Router advertisement not sending default gateway
-
@Euroguy said in Router advertisement not sending default gateway:
So, followup after a reinstallation of the system
Short answer is, things now seem to work.
Glad to see you got it up and running :)
I get both DHCP4 and 6 clients with leases now (although status of lease seems broken, always showing black down arrow even though lease is active and remote machine is up and active
I see that from time to time too. I think there are some timers that you can tweak (can't recall which ones though) that determines how long it takes without a "sign of life" before the client is marked as offline. For IPv4 there's an ARP timer ... and for v6 it should be an equivalent NDP timer. Can be set in System / Advanced / Tunables once you find out what they are called :)
DHCP6 server fails as DHCP requests / Discovery is done on fe80::/10 and that is not considered to be LAN it seems. I had to add a LAN allow rule for fe80::10 to ff02::/16 like this for DHCP6 to work:
e98b2093-2534-4c7e-9c09-6d54251d537d-image.pngThat rule shouldn't be needed, it is part of the automatic rule set added by pfSense. I get those by means of pfSense magic: (check in /tmp/rules.debug)
pass in quick on $WAN proto udp from fe80::/10 port = 546 to fe80::/10 port = 546 ridentifier 1000000463 label "allow dhcpv6 client in WAN" pass quick on $LAN inet6 proto udp from fe80::/10 to fe80::/10 port = 546 ridentifier 1000002551 label "allow access to DHCPv6 server" pass quick on $LAN inet6 proto udp from fe80::/10 to ff02::/16 port = 546 ridentifier 1000002552 label "allow access to DHCPv6 server" pass quick on $LAN inet6 proto udp from fe80::/10 to ff02::/16 port = 547 ridentifier 1000002553 label "allow access to DHCPv6 server" pass quick on $LAN inet6 proto udp from ff02::/16 to fe80::/10 port = 547 ridentifier 1000002554 label "allow access to DHCPv6 server" <snip>Update:
the timer tweak I used a long time ago wasnet.link.ether.inet.max_age=60which make the cached ARP-entry lifetime 60 seconds, I wanted clients to go offline faster. Default is 1200s. See https://man.freebsd.org/cgi/man.cgi?query=arp&sektion=4
