How to disable DHCP IPv6 server ?

Pierre Couderc pierre at
Thu Jan 18 11:21:42 UTC 2018

I have the message :

Jan 15 17:25:02 server isc-dhcp-server[1307]: Launching both IPv4 and 
IPv6 servers (please configure INTERFACES in 
/etc/default/isc-dhcp-server if you...

but I have found no doc to explain how to "configure INTERFACES in 

I have tried to comment ##INTERFACESv6="" line, but without success.

I am under debian stretch.



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