Digi IX20 User Manual page 1105

Diagnostics
i. Add a new VLAN filter:
(config network analyzer name)> add filter vlan end
(config network analyzer name filter vlan 0)>
ii. Set the VLAN that should be be captured or ignored:
(config network analyzer name filter vlan 0)> vlan value
(config network analyzer name filter vlan 0)>
where value is number o the VLAN.
iii. (Optional) Set the filter should ignore packets from this VLAN:
(config network analyzer name filter vlan 0)> ignore true
(config network analyzer name filter vlan
By default, is option is set to false, which means that the filter will capture packets
from this MACaddress.
iv. Repeat these steps to add additional VLANs.
f. To create a filter using Berkeley Packet Filter (BPF) syntax:
(config network analyzer name)> filter custom value
(config network analyzer name)>
where value is a filter using Berkeley Packet Filter (BPF) syntax. Values that contain spaces
must be enclosed in double quotes (").
See Example filters for capturing data traffic
6. (Optional) Schedule the analyzer to run, using this capture filter, based on a specified event or
at a particular time:
a. Enable scheduling for this capture filter:
(config network analyzer name)> schedule enable true
(config network analyzer name)>
b. Set the mode that will be used to run the capture filter:
(config network analyzer name)> when mode
(config network analyzer name)>
where mode is one of the following:
n
n
IX20 User Guide
boot: The script will run once each time the device boots.
interval: The script will start running at the specified interval, within 30 seconds
after the configuration change is saved. If interval is selected, set the interval:
(config add network analyzer name)> on_interval value
(config add network analyzer name)>
where value is any number of weeks, days, hours, minutes, or seconds, and takes
the format number{w|d|h|m|s}.
For example, to set on_interval to ten minutes, enter either 10m or 600s:
Analyze network traffic
0)>
for examples of filters using BPF syntax.
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