connecting and configuring switch with ASA5515

[nugusazeleke]

I have two isp and one ASA5515 firewall and want to connect ASA5515 TO switch port 24 is there any configuration must be done to connect firewall to switch  

[MHM Cisco World]

https://www.grandmetric.com/knowledge-base/design_and_configure/how-to-create-subinterface-on-cisco-asa/

Check this how config subinterface in Asa. 

Now for security if you use same security level for multi subinterface then you need 

Same security permit intra-interface

Same security permit inter-interface

https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/118962-configure-asa-00.html

[balaji.bandi]

If the Switch Acting as Layer 2, you do not need to do any configuraton on the switch. (if you have only 1 Inside interface)

here is the ISP dual Failover blog:

https://www.balajibandi.com/?p=1932

[paul driver]

Hello
if the fw interface is tagging (sub-interfaces) then the switch port will need to be a trunk otherwise it can just be a standard access port assign to a particular vlan