2.70.2.2.8 Reachable-Time

Specifies the time in seconds for which the router is considered to be reachable.

The default value of "0" means that the router advertisements have no specifications for reachable time.

Telnet path:
Setup > IPv6 > Router-Advertisements > Interface-Options > Reachable-Time
Possible values:
Max. 10 numbers in the range 0 – 2147483647
Default:
0