D-Link DGS-6600-48TS Configuration Guide - Page 513
DHCPv6 Configurations Commands, Enabling the IPv6 DHCP client function
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Volume 9-Network Application / Chapter 51-DHCPv6 Client Configuration DHCPv6 Configurations Commands for the T1 and T2 parameters, unless those values in those fields are 0. The values in the T1 and T2 fields are the number of seconds until T1 and T2. The server selects the T1 and T2 times to allow the client to extend the lifetimes of any addresses in the IN_NA or IN_PD before the lifetimes expire, even if the server is unavailable for some short period of time. Recommended values for T1 and T2 are.5 and.8 times the shortest preferred lifetime of the addresses in the IA that the server is willing to extend, respectively. If the "shortest" preferred lifetime is 0xffffffff ("infinity"), the recommended T1 and T2 values are also 0xffffffff. If the time at which the addresses in an IA_NA or IA_PD are to be renewed is to be left to the discretion of the client, the server sets T1 and T2 to 0. If a server receives an IA_NA or IA_PD with T1 greater than T2, and both T1 and T2 are greater than 0, the server ignores the invalid values of T1 and T2 and processes the IA_NA or IA_PD as though the client had set T1 and T2 to 0. If a client receives an IA_NA pr IA_PD with T1 greater than T2, and both T1 and T2 are greater than 0, the client discards the IA_NA or IA_PD option and processes the remainder of the message as though the server had not included the invalid IA_NA or IA_PD option. There is also a command to limit the minimum value of T1 and T2, called ipv6 dhcp client information refresh minimum seconds. If the configured value is greater than the T1 or T2, T1 or T2 will be set to the configured value. DHCPv6 Configurations Commands • Enabling the IPv6 DHCP client function • Configuring a DHCPv6 Client minimum refresh time • Configuring an IPv6 address based on an IPv6 general prefix • Showing an ipv6 general prefix • Showing ipv6 dhcp configurations Enabling the IPv6 DHCP client function To enable the IPv6 DHCP client function use the IPv6 DHCP client pd command to enable the IPv6 DHCP client function. The function is disabled by default. The no version of the command disabled the function. Command ipv6 dhcp client pd { PREFIX-NAME | hint IPV6-PREFIX } [ rapid-commit ] Explanation Use this command to enable Dynamic Host Configuration Protocol (DHCP) for IPv6 client. Use the no form of this command to disable DHCPv6 features. DGS-6600 Configuration Guide 513