Alcatel Carrier Internetworking Solutions Switch/Router Manuale Utente
Configuring IPX Serialization Packet Filtering
Page 27-26
Configuring IPX Serialization Packet Filtering
The
ipxserialf
command is used to enable and disable IPX Serialization Packet filtering on any
or all WAN routing services. This feature can be used to reduce traffic on WAN links by
preventing the transmission of NetWare serialization packets.
preventing the transmission of NetWare serialization packets.
Novell uses a serialization mechanism to make sure that licensed copies of NetWare are not
improperly copied to multiple servers. NetWare’s built-in copy protection scheme transmits
serialization packets between file servers which contain unique serialization numbers. These
packets are sent out at about 66-second intervals. If a server detects duplicate serialization
identifiers, it broadcasts a copyright violation message to all users and to the console log. The
major problem with this protection scheme for dial-on-demand links, such as ISDN, is the
generation of traffic that continuously reactivates the
improperly copied to multiple servers. NetWare’s built-in copy protection scheme transmits
serialization packets between file servers which contain unique serialization numbers. These
packets are sent out at about 66-second intervals. If a server detects duplicate serialization
identifiers, it broadcasts a copyright violation message to all users and to the console log. The
major problem with this protection scheme for dial-on-demand links, such as ISDN, is the
generation of traffic that continuously reactivates the
WAN
link.
Enabling IPX Serialization Filtering
Follow the steps below to enable IPX Serialization Packet Filtering.
1. Enter
ipxserialf
.
A screen similar to the following displays:
View the current status of all WAN routing services? (y or n) (n) :
Enter
y
if you do want to see the current filtering status. Enter
n
(or press
<Enter>
) if you
entered this command by mistake or if you don’t need to see the current status.
2. A screen similar to the following displays:
Group
IPX Serialization Filtering
----------
---------------------------------------
3
Disabled
4
Disabled
Enter Group (default: all WAN) :
This screen shows the
WAN
routing Groups that exist in the switch and the current status
of the IPX Serialization packet filtering for these groups.
Enter a Group number to proceed to enable IPX Serialization filtering for that Group.
Or, press
<Enter>
to select to enable filtering for all
WAN
routing services.
3. The following prompt displays:
Enable IPX Serialization Filtering? (y or n) (n) :
Enter
y
to select to enable IPX Serialization Filtering.
Enter
n
(or press
<Enter>
) if you do not want to enable Serialization Filtering.
4. The following prompt displays:
Enable IPX Serialization Filtering on all WAN routing services? (y or n) (n) :
This prompt requires you to verify that you want to enable filtering in order to avoid the
situation of accidental filtering of IPX Serialization packets. This example prompt asks if
you want to disable filtering on all WAN routing services. If you had entered a specific
Group number, the prompt would refer to that particular Group.
situation of accidental filtering of IPX Serialization packets. This example prompt asks if
you want to disable filtering on all WAN routing services. If you had entered a specific
Group number, the prompt would refer to that particular Group.
Enter
y
to enable IPX Serialization Filtering.