To save captured frames to a file

1. Open Network Monitor.
2. If prompted, select the local network from which you want to capture data by default.
3. On the Capture menu, click Buffer Settings, and then set the buffer and frame size as appropriate.
4. On the Capture menu, click Start.
5. To halt the data capture temporarily, on the Capture menu, click Pause.
6. To stop and view the data capture, on the Capture menu, click Stop and View.
7. On the File menu, click Save As.
8. Open the folder in which you want to store the file.
9. In the File Name box, specify a file name.
10. If necessary, do one of the following:
    • To save a range of frames, in the From box, type the beginning frame number, and in the To box, type the ending frame number.
    • To save only the frames that appear when the current display filter is in use, select the Filtered check box.
11. Click Save.

Notes

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• If you add a network interface, you must restart Network Monitor before you can capture data on that interface.
• Network Monitor runs with reduced access in which administrative privileges have been removed. If you receive an Access Denied message when you follow this procedure, add your user name to the permissions list of the file or folder that you want to access. See Related Topics for more information about setting permissions on files and folders.
• To change the default network, on the Capture menu, click Networks, and then choose the network on which you are trying to capture data.
• If you want to use Network Monitor to load the file you saved, use the .cap file extension. Network Monitor automatically uses this file extension if you do not specify one.
• Network Monitor cannot open capture files larger than 1 GB (1,024 MB).
• When you save a range of frames or apply a display filter and then save the filtered frames, Network Monitor renumbers the saved frames, starting with 1. However, you can create a file with the original frame numbers preserved. To do this, on the File menu, click Print, click the General tab, and then select the Print to file check box.

Related Topics