HPE FlexNetwork 5130 EI Series Layer 3-Ip Services Configuration Guide

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Specifying DHCPv6 servers on the relay agent
Specifying DHCPv6 server IP addresses
Restrictions and guidelines
• You can use the ipv6 dhcp relay server-address command to specify a maximum of
eight DHCPv6 servers on the DHCPv6 relay agent interface. The DHCPv6 relay agent forwards
DHCP requests to all the specified DHCPv6 servers.
• If a DHCPv6 server address is a link-local address or multicast address, you must specify an
outgoing interface by using the
interface keyword in this command. Otherwise, DHCPv6
packets might fail to reach the DHCPv6 server.
Procedure
1. Enter system view.
system-view
2. Enter interface view.
interface interface-type interface-number
3. Specify a DHCPv6 server.
ipv6 dhcp relay server-address ipv6-address [ interface interface-type
interface-number
]
By default, no DHCPv6 server is specified.
Specifying DHCPv6 servers for a DHCPv6 address pool on
the DHCPv6 relay agent
About specifying DHCPv6 servers for a DHCPv6 address pool on the DHCPv6 relay agent
This feature allows DHCPv6 clients of the same type to obtain IPv6 addresses, IPv6 prefixes, and
other configuration parameters from the DHCPv6 servers in the matching DHCPv6 address pool.
It applies to scenarios where the DHCPv6 relay agent connects to clients of the same access type
but classified into different types by their locations. In this case, the relay interface typically has no
IPv6 address configured. You can use the
gateway-list command to specify the gateway
addresses for clients matching the same DHCPv6 address pool.
Upon receiving a DHCPv6 Solicit or Request from a client that matches a DHCPv6 address pool, the
relay agent processes the packet as follows:
• Fills the link-address field of the packet with a specified gateway address.
• Forwards the packet to all DHCPv6 servers in the matching DHCPv6 address pool.
The DHCPv6 servers select a DHCPv6 address pool according to the gateway address.
Restrictions and guidelines
• You can specify a maximum of eight DHCPv6 servers for one DHCPv6 address pool for high
availability. The relay agent forwards DHCPv6 Solicit and Request packets to all DHCPv6
servers in the DHCPv6 address pool.
• If this feature is used in the PPPoE scenario, execute the
ipv6 dhcp relay
client-information record
command to enable the DHCPv6 relay agent to record
relay entries. When a PPPoE user gets offline, the DHCPv6 relay agent locates the matching
relay entry and sends a Release message to the DHCPv6 server.

HPE FlexNetwork 5130 EI Series Specifications

General

Brand	HPE
Model	FlexNetwork 5130 EI Series
Category	Switch
Language	English