ipv6 tunnel problem

[Laurentiu]

hi i have been trying to set up ipv6 tunnel sadly at a certain point the router refuse to accept any routing and dhcpv6 i dont know what to try next ??? i try the firewall settings using static routes
this all started wen i change the tunnel ip address
the dhcpv6 crash and never wanted to start again...
i can ping the gateway from the tunnel and any site so the tunnel works but i can access from the Lan interface!!!
any help is apreciated!!!!
2021-06-18T01:24:02   dhcpd[31134]   exiting.   
2021-06-18T01:24:02   dhcpd[31134]       
2021-06-18T01:24:02   dhcpd[31134]   process and the information we find helpful for debugging.   
2021-06-18T01:24:02   dhcpd[31134]   before submitting a bug. These pages explain the proper   
2021-06-18T01:24:02   dhcpd[31134]   bugs on either our web page at www.isc.org or in the README file   
2021-06-18T01:24:02   dhcpd[31134]   than a configuration issue please read the section on submitting   
2021-06-18T01:24:02   dhcpd[31134]   If you think you have received this message due to a bug rather   
2021-06-18T01:24:02   dhcpd[31134]       
2021-06-18T01:24:02   dhcpd[31134]   Configuration file errors encountered -- exiting   
2021-06-18T01:24:02   dhcpd[31134]   ^   
2021-06-18T01:24:02   dhcpd[31134]   prefix6 2a09:XXX:1e0:128:0:0:0:1 2a09:XXX:1e0:128:ffff:ffff:ffff:ffff/48;   
2021-06-18T01:24:02   dhcpd[31134]   /etc/dhcpdv6.conf line 15: network mask too short   
2021-06-18T01:24:02   dhcpd[31134]   For info, please visit https://www.isc.org/software/dhcp/   
2021-06-18T01:24:02   dhcpd[31134]   All rights reserved.   
2021-06-18T01:24:02   dhcpd[31134]   Copyright 2004-2021 Internet Systems Consortium.   
2021-06-18T01:24:02   dhcpd[31134]   Internet Systems Consortium DHCP Server 4.4.2-P1

[franco]

Basically DHCPd on the LAN side complains that /48 is too big of a network to delegate. There seems to be an error on the WAN side configuration?

What is your ISP delegated subnet size?


Cheers,
Franco

[Laurentiu]

the log is from the moment i started to be a little frustrated and desperate.
i have a tunnel from tunnelbroker.ch its a /64 tunnel how ever it gives the same error
my provider offeres dhcpv6 sadly since the bug even that does not work
i want to make the tunnel work so that i can have a static ip adress.
[edit]
i manage to make it work by nat6
i did a backup and a full reset and restore and now i can ping my lan ip from the internet...
i use the Services: Router Advertisements to provide ips and NATv6 to route from lan to wan ...