199003: Reducing link MTU
Cisco ASA is a security device that provides the combined capabilities of a firewall,an antivirus,and an intrusion prevention system. It also facilitates virtual private network (VPN) connections.It helps to detect threats and stop attacks before they spread through the network.
Message: %ASA-6-199003:Reducing link MTU dec.
Event 199003 is generated when the ASA sends an ICMP message to an outside host,which uses a larger MTU than the inside network,to negotiate an appropriate MTU.
How could you resolve this situation?
This event does not require any action.