Today’s Topic: How to communicate between the interfaces of same security level and communication (in and out) through same interface in Cisco ASA


To permit communication between interfaces with equal security levels, or to allow traffic to enter and exit the same interface, use the same-security-traffic command in global configuration mode. To disable the same-security traffic, use the no form of this command.

same-security-traffic permit {inter-interface | intra-interface}
no same-security-traffic permit {inter-interface | intra-interface}

Syntax Description
inter-interface Permits communication between different interfaces that have the same security level.
intra-interface Permits communication in and out of the same interface.

This command is disabled by default.