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49 lines
2.4 KiB
Markdown
49 lines
2.4 KiB
Markdown
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# FCX Licensing
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Brocade switches used to be licensed via a physical EEPROM with a magic string written into it. When the OS booted and saw this magic string, it knew to enable advanced features.
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The FCX was the last Brocade model to use this scheme before moving to keyed software licenses. They even shipped with a blank EEPROM in the socket ready to go. This means we just need to write the magic string to this EEPROM to fully unlock licensed features.
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**DISCLAIMER:** This is intended for educational use only, or in a homelab type environment.
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**WARNING:** DO NOT SHARE THIS LINK, GUIDE, OR FILES WITH ANYONE! The licenses will be blacklisted and this process will be patched out in firmware - do not ruin it for everyone.
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## What Does This Do?
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On the Brocade FCX, the ```ADV``` license in this guide unlocks the following:
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- BGP
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- VRFs
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- GRE Tunnels
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- IPv6-in-IPv4 tunnels - will terminate Hurricane Electric tunnels etc
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## Update The Switch
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To do this, you need the latest bootloader and OS.
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Follow this link to upgrade to the latest firmware image AND bootloader - [ICX/FCX Update & Start Guide](http://fohdeesha.com/docs/fcx/)
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**Note:** If this is a new/unconfigured switch, or a used switch with an unknown config on it, follow that update guide all the way through to the `Saving & Conclusions` section! This will get the switch in a state that it can TFTP licenses in.
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When upgraded and configured, move on to the below.
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## Enter Bootloader
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We need to enter the bootloader - Connect to the switches serial/console port using a program like Putty (9600 8N1). Power on the switch while watching your serial terminal - it will have a prompt saying `Hit b to enter the boot monitor` - press `b` quickly and you'll be dropped into the bootloader prompt.
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## Write The Magic String
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We just need to use an `i2c write` command in the bootloader to write the unlock code to the license EEPROM inside the FCX:
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```
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i2c write a 0 feedface00000200ffffffffffffffff 1
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```
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That's it, now reboot the switch to the full OS:
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```
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reset
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```
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## Checking The License
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Once it's fully booted into the OS, run `show version` - you should see the following line near the middle, look for the `PREM` and `PROM-TYPE FCX-ADV-U` - this means it's detected the license EEPROM and unlocked the `ADV` license:
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```
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HW: Stackable FCX648S-PREM (PROM-TYPE FCX-ADV-U)
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```
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If you see that, you're good to go and fully licensed.
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