Alcatel-Lucent 7450 ESS Series, Configuration Manual, Page: 112 / 540

Page 112 7450 ESS OS Router Configuration Guide
Description This command configures the use of challenge-response authentication.
The no form of the command reverts to the default never value.
Parameters
always — Specifies when challenge-response is to be used for the authentication of the tunnels in this
L2TP group.
Default
no challenge
Values
always
destruct-timeout
Syntax destruct-timeout destruct-timeout
no destruct-timeout
Context config>router>l2tp>group
config>router>l2tp>group>tunnel
Description
This command configures the period of time that the data of a disconnected tunnel will persist before
being removed.
The no form of the command removes the value from the configuration.
Default no destruct-timeout
Parameters destruct-timeout — [Specifies the automatic removal of dynamic L2TP sessions, in seconds, that are
no longer active.
Default no destruct-timeout
Values 60 — 86400
hello-interval
Syntax hello-interval hello-interval
no hello-interval
Context config>router>l2tp>group
Description This command configures the time interval between two consecutive tunnel Hello messages. The
Hello message is an L2TP control message sent by either peer of a LAC-LNS control connection.
This control message is used as a keepalive for the tunnel.
The no form of the command removes the interval from the configuration.
Default
60
Parameters
hello-interval — Specifies the time interval, in seconds, between two consecutive tunnel Hello
messages.
Default
no hello-interval
Values
60 — 3600