pfSense

Hello,

I'm using this WAN setup to get IPv6 prefix (::/56) from my ISP (Orange France):

- General Configuration
-- IPv6 Configuration Type : DHCP6

- DHCP6 Client Configuration
-- Options
--- [X] Advanced Configuration
--- [ ] Configuration Override
-- Request only an IPv6 prefix
--- [X] Only request an IPv6 prefix, do not request an IPv6 address
-- DHCPv6 Prefix Delegation size : 56
-- [X] Do not wait for a RA
-- DHCP6 VLAN Priority
--- [X] Enable dhcp6c VLAN Priority tagging
--- 802.1p priority : IC, 6 (needed by ISP)

- Advanced DHCP6 Client Configuration
-- Send options : comma separated options needed by ISP (raw-option 6, 11, 15 and 16)
-- Identity Association Statement
--- [X] Prefix Delegation
-- Prefix Interface : WAN

Result is a file like this :

interface vtnet0.832 {
 send ia-pd 0;
 send raw-option 15 *****;
 send raw-option 16 *****;
 send raw-option 6 *****;
 send raw-option 11 *****;
 script "/usr/local/etc/dhcp6c_wan_dhcp6withoutra_script.sh";
};
id-assoc pd { };

I then add to a LAN interface the setup:

- General Configuration
-- IPv6 Configuration Type : Track Interface

- Track IPv6 Interface
-- IPv6 Interface : WAN
-- IPv6 Prefix ID : 1 (any chosen from 0 to ff)

Expected: a ::/64 subnet is assigned to the LAN interface with the dhcp6c.conf file updated with the "id-assoc pd" block like :

interface vtnet0.832 { <same as before> };
id-assoc pd {
 prefix-interface vtnet1 {
  sla-id 1;
  sla-len 8;
 };
};

Actual behavior: the dhcp6c.conf file is not updated, no IPv6 subnet is assigned to the LAN interface.

Bypass: I actually use the "Configuration Override" option so I have to manually manage the configuration file.

I can see in the interfaces.inc file that, when NOT using "Advanced Configuration", the code look to handle the "trackiflist" so it can add the "prefix-interface" in the dhcp6c.conf file.

Why isn't this handled when using "Advanced Configuration" (function DHCP6_Config_File_Advanced) (so I can add send options for my ISP) ?

Maybe there is something wrong with my setup but after trying many things I can't get into it.

Thanks for reading.