[Dnsmasq-discuss] dnsmasq and external DHCPv6 servers

Eric Dittman dittman at dittman.net
Mon Jan 3 21:55:18 UTC 2022


I have a Ubiquiti UDM SE.  It uses dnsmasq for DNS, DHCP, and RAs.  I
have external DNS and DHCP servers so I want to send RA packets with
the M and O flags set and the A flag reset, but I can't figure out the
proper configuration to do that.  Right now just to get RA working on
the subnets for IPv6 I have the following:

enable-ra
ra-param=*,high,0
domain=mydomain
dhcp-range=2001:470:xxxx::,ra-names,slaac
dhcp-range=2001:470:xxxx:10::,ra-names,slaac
dhcp-range=2001:470:xxxx:20::,ra-names,slaac
dhcp-range=2001:470:xxxx:40::,ra-names,slaac

I'm getting autoconf IPv6 addresses but I'm not seeing any DHCPv6
packets on the external DHCPv6 servers (a pair per subnet).

Any ideas how I can get this working?
-- 
Eric Dittman



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