Your company makes a hardware firewall that runs a custom Linux kernel. What are your obligations under GPLv2?

Your company makes a hardware firewall that runs a custom Linux kernel. What are your obligations under GPLv2?

• You must ensure your custom kernel runs on a regular Intel machine
• You must make the source to your kernel available
• There are no requirements
• You must make the source to your custom web interface available
• You must make your hardware designs available