If you are determined to use this specific legacy version, here is the recommended protocol to do so safely.

If you do not strictly require version 6.0.1, it is highly recommended to download the (8.2.2+) directly from Cisco Networking Academy or Skills For All.

Packet Tracer 6.0.1’s Windows version runs poorly under Wine on Mac. Frequent crashes and missing libraries make this unreliable.

Packet Tracer 6.0.1 is a legacy, 32-bit application . It will not run on macOS Catalina (10.15) or newer without complex virtual machines. Cisco officially recommends using Packet Tracer 8.x for modern Macs. This article is for archival and educational purposes.

: Added support for IPv6, Hot Standby Router Protocol (HSRP), and ACL sequence numbers.

xattr -d com.apple.quarantine /Applications/Packet\ Tracer.app