IPv6 DHCP-PD – radvd dies after interface reset - dhcpv6 does not reaquire addr

razzfazz

Works fine here:


root   30031  0.0  0.1  5780  1472  ??  INs   3:12PM   0:00.01 /usr/local/sbin/dhcp6c -d -D -c /var/etc/dhcp6c_wan.conf -p /var/run/dhcp6c_re0.pid re0

As a side note, while preparing to make these edits, I noticed that I actually had two instances of dhcp6c running, with identical parameters and all. This is on a machine that was last rebooted earlier today, and before I had made any changes. I'm assuming that shouldn't normally happen?

razzfazz

Where does the additional logging go? /var/log/system.log?

priller

Ok, I'm up and running with the -D option now.

I'm also seeing two instances:

root 43632 0.0 0.0 5780 1448 ?? Is 7:21AM 0:00.00 /usr/local/sbin/dhcp6c -d -D -c /var/etc/dhcp6c_wan.conf -p
root 43762 0.0 0.0 5780 1436 ?? INs 7:21AM 0:00.00 /usr/local/sbin/dhcp6c -d -D -c /var/etc/dhcp6c_wan.conf -p

priller

It only ran for about 50 minutes and then all IPv6 address was lost and radvd silently died. The only thing in the logs is:

Jun 6 08:32:16 dhcp6c[43632]: client6_timo: all information to be updated was canceled
Jun 6 08:31:29 dhcp6c[43632]: client6_timo: all information to be updated was canceled
Jun 6 08:13:00 dhcp6c[43632]: client6_timo: all information to be updated was canceled
Jun 6 08:11:11 dhcp6c[43632]: client6_timo: all information to be updated was canceled

Jun 6 07:22:03 radvd[26213]: version 1.9.1 started
Jun 6 07:21:56 radvd[57345]: Exiting, failed to read config file.
Jun 6 07:21:56 radvd[57345]: error parsing or activating the config file: /var/etc/radvd.conf
Jun 6 07:21:56 radvd[57345]: syntax error in /var/etc/radvd.conf, line 2:
Jun 6 07:21:56 radvd[57345]: version 1.9.1 started

johnpoz

Part of the problem is that .conf is blank - i posted this before

[2.1-RC0][admin@pfsense.local.lan]/root(1): cat /var/etc/radvd.conf

Automatically Generated, do not edit

[2.1-RC0][admin@pfsense.local.lan]/root(2):

priller

@johnpoz:

Part of the problem is that .conf is blank - i posted this before

Sure is.

I used to be able to pull IPv6 addressing and it would only go away after the lease expired after 4 days. Something has made the problem much worse since the mid-May build I was running.

I've been trying repeatedly. At times addressing will appear for a short time then go away. Most of the time I can't get any IPv6 addressing.
radvd.conf is blank.

Jun 6 13:13:47 radvd[60869]: Exiting, failed to read config file.
Jun 6 13:13:47 radvd[60869]: error parsing or activating the config file: /var/etc/radvd.conf
Jun 6 13:13:47 radvd[60869]: syntax error in /var/etc/radvd.conf, line 2:
Jun 6 13:13:47 radvd[60869]: version 1.9.1 started

I have added the -D option ( /usr/local/sbin/dhcp6c -d -D -c ) and there is no additional output that I can find.

It's not a Comcast problem. If I fire up m0n0wall or Mikrotik ROS, it works fine, all the time.

2.1-RC0 (amd64)
built on Thu Jun 6 09:07:25 EDT 2013
FreeBSD 8.3-RELEASE-p8

johnpoz

Yup same here - I fired up m0n0wall, bing bang zoom everything working for ipv6. Now with pfsense if you do get an address its only there for a very short time.

I would think this should be a high priority issue - is there just something odd with the way comcast is going it that pfsense does not like? Or is this an issue across the board with other native ipv6 providers?

But I have to say that ipv6 is currently broken in pfsense - at least with comcast as isp in chicagoland area.

edit:
Be more than happy to let someone in to my pfsense install to do any sort of troubleshooting they would like to do.. Just PM me and can setup access.

jimp

@johnpoz:

Yup same here - I fired up m0n0wall, bing bang zoom everything working for ipv6. Now with pfsense if you do get an address its only there for a very short time.

I would think this should be a high priority issue - is there just something odd with the way comcast is going it that pfsense does not like? Or is this an issue across the board with other native ipv6 providers?

But I have to say that ipv6 is currently broken in pfsense.

DHCPv6+PD may be broken, but that is not true of "ipv6" in general. My ALIX has a completely different issue in that it refuses to get DHCPv6+PD at bootup, but if I edit/save/apply the WAN, it comes up and stays up indefinitely. It gets DHCPv6+PD from my "main" home router, though, not an ISP.

My main home router does IPv6 via HE.net tunnels and it works fine.

maurer

@jimp:

DHCPv6+PD may be broken, but that is not true of "ipv6" in general. My ALIX has a completely different issue in that it refuses to get DHCPv6+PD at bootup, but if I edit/save/apply the WAN, it comes up and stays up indefinitely. It gets DHCPv6+PD from my "main" home router, though, not an ISP.

