Dhcp ipv6 relay

[dafna]

Hi,

When configuring dhcp relay on IPv4 network, only the dhcp server address should be configured.

Why the upper interface field must be configured on IPv6 network (red)? 

ipv6 dhcp relay destination 2001:DB8:10::1 FastEthernet1/0

Thanks,

  Dafna

[Manish Gogna]

Hi Dafna,

ipv6 dhcp relay destination ipv6-address[interface-type interface-number] Example: Router(config-if) ipv6 dhcp relay destination FE80::250:A2FF:FEBF:A056 ethernet 4/3

Specifies a destination address to which client packets are forwarded and enables DHCPv6 relay service on the interface.

Manish

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[James Leinweber]

At a guess, the interface is required in case the v6 address was link-local (fe80::), as the link-local addresses are present on all interfaces and don't have unique routes.

-- Jim Leinweber, WI State Lab of Hygiene