Adv.-Valid-Lifetime

Defines the time in seconds, after which the validity of an IPv6 address expires. Expired addresses are no longer available for new connections.

Telnet path:

Setup > IPv6 > Router-Advertisements > Prefix-Options > Adv.-Valid-Lifetime

Possible values:

Max. 10 numbers in the range 0 – 2147483647

Default:

2592000