Hello, My ISP gave me a /56 and told me it was statically routed (no DHCPv6-PD).
Let's say this prefix 2a02:aa08:BBBB:YY00::/56 is now x00::/56 What I want to do, is to split this prefix into /64 and use the /64 for my vlans. So what I did is on my interfaces I have the following ips: wan x00::1:1/64 vlan1 x01::1:1/64 vlan2 x02::1:1/64 ... The ISP router is at x00::1 so I did route add -inet6 default x00::1 In pf.conf I have a pass all for icmpv6 >From this point I have two issues: - I can ping internet from my router, but it cuts every 10 seconds or so. If I inspect the traffic, I see that the ISP router is sending neighbor discovery with my router address, and that my router does not respond. So on my wan interface I see tons of neighbor advertisement from the ISP router at x00::1 with flags router/solicited/override set, I also see neighbor solicitation from the ISP router to my router. There is also neighbor solicitation from my router to the ISP router, but what I don't see is the neighbord advertisement from my router TO the ISP router. So I guess the ISP router is removing the NDP entry of my router after some times, and put it back when it sees the neighbor solicitation again. How can I make so that my openbsd router will respond to the neighbor solicitation from the ISP router? - The second issue is how do I tell the ISP (cisco) router that I am the router for the /64 in the /56? If I ping from an inside host, the packet gets router into the WAN interface, and I see that the ISP router is doing neighbor solicitation for the source addrress, like this: ping from x01::10:1 to external ip E packet reaches x01::1:1, is routed by the openbsd router, and is visible on wan ISP router sees the packet on the WAN inteface and sends a neighbor solicitation for x01::1:1 which is not answered because x01::1:1 is on another subnet behind the openbsd router. Any idea for those two issues? -- Nicolas Goy Engineer & Developer https://www.kuon.ch https://www.goyman.com
