In version 6 systems you may encounter the above message when adding a new extension. The cause is a URL change in the location of the wireshark public mainufacturers' database. We are working up a fix in source but it will take a few days. In the meantime here is a module fix you can apply directly to your system.
The module which fetches the manufacturers database is
/opt/sark/scripts/getmaclist.sh
Replace the module with this one
#!/bin/sh
# get a list of macs amd manufacturers
#
[ ! -e /opt/sark/www/sark-common/manuf.txt ] && touch /opt/sark/www/sark-common/manuf.txt
chown www-data:www-data /opt/sark/www/sark-common/manuf.txt
curl -L -s "https://gitlab.com/wireshark/wireshark/-/raw/master/manuf" > /tmp/manuf.txt
if [ -s /tmp/manuf.txt ]; then
diff /opt/sark/www/sark-common/manuf.txt /tmp/manuf.txt
if [ "$?" -ne "0" ] ; then
mv /tmp/manuf.txt /opt/sark/www/sark-common/manuf.txt
logger SARKgetmaclist - updated manufacturer MAC DB
else
logger SARKgetmaclist - manufacturer MAC DB up to date
fi
else
logger SARKgetmaclist - **** Could not fetch new manufacturer MAC DB ****
fi
This module gets run every Sunday at 00:00 hours so it will self heal if you leave it to its own devices. However, you can prime it by simply running the module.
sudo sh /opt/sark/scripts/getmaclist.sh
This issue was fixed in sail_6.2.0-22. It is not yet on the distro library but you can fetch and install it manually from Github here
https://github.com/aelintra/sail6