DHCP_RELEASE(1) General Commands Manual DHCP_RELEASE(1) NAME dhcp_release6 - Release a DHCPv6 lease on a the local dnsmasq DHCP server. SYNOPSIS dhcp_release6 --iface --client-id --server-id server-id --iaid --ip [--dry-run] [--help] DESCRIPTION A utility which forces the DHCP server running on this machine to release a DHCPv6 lease. OPTIONS -a, --ip IPv6 address to release. -c, --client-id Colon-separated hex string representing DHCPv6 client id. Normally it can be found in leases file both on client and server. -d, --dry-run Print hexadecimal representation of generated DHCPv6 release packet to standard output and exit. -h, --help print usage information to standard output and exit. -i, --iaid Decimal representation of DHCPv6 IAID. Normally it can be found in leases file both on client and server. -n, --iface Network interface to send a DHCPv6 release packet from. -s, --server-id Colon-separated hex string representing DHCPv6 server id. Normally it can be found in leases file both on client and server. NOTES MUST be run as root - will fail otherwise. LIMITATIONS Only usable on IPv6 DHCP leases. SEE ALSO dnsmasq(8) AUTHOR This manual page was written by Simon Kelley . DHCP_RELEASE(1)