Pfsense — 2.5.1 Download Repack Iso

Netgate, the maintainer of pfSense, generally removes older versions from their primary mirrors once they are superseded by more secure releases.

You will see three options:

Since official mirrors typically only host current releases (e.g., 2.7.x+), you must use reliable mirrors or archives: Internet Archive pfSense CE 2.5.1-RELEASE-amd64.iso is available for direct download. GitHub Mirrors : Third-party repositories like CloudSentralDotNet/iso_pfsense Pfsense 2.5.1 Download Iso