At this point, I am going to assume the firewalls have undergone the out-of-the-box initial setup and hardening. The details on getting this accomplished can be found at https://www.cisco.com/c/en/us/support/security/asa-5500-series-next-generation-firewalls/products-installation-and-configuration-guides-list.html:
- Configure the EtherChannel interfaces for the enterprise and Industrial Zones.
- Connect to the ASA firewall with ASDM and navigate to the interfaces configuration page and add an EtherChannel interface for the Enterprise Zone interface:
- Note that Security Level is set to 0, which ...