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22.7 Legacy Series / IPV6 RA/DHCP DNS Issue
« on: August 12, 2022, 12:36:55 pm »
Hi,
I was wondering if someone can help with the following...
I have IPv6 configured with with interface tracking enabled to enable delegation of the PD prefix received from my ISP.
I have enabled "Allow manual adjustment of DHCPv6 and Router Advertisements " and entered a DNS server into the RA/DHCPv6 configuration in OPNsense.
RA is enabled and in managed mode.
The issue i have come across is that the DNS server that is set in RA/DHCPv6 is sent to the client correctly and is what I'd expect, after 10mins or so the dns server that i have set in the dhcpv6 / RA config disappears and the v6 address of the OPNSense appliance appears as a DNS server on the client. Seems to be happening for all devices on my network.
Have i missed configured something that could be causing this?
Can't seem to get my heard around why this would be happening.
Thanks,
Sam!
I was wondering if someone can help with the following...
I have IPv6 configured with with interface tracking enabled to enable delegation of the PD prefix received from my ISP.
I have enabled "Allow manual adjustment of DHCPv6 and Router Advertisements " and entered a DNS server into the RA/DHCPv6 configuration in OPNsense.
RA is enabled and in managed mode.
The issue i have come across is that the DNS server that is set in RA/DHCPv6 is sent to the client correctly and is what I'd expect, after 10mins or so the dns server that i have set in the dhcpv6 / RA config disappears and the v6 address of the OPNSense appliance appears as a DNS server on the client. Seems to be happening for all devices on my network.
Have i missed configured something that could be causing this?
Can't seem to get my heard around why this would be happening.
Thanks,
Sam!