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Chapter 3: Terminal Menu Operation and Structure
54 Express L768/L1.5 User Manual 61202192L1-1
DLCI Mapping/Filters
The Express L768/L1.5 can block packets in and out of a PVC port by use of
the filters. They are set up in two steps: 1) define the types of packets that
would be of interest in the Configuration/Security/Filter Defines menu, and
2) set up the filter type and combination of defines that will cause a packet
block.
Filters/In from PVC
Write security: 2; Read security: 5
The packets which come into the Express L768/L1.5 via this PVC can be fil-
tered in three ways:
Disabled (def) - Turns off packet input filtering. No incoming
packets from this PVC are blocked.
Block All - All incoming packets from this PVC are blocked
except as defined in the Filters/In Exceptions list.
Forward All - All incoming packets from this PVC are not
blocked except as defined in the Filters/In Exceptions list.
Filters/In Exceptions
Write security: 2; Read security: 5
This is a list of up to 32 filter entries which can be combined using the opera-
tions field. The operations are performed in the order they appear on the list.
Active - Turns this entry active when set to On.
Type - Selects the filter define list to reference:
MAC - from the Configuration/Security/Filter
Defines/MAC Filter Defines list.
Pattern - from the Configuration/Security/Filter
Defines/Pattern Filter Defines list.
IP - from the Configuration/Security/Filter
Defines/IP Filter Defines list.
IPX - from the Configuration/Security/Filter
Defines/IPX Filter Defines list.
Filter List Name - Selects between filters defined in the list.