Configuring Routed Or Static On-Demand Calls - Novell NETWARE 6-DOCUMENTATION Manual

Configuring Routed or Static On-Demand Calls

3
Select Expert Options .
4
Select On Demand Spoofing .
The default state is Use Default . This means the call uses the spoofing
state to which the interface is currently set.
If spoofing is enabled on the interface but you want to disable it only
for this call, select Disabled.
If spoofing is disabled on the interface but you want to enable it only
for this call, select Enabled.
5
Press Esc and save your changes.
6
Press Esc to return to the Internetworking Configuration menu.
7
If you want these changes to take effect immediately, select Reinitialize
System .
If you want to configure other parameters, do so now, then reinitialize the
system when you are finished.
Novell Internet Access Server 4.1 enables you to configure a routed on-
demand call or static on-demand call for each WAN call destination.
Unlike the standard on-demand call, which relies on statically configured
routes and services at each end of a point-to-point connection, a routed on-
demand call runs a routing protocol while the link is active. When the link
goes down, the routes and services made known by the routing protocol
become unavailable.
Typically, a Data-Link layer timer triggers the termination of an on-demand
call after no data has crossed the link for some period of time. Because a
routing protocol running over a routed on-demand call would reset this timer
each time a protocol packet is sent or received, it would keep a link active
because of the protocol data flowing through. To solve this problem, Novell
Internet Access Server 4.1 uses a timer that operates at the Network layer. This
timer is reset only when data packets—not protocol packets—cross the link.
In this way, the routing updates do not keep an on-demand link active when
no data is being transmitted.
NOTE:
A minimal (seed) set of static routes and services must be associated with
a routed on-demand call for key server access. Unless the call is known to get
67
Setting Up