Configuring Pcap Capture Filters - Avaya 8800 Troubleshooting Manual

3. Ensure PCAP is correctly configured:
Variable definitions
Use the information in the following table to complete the pcap command.
<1-1000>
acl-filter <1-4096>
enable [mode <tx|rx|
both| rxFilter|
txFilter|
bothFilter>]

Configuring PCAP capture filters

Use capture filters to better define the match criteria used on packets.
Avaya highly recommends using PCAP with IP or MAC filters to reduce the load on the PCAP
engine.
To create a functional capture filter that captures specific packets, create two filters. Use one
filter to capture specific packets, and another filter to drop all other packets.
Troubleshooting
pcap enable [mode {tx|rx|both|rxFilter|txFilter|bothFilter}]
show pcap port
Variable
Adds an IP filter set (Global or Source Destination) to a
port.
must already exist. Filter Global Set ID values are in the
range of 1 to 100 and Source/Destination sets are in the
range of 300 to 1000.
Adding a filter set causes the following to happen:
• Creates an IP traffic filter for a port if one does not
• Adds the IP traffic filter set to the port.
• Sets the mirror bit for all the filters in the set.
• Restores the default-action of the port. If default-action
• Enables the traffic filter on the port.
Applies an ACL to captured packets. The ACL ID can be
from 1 to 4096.
Enables or disables PCAP on the port. The default PCAP
mode captures ingress packets (rx mode).
If PCAP is enabled in filter mode, then only packets which
match the filter criteria are captured.
<1-1000> specifies the filter set. The IP filter set
already exist; otherwise, disables the IP traffic filter.
was not set, set to forwarding.
PCAP configuration
Value
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