My main home router does IPv6 via HE.net tunnels and it works fine.

same here - but my ISP is RCS & RDS Romania - one of the biggest IPv6 ISP and no.1 in Ro - nationwide availability

dotOne

Unfortunately, for me it's more or less the same.
But even the first offer is not accepted.

Normally the link local address is used to aquire a lease.
I have a virtual IPv6 address that is used by haproxy to hide multiple servers behind a single IPv6 address.
now the DHCP6 client uses this ip as the interface IP so every offer is rejected with a XID mismatch.

When I remove the virtual IP the initial lease is accepted but when the lease is expired the renew is denied.

/Andre

razzfazz

Interesting… I'm on Comcast, and my 2.1-RC0 box (June 4 snapshot) passed the four-day uptime mark today without losing IPv6 connectivity (and with rc.newwanip6 entries in the system log earlier today). Could this issue have been resolved?

johnpoz

I am still having issues.. Maybe I will try a clean install?

Just updated too
2.1-RC0 (i386)
built on Sun Jun 9 18:28:57 EDT 2013
FreeBSD 8.3-RELEASE-p8

Jun 10 04:24:31 radvd[9391]: Exiting, failed to read config file.
Jun 10 04:24:31 radvd[9391]: error parsing or activating the config file: /var/etc/radvd.conf
Jun 10 04:24:31 radvd[9391]: syntax error in /var/etc/radvd.conf, line 2:
Jun 10 04:24:31 radvd[9391]: version 1.9.1 started
Jun 10 04:24:25 radvd[97175]: Exiting, failed to read config file.
Jun 10 04:24:25 radvd[97175]: error parsing or activating the config file: /var/etc/radvd.conf
Jun 10 04:24:25 radvd[97175]: syntax error in /var/etc/radvd.conf, line 2:
Jun 10 04:24:25 radvd[97175]: version 1.9.1 started
Jun 10 04:24:08 radvd[8125]: Exiting, failed to read config file.
Jun 10 04:24:08 radvd[8125]: error parsing or activating the config file: /var/etc/radvd.conf
Jun 10 04:24:08 radvd[8125]: syntax error in /var/etc/radvd.conf, line 2:
Jun 10 04:24:08 radvd[8125]: version 1.9.1 started

So I get a ipv6 global and link local on wan.. But not seeing anything on lan side.. I have tried resetting back to none none for wan and lan, then back to dhcp6 and track.. I have rebooted, etc. Seems like some progress was having issues grabbing global ipv6 on the wan before, etc.

netkeys

I'm on Concast, and was unable to get it to work on beta versions. I upgraded to the RC0 dated June 8 Saturday and it's been up and running since. Hasn't been 4 days yet so I don't know if it will stick. Not sure if it's fixed but it's working for the 1st time. I had been running M0n0wall because of the problems.

@razzfazz:

Interesting… I'm on Comcast, and my 2.1-RC0 box (June 4 snapshot) passed the four-day uptime mark today without losing IPv6 connectivity (and with rc.newwanip6 entries in the system log earlier today). Could this issue have been resolved?

eri--

I have put some more fixes for radvd wrong config error.
Please try a today snapshot.

priller

Nope. I did a fresh install of …

2.1-RC0 (amd64)
built on Tue Jun 11 06:04:26 EDT 2013
FreeBSD 8.3-RELEASE-p8

... The 1st time it booted, it successfully got IPv6 addressing. I let it run a couple of hours and rebooted. Now there is nothing I can do to get it to pull IPv6 addressing again.

dhcp6c[68545]: dhcp6_ctl_authinit: failed to open /usr/local/etc/dhcp6cctlkey: No such file or directory
dhcp6c[68545]: client6_init: failed initialize control message authentication
dhcp6c[68545]: client6_init: skip opening control port

Also, radvd doesn't even show up as a stopped service, it does not appear on the services screen.

netkeys

I tried the update from today and it broke the working IPv6.

catfish99

I'm on comcast service. Zoom Modem is IPv6 enabled. PFsense, well can't keep a ipv6 address.

I'll stay at the latest beta that I have and update when there's a consensus that the IPv6 is working again.

BrianPlencner

Back on May 9th, I did a clean install of this version

2.1-BETA1 (i386)
built on Thu May 9 07:05:02 EDT 2013
FreeBSD 8.3-RELEASE-p8

I was able to have IPv6 work for around 4 days before the lease from Comcast's DHCP servers renewed.

After that point, I was not able to get IPv6 working again.

What's interesting is if I do a full clean install, I still cannot get it to work. Its almost like something is left behind in some configuration somewhere that a full install does not remove.

I am looking to download and install the latest beta build, but wondering if the problem has been fixed yet. So, if someone has installed a newer build with some success, please pass that on.

–Brian

razzfazz

See my 6/10 post; I've had IPv6 connectivity on Comcast for more than four days straight with the June 4 snapshot. Haven't stayed on any one revision for long enough since.

priller

@razzfazz:

See my 6/10 post; I've had IPv6 connectivity on Comcast for more than four days straight with the June 4 snapshot. Haven't stayed on any one revision for long enough since.

If you would like to do an experiment …. reboot pfSense and see if it gets IPv6 addressing again.

If I build a fresh install, it works exactly once. If I reboot, it will not pull addressing again.