We have an application with a Comcast-provided SMC router and two pfSense routers (Comcast <- building <- tenant). The building router (v2.3.0) gets an IPv6 address and can ping out. However in its DHCP logs I see:
dhcp6c invalid prefix length 64 + 4 + 64 dhcp6c XID mismatch (several of these) Am I correct that "invalid prefix length" means the Comcast router isn't delegating a /60 properly? I have it set: DHCPv6 Prefix Delegation size 60 Send IPv6 prefix hint checked If I as for a /56 I get "invalid prefix length 64 + 8 + 64." My second question was going to be about getting IPv6 to the PCs inside the tenant router but unless I'm mistaken I need a couple more /64 networks for that (what a waste of IPs...I know there's a lot but still...). Thanks, Steve Yates ITS, Inc. _______________________________________________ pfSense mailing list https://lists.pfsense.org/mailman/listinfo/list Support the project with Gold! https://pfsense.org/gold