I’ll have to get back to you on this tomorrow, but I JUST got IPv6 working again with Comcast. The short answer:
This helped me: https://lipidity.com/openbsd/router/ Recently Comcast changed how their dhcpv6 servers work in my area and I had to change the dhcpv6-server rule to this pass in on egress inet6 proto udp \ from { fe80::/10 2001:558::/32 } port dhcpv6-server \ to fe80::/10 port dhcpv6-client \ no state The difference being adding the 2001:558::/32 address, being Comcast’s IPv6 block they talk over. Before this I had v6 working for years until a maintenance window and then it automagically stopped. Courtney > On Apr 6, 2024, at 8:12 AM, Sonic <sonicsm...@gmail.com> wrote: > > > Running -current on my router and finally (after years) decided to move into > using ipv6. > I added "inet6 autoconf" to hostname.em0 (also has "inet autoconf") and I get > a link local address: > ================================= > # ifconfig em0 > em0: inet6 fe80::2132:31ff:fe0b:7ea4%em0 prefixlen 64 scopeid 0x1 > inet 69.31.273.6 netmask 0xfffffc00 broadcast 69.31.273.255 > ================================= > And an ipv6 default route: > ================================= > Internet6: > Destination Gateway > Flags Refs Use Mtu Prio Iface > default fe80::301:5bcf:fe75:2646%em0 > UGS 0 22 - 8 em0 > ================================= > Which matches the default router proposal listed by slaacctl: > ================================= > em0: > index: 1 running: yes temporary: yes > lladdr: 40:62:31:0b:7e:a4 > inet6: fe80::2132:31ff:fe0b:7ea4%em0 > Router Advertisement from fe80::201:5cff:fe75:2646%em0 > received: 2024-04-06 10:49:17; 0s ago > Cur Hop Limit: 0, M: 1, O: 1, Router Lifetime: 1800s > Default Router Preference: Medium > Reachable Time: 3600000ms, Retrans Timer: 1000ms > prefix: 2001:623:8016:54::/64 > On-link: 0, Autonomous address-configuration: 0 > vltime: 604800, pltime: 302400 > prefix: 2001:623:6007:a5::/64 > On-link: 0, Autonomous address-configuration: 0 > vltime: 604800, pltime: 302400 > prefix: 2001:623:500e:16::/64 > On-link: 0, Autonomous address-configuration: 0 > vltime: 604800, pltime: 302400 > prefix: 2001:623:4020:a5::/64 > On-link: 0, Autonomous address-configuration: 0 > vltime: 604800, pltime: 302400 > Default router proposals > id: 1, state: PROPOSAL_CONFIGURED > router: fe80::301:5bcf:fe75:2646%em0 > router lifetime: 1800 > Preference: Medium > updated: 2024-04-06 10:49:17; 0s ago, timeout: 1788s > ================================= > However, there's no other ipv6 address on the interface - I suspect an > address from one of those 2001: prefix groups needs to be assigned. > Should not dhcpleased handle this? > Most of the web posts I find deal with the pre-dhcpleased days. > > I'm on Comcast (Xfinity) in the US. > > Thank you, > Chris > > >
