I would like to send logs from ASA firewall towards syslog server but when I configured it on highly loaded interface I got below logs:

2 May 24 2022 16:31:18 106016 Deny IP spoof from (10.X.X.X) to 10.X.X.X on interface xxxxx

From - is IP assigned to this interface 

To - is syslog server IP

IP spoofing is disabled.

Everything works fine for the other interface where there is much less traffic.

Thank you in advance for any solutions.

[MHM Cisco World]

106016

How could you resolve this situation?

Determine if the IP address belongs to an external user trying to compromise the protected network. Check for misconfigured clients.

Other solution which is unsecured is 
disable IP spoof in interface.

[MarcinB]

Yes, I saw this information about syslog log but what exaclty should I do? Which commands or settings are helpful there?

[MHM Cisco World]

NO ip verify reverse-path interface xxxx