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

Reply via email to