How can I release the DHCP IP on Ruijie EG?

You can excute this command in CLI to release the DHCP IP on Ruijie EG:

Ruijie#ruijie#clear ip dhcp binding * // Clear the DHCP binding entries of all terminals on the EG
Ruijie#clear ip dhcp binding x.x.x.x  //Clear the DHCP binding entries of a specific terminal IP on the EG, x.x.x.x is the IP you want to retrieve.

Note: After the DHCP binding table is cleared, the terminal will still possess the IP address. The DHCP server cannot reclaim the allocated IP address directly. You can only apply for the IP address assignment after the IP address on the terminal device expires or the terminal device manually disconnect to releases the IP address.