What this means
The IEEE assigned the MA-L block 300D9E to Ruijie Networks Co.,LTD. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 30:0D:9E, it is Ruijie Networks Co.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 300D9E?
300D9E is registered to Ruijie Networks Co.,LTD in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Ruijie Networks Co.,LTD's block covers 16,777,216 addresses.
What devices use 300D9E?
Any network device with a MAC address starting 30:0D:9E was manufactured by or for Ruijie Networks Co.,LTD.