Hi All,
I am trying to migrate from ISC DHCPv4 and DHCPv6 to Dnsmasq, with only partial success so far. I have followed the docs and example provided, but my understanding of Dnsmasq is rather poor and consequently the result is only partly working as intended.
1. When SIP phones are set with their own static IPv4 (no DHCPv4 solicitation) and also configured to obtain a stateful DHCPv6 address from the router, plus SLAAC, they fail to obtain an IPv6 address:
https://service.snom.com/display/wiki/HowTo+-+Networking+-+IPv6
The logs show a sequence of DHCPSOLICIT from the phones and DHCPADVERTISE from the router's interface, but eventually they time out and do not obtain any IPv6 address whatsoever. Interestingly, other hosts receive IPv6 stateful addresses off the same router NIC, so far it is only the phones which fail to do so. The ISC DHCPv6 had no problem serving the phones with an address from within the IPv6 range allocated to the router's NIC.
I still have Services > Router Advertisements enabled, rather than the Dnsmasq > General > Router advertisements, which is left disabled. I understand this is the recommended approach, have I got this wrong? Is there anything else I need to configure to have Dnsmasq working with IPv6 as ICS is able to do?
2. LAN clients receive the configured Dnsmasq host 'name.internal' as set in Services > Dnsmasq > Hosts, but nslookup fails to resolve local domain names returning NXDOMAIN, while reverse lookups against the host's IP address return correctly the host name. What could have I missed or misconfigured?
Grateful for any pointers.