thanks adi, that was perfect! i had a stray comma in that list for some reason, probably from some failed copy/pasta error. the rest of the variable uses spaces.
On Wed, Oct 12, 2022 at 1:07 AM Adi Kriegisch <a...@kriegisch.at> wrote: > Hi! > > This could happen when there is a comma in the list of interfaces (in > /etc/default/isc-dhcp-server). Please check the output of > | debconf-show isc-dhcp-server > for commas in the 'isc-dhcp-server/interfaces' variable or the content > of /etc/default/isc-dhcp-server and look for commas in INTERFACESv4 or > INTERFACESv6. To specify more interfaces a space between the interfaces > is sufficient. > > best regards, > Adi Kriegisch >