Comcat IPv6 not working any more? Can not request Delegation?

johnpoz

So I noticed my ipv6 stopped working??

DHCPv6 Prefix Delegation size, it stays on none - if I change it to 64 it just goes back to none.. Can not get this changed?

Currently running

2.1-BETA1 (i386)
built on Mon Feb 4 03:44:55 EST 2013
FreeBSD 8.3-RELEASE-p5

You are on the latest version. So I get an IPv6 address on wan since its set to dhcpv6 – but I get a 2001 address with a /128 prefix vs being being able to get a /64 and my lan is not working with track with this setup.

And gitsync as of a few minutes ago.

ok just noticed, I can put in 48 through 63 and it says in the gui.. But if I put in 64 it just jumps back to none.

bardelot

The variable check is too strict, apply https://github.com/bsdperimeter/pfsense/pull/374 to fix.

johnpoz

ok I did a gitsync and now I can set 64 in the delegation section on the wan.. But still getting a /128 on the wan interface and either nothing or if I toggle tracking on lan I have seen 2001 address that looks to be in the same prefix as what I get on the wan

2001:558:6033:12c::1

where wan /128 is 2001:558:6033:12c:1477:7c9d:b69f:a3d3

Before when it was working my lan would be for example 2601:d:8b80:bf::1, this is the old address I had. I thought comcast was using the 2601 for their /64

If I reboot then I don't show that ipv6 on the lan, but if I toggle none to tracking on the lan then the 2001 address shows up.

What can I do to help troubleshoot the issue?

edit: If I look in var/etc/dhcp6c_wan.conf


interface em1 {
        send ia-na 0;   # request stateful address
        send ia-pd 0;   # request prefix delegation
request domain-name-servers;
request domain-name;
script "/var/etc/dhcp6c_wan_script.sh"; # we'd like some nameservers please
};
id-assoc na 0 { };
id-assoc pd 0 {
};

That id-assoc pd doesn't look right - should something be in there vs empty {}?

edit: ok rebooted again and now I get 2601:d:8b80:c0:250:56ff:fe00:2

As lan IPv6 address, and if I set one of my lan boxes to use that as gateway and set its IPv6 to 2601:d:8b80:c0::666 it works, I can ping ipv6.google.com from the lan box, etc.

but should the track IPv6 be first IP in the prefix? And now if I look in dhcp6c_wan.conf, I see


interface em1 {
        send ia-na 0;   # request stateful address
        send ia-pd 0;   # request prefix delegation
request domain-name-servers;
request domain-name;
script "/var/etc/dhcp6c_wan_script.sh"; # we'd like some nameservers please
};
id-assoc na 0 { };
id-assoc pd 0 {
        prefix-interface em0 {
                sla-id 0;
                sla-len 0;
        };
};

bardelot

I'm wondering did you enter 0 into the "IPv6 Prefix ID" field or leave it blank?

johnpoz

Ok it was 0, I have deleted that and is now blank and rebooting.. Lets see what I get back on reboot.. Will edit post once it finishes reboot.

So I changed it to blank and got NOTHING now for lan ipv6 other than linklocal

And file is now


interface em1 {
        send ia-na 0;   # request stateful address
        send ia-pd 0;   # request prefix delegation
request domain-name-servers;
request domain-name;
script "/var/etc/dhcp6c_wan_script.sh"; # we'd like some nameservers please
};
id-assoc na 0 { };
id-assoc pd 0 {
};

Again – changing it back to 0 and rebooting again.

So once I changed it to 0 before reboot when I look at status for lan I showed this again
IPv6 address 2001:558:6033:12c::1

edit: ok after setting back to 0 on lan interface and rebooting I am now getting
IPv6 address 2601:d:8b80:c0:250:56ff:fe00:2

Again -- this is working, but pretty shitting address for your gateway ;) Why would it be such an address and not like 2601:d:8b80:bf::1 where it was before? I would think the address should be 2601:d:8b80:c0::1