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

same-security-traffic

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.

Defaults
This command is disabled by default.

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