Edge-Core ECS4660-28F Management Manual page 1631

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DHCP Relay for IPv6

ipv6 dhcp relay

ip dhcp relay server (1629)

This command specifies the destination address or VLAN to which client

messages are forwarded for DHCP service. Use the no form to remove an

[no] ipv6 dhcp relay destination {ipv6-address | multicast {all |

vlan vlan-id}}

ipv6-address - A full IPv6 address including the network prefix and

host address bits. This address may designate another relay server

or a DHCPv6 server.

multicast - All DHCP server multicast address (FF:05::1:3).

all - All configured VLANs.

vlan-id - ID of configured VLAN. (Range: 1-4094)

Interface Configuration (VLAN)

This command is used to configure DHCPv6 relay functions for host

devices attached to the switch. If DHCPv6 relay service is enabled, and

this switch sees a DHCPv6 request broadcast, it inserts its own IP

address into the request so the DHCPv6 server will know the subnet

where the client is located. Then, the switch forwards the packet to the

next relay agent or DHCPv6 server on another network. When the

server receives the DHCPv6 request, it allocates a free IP address for

the DHCPv6 client from its defined scope for the DHCPv6 client's

subnet, and sends a DHCPv6 response back to the DHCPv6 relay agent

(i.e., this switch). This switch then broadcasts the DHCPv6 response

received from the server to the client.

When the multicast option is used, the switch multicasts the modified

client request to all configured VLANs or to a specified VLAN, and

enables DHCPv6 relay service for those VLANs.

Up to five relay destinations may be configured by repeating this

When issuing the no ipv6 dhcp relay destination command without

any arguments, the switch will delete all configured destination

addresses and disable DHCP for IPv6 relay for all VLANs.

| DHCP Commands

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