Stateless Dhcpv6 Configuration; About Stateless Dhcpv6; Operation - HP 10500 Series Configuration Manual
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Also See for 10500 Series:
- Security configuration manual (596 pages) ,
- Configuration manual (512 pages) ,
- Specifications (42 pages)
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Figure 53 Using the Renew message for address/prefix lease renewal
As shown in
out a Renew message at T1, it multicasts a Rebind message to all DHCPv6 servers at T2 (that is, when 80%
preferred lifetime expires). Then the DHCPv6 server responds with a Reply message, informing the client
about whether or not the lease is renewed.
Figure 54 Using the Rebind message for address/prefix lease renewal
If the DHCPv6 client receives no response from the DHCPv6 servers, the client stops using the
address/prefix when the valid lifetime expires.
For more information about the valid lifetime and the preferred lifetime, see
Stateless DHCPv6 configuration
The following sections discuss stateless DHCPv6 configuration.
About stateless DHCPv6
After obtaining an IPv6 address/prefix, a device can use stateless DHCPv6 to obtain other configuration
parameters from a DHCPv6 server. This application is called stateless DHCPv6 configuration.
With an IPv6 address obtained through stateless address autoconfiguration, a device automatically
enables the stateless DHCPv6 function after it receives an RA message with the managed address
configuration flag (M flag) set to 0 and with the other stateful configuration flag (O flag) set to 1.
Stateless address autoconfiguration means that a node automatically generates an IPv6 address based
on the information obtained through router/prefix discovery. For more information, see
IPv6
basics."
Operation
As shown in
The DHCPv6 client multicasts an Information-request message to the multicast address of all
1.
DHCPv6 servers and DHCPv6 relay agents. The Information-request message contains an Option
Figure
54, if the DHCPv6 client receives no response from the DHCPv6 server after sending
Figure
55, stateless DHCPv6 operates as follows:
137
"Configuring IPv6
basics."
"Configuring
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Troubleshooting
