Alcatel-Lucent 6850-48 Network Guide

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IPX RIP/SAP Filtering
Configuring IPX
page 33-12
OmniSwitch AOS Release 6 Network Configuration Guide
September 2009
Configuring RIP Filters
IPX RIP filters allow you to minimize the number of entries put in the IPX RIP routing table. RIP input 
filters control which networks are allowed into the routing table when IPX RIP updates are received. RIP 
output filters control which networks the switch advertises in its IPX RIP updates.
Use th
 command to configure a RIP input or output filter. To configure a global filter that 
will be applied to all traffic, enter the command, specify whether it is an input (in) or output (out) filter, 
then specify whether you want the filter to allow or block traffic. For example, to create a filter that will 
block all the incoming RIP packets you would enter: 
-> ipx filter rip in block
You can narrow the filter by specifying a VLAN. For example, to create a filter that will block all the 
incoming RIP packets from VLAN 1 you would enter: 
-> ipx filter 1 rip in block
You can also narrow the filter by specifying a network. You must enter the network number and the 
network mask. For example, to create a filter that will block the incoming RIP packets from network 40 
and its subnets you would enter: 
-> ipx filter rip in block 40 mask ffffffff
Use the no ipx rip filter command to delete a RIP filter. For example, to delete a global RIP filter that was 
configured to block incoming RIP packets you would enter:
-> no ipx filter rip in block
Use the optional syntax to delete a filter for a specific VLAN or network. If you are deleting the filter for a 
specific network you can also enter the network mask. To delete a filter from all VLANs/networks, use 
only the basic command syntax (e.g., no ipx filter rip in allow).
Use th
 command to display all IPX filters.
Note. RIP filters work only on switches running the RIP protocol. They do not work on switches running 
the NLSP protocol. Use RIP filters with care because they can partition a physical network into two or 
more segments.
Configuring SAP Filters
IPX SAP filters allow you to minimize the number of entries put in the SAP Bindery Table. SAP input 
filters control the SAP updates received by the switch prior to a switch accepting information about a 
service. The switch will filter all incoming service advertisements received before accepting information 
about a service. SAP output filters control which services are included in the SAP updates sent by the 
switch.
Use th
 command to configure a SAP input or output filter. To configure a global filter that 
will be applied to all traffic, enter the command, specify the SAP packet type to be filtered (all – all SAP 
packets, or a specific 4-digit hex SAP type), specify whether it is an input (in) or output (out) filter, then 
specify whether you want the filter to allow or block traffic. For example, to block all SAP updates sent by 
the switch you would enter:
-> ipx filter sap all out block