dumpcap permissions - Quick help for Ubuntu newbie needed

["RUOFF, LARS (LARS)** CTR **" <lars.ruoff () alcatel-lucent com>]

Hi,
On an Ubunutu 10.04, I tried to
sudo dumpcap -w d1.pcap
which gave me:
The file to which the capture would be saved ("d1.pcap") could not be opened: Permission denied.
according to my naive Linux knowledge, i would have expected "sudo" to give me all the necessary permissions.
What am i missing here?

regards,
Lars

___________________________________________________________________________
Sent via:    Wireshark-users mailing list <wireshark-users () wireshark org>
Archives:    http://www.wireshark.org/lists/wireshark-users
Unsubscribe: https://wireshark.org/mailman/options/wireshark-users
             mailto:wireshark-users-request () wireshark org?subject=unsubscribe