Get-FileHash .\pfSense-CE-2.5.1-RELEASE-amd64.iso.gz -Algorithm SHA256
Try it. If your NICs are recognized, stay on the new version. Only fall back to 2.5.1 if the new kernel refuses to see your hardware. Pfsense 2.5.1 Download Iso
But why are thousands of sysadmins still searching for "pfSense 2.5.1 download iso" every single month? Get-FileHash
Stay safe, and happy firewalling. Did we miss a specific step for writing the memstick image to a USB drive? Let us know in the comments below. Pfsense 2.5.1 Download Iso
Netgate (the company behind pfSense) does not prominently display old ISO downloads on their main landing page. They want you on the latest version for security patches